[{"data":1,"prerenderedAt":8448},["ShallowReactive",2],{"navigation_docs":3,"-csharp-ef-core-dbcontext-deep-dive":2949,"-csharp-ef-core-dbcontext-deep-dive-surround":8443},[4,1640,1765,2219,2352,2559,2641,2691,2748,2782,2908,2945],{"title":5,"icon":6,"path":7,"stem":8,"children":9},"C#","i-devicon-csharp","/csharp","01.csharp",[10,13,60,90,120,202,219,253,379,404,457,650,1346,1636],{"title":11,"path":7,"stem":12},"C# Roadmap","01.csharp/index",{"title":14,"icon":15,"path":16,"stem":17,"children":18,"page":59},"Fundamentals","i-lucide-book-open","/csharp/fundamentals","01.csharp/01.fundamentals",[19,23,27,31,35,39,43,47,51,55],{"title":20,"path":21,"stem":22},"Вступ до екосистеми .NET","/csharp/fundamentals/introduction-to-ecosystem","01.csharp/01.fundamentals/01.introduction-to-ecosystem",{"title":24,"path":25,"stem":26},"Структура програми на C#","/csharp/fundamentals/program-structure","01.csharp/01.fundamentals/02.program-structure",{"title":28,"path":29,"stem":30},"Змінні та Типи Даних","/csharp/fundamentals/variables-data-types","01.csharp/01.fundamentals/03.variables-data-types",{"title":32,"path":33,"stem":34},"Масиви","/csharp/fundamentals/arrays","01.csharp/01.fundamentals/04.arrays",{"title":36,"path":37,"stem":38},"Strings & Text Handling","/csharp/fundamentals/strings-text-handling","01.csharp/01.fundamentals/05.strings-text-handling",{"title":40,"path":41,"stem":42},"Дати і Час","/csharp/fundamentals/dates-time-handling","01.csharp/01.fundamentals/06.dates-time-handling",{"title":44,"path":45,"stem":46},"Потік Керування","/csharp/fundamentals/control-flow","01.csharp/01.fundamentals/07.control-flow",{"title":48,"path":49,"stem":50},"Методи","/csharp/fundamentals/methods","01.csharp/01.fundamentals/08.methods",{"title":52,"path":53,"stem":54},"Основи Відлагодження","/csharp/fundamentals/debugging-basics","01.csharp/01.fundamentals/09.debugging-basics",{"title":56,"path":57,"stem":58},"Інтерактивна Консоль (Classic)","/csharp/fundamentals/interactive-console","01.csharp/01.fundamentals/10.interactive-console",false,{"title":61,"icon":62,"path":63,"stem":64,"children":65,"page":59},"OOP","i-lucide-box","/csharp/oop","01.csharp/02.oop",[66,70,74,78,82,86],{"title":67,"path":68,"stem":69},"Package Management (Управління Пакетами)","/csharp/oop/package-management","01.csharp/02.oop/01.package-management",{"title":71,"path":72,"stem":73},"Класи та Об'єкти","/csharp/oop/classes-objects","01.csharp/02.oop/02.classes-objects",{"title":75,"path":76,"stem":77},"Властивості та Поля","/csharp/oop/properties-fields","01.csharp/02.oop/03.properties-fields",{"title":79,"path":80,"stem":81},"Стовпи ООП","/csharp/oop/oop-pillars","01.csharp/02.oop/04.oop-pillars",{"title":83,"path":84,"stem":85},"Advanced Types","/csharp/oop/advanced-types","01.csharp/02.oop/05.advanced-types",{"title":87,"path":88,"stem":89},"Namespaces (Простори Імен)","/csharp/oop/namespaces","01.csharp/02.oop/06.namespaces",{"title":91,"icon":92,"path":93,"stem":94,"children":95,"page":59},"Advanced Core","i-lucide-zap","/csharp/advanced-core","01.csharp/03.advanced-core",[96,100,104,108,112,116],{"title":97,"path":98,"stem":99},"Generics (Узагальнення)","/csharp/advanced-core/generics","01.csharp/03.advanced-core/01.generics",{"title":101,"path":102,"stem":103},"Делегати, Події та Лямбда-вирази","/csharp/advanced-core/delegates-events-lambdas","01.csharp/03.advanced-core/02.delegates-events-lambdas",{"title":105,"path":106,"stem":107},"Interfaces Deep Dive (Інтерфейси: Поглиблений Розгляд)","/csharp/advanced-core/interfaces-deep-dive","01.csharp/03.advanced-core/03.interfaces-deep-dive",{"title":109,"path":110,"stem":111},"Обробка Винятків","/csharp/advanced-core/exception-handling","01.csharp/03.advanced-core/04.exception-handling",{"title":113,"path":114,"stem":115},"Pattern Matching","/csharp/advanced-core/pattern-matching","01.csharp/03.advanced-core/05.pattern-matching",{"title":117,"path":118,"stem":119},"Додаткові Можливості C#","/csharp/advanced-core/additional-features","01.csharp/03.advanced-core/06.additional-features",{"title":121,"icon":122,"path":123,"stem":124,"children":125,"page":59},"Architecture Best Practices","i-lucide-building-2","/csharp/architecture-best-practices","01.csharp/04.architecture-best-practices",[126,130,149,153,157,161,165,169],{"title":127,"path":128,"stem":129},"Software Design Principles (Частина 1)","/csharp/architecture-best-practices/software-design-principles","01.csharp/04.architecture-best-practices/01.software-design-principles",{"title":131,"icon":132,"path":133,"stem":134,"children":135,"page":59},"Design Patterns","i-lucide-folder","/csharp/architecture-best-practices/design-patterns","01.csharp/04.architecture-best-practices/02.design-patterns",[136],{"title":137,"icon":132,"path":138,"stem":139,"children":140,"page":59},"Creational","/csharp/architecture-best-practices/design-patterns/creational","01.csharp/04.architecture-best-practices/02.design-patterns/creational",[141,145],{"title":142,"path":143,"stem":144},"Singleton (Одинак)","/csharp/architecture-best-practices/design-patterns/creational/singleton","01.csharp/04.architecture-best-practices/02.design-patterns/creational/01.singleton",{"title":146,"path":147,"stem":148},"Builder (Будівельник)","/csharp/architecture-best-practices/design-patterns/creational/builder","01.csharp/04.architecture-best-practices/02.design-patterns/creational/02.builder",{"title":150,"path":151,"stem":152},"Building Professional CLIs","/csharp/architecture-best-practices/building-professional-clis","01.csharp/04.architecture-best-practices/03.building-professional-clis",{"title":154,"path":155,"stem":156},"Validation & Flow Control","/csharp/architecture-best-practices/validation-flow-control","01.csharp/04.architecture-best-practices/04.validation-flow-control",{"title":158,"path":159,"stem":160},"The Modern .NET Host (Microsoft.Extensions)","/csharp/architecture-best-practices/modern-dotnet-host","01.csharp/04.architecture-best-practices/05.modern-dotnet-host",{"title":162,"path":163,"stem":164},"Data Mapper: Repository та DAO патерни (Частина 1)","/csharp/architecture-best-practices/data-mapper-part1","01.csharp/04.architecture-best-practices/06.data-mapper-part1",{"title":166,"path":167,"stem":168},"Data Mapper: Repository та DAO патерни (Частина 2)","/csharp/architecture-best-practices/data-mapper-part2","01.csharp/04.architecture-best-practices/07.data-mapper-part2",{"title":170,"icon":132,"path":171,"stem":172,"children":173,"page":59},"Di Ioc","/csharp/architecture-best-practices/di-ioc","01.csharp/04.architecture-best-practices/08.di-ioc",[174,178,182,186,190,194,198],{"title":175,"path":176,"stem":177},"Проблема залежностей та Інверсія Контролю","/csharp/architecture-best-practices/di-ioc/the-dependency-problem","01.csharp/04.architecture-best-practices/08.di-ioc/01.the-dependency-problem",{"title":179,"path":180,"stem":181},"Будуємо власний Service Container","/csharp/architecture-best-practices/di-ioc/build-your-own-container","01.csharp/04.architecture-best-practices/08.di-ioc/02.build-your-own-container",{"title":183,"path":184,"stem":185},"Service Locator: Паттерн та Анти-паттерн","/csharp/architecture-best-practices/di-ioc/service-locator-pattern","01.csharp/04.architecture-best-practices/08.di-ioc/03.service-locator-pattern",{"title":187,"path":188,"stem":189},"Паттерни Dependency Injection","/csharp/architecture-best-practices/di-ioc/dependency-injection-patterns","01.csharp/04.architecture-best-practices/08.di-ioc/04.dependency-injection-patterns",{"title":191,"path":192,"stem":193},"Microsoft DI: IServiceCollection та IServiceProvider","/csharp/architecture-best-practices/di-ioc/microsoft-di-deep-dive","01.csharp/04.architecture-best-practices/08.di-ioc/05.microsoft-di-deep-dive",{"title":195,"path":196,"stem":197},"Service Lifetimes та Scopes","/csharp/architecture-best-practices/di-ioc/service-lifetimes-and-scopes","01.csharp/04.architecture-best-practices/08.di-ioc/06.service-lifetimes-and-scopes",{"title":199,"path":200,"stem":201},"DI Анти-паттерни та Найкращі Практики","/csharp/architecture-best-practices/di-ioc/di-anti-patterns-and-best-practices","01.csharp/04.architecture-best-practices/08.di-ioc/07.di-anti-patterns-and-best-practices",{"title":203,"icon":132,"path":204,"stem":205,"children":206,"page":59},"Standard Library","/csharp/standard-library","01.csharp/05.standard-library",[207,211,215],{"title":208,"path":209,"stem":210},"Collections (Колекції)","/csharp/standard-library/collections","01.csharp/05.standard-library/01.collections",{"title":212,"path":213,"stem":214},"High Performance Types (Високопродуктивні Типи)","/csharp/standard-library/high-performance-types","01.csharp/05.standard-library/02.high-performance-types",{"title":216,"path":217,"stem":218},"LINQ (Language Integrated Query)","/csharp/standard-library/linq","01.csharp/05.standard-library/03.linq",{"title":220,"icon":221,"path":222,"stem":223,"children":224,"page":59},"System Internals Concurrency","i-lucide-server","/csharp/system-internals-concurrency","01.csharp/06.system-internals-concurrency",[225,229,233,237,241,245,249],{"title":226,"path":227,"stem":228},"Memory Management","/csharp/system-internals-concurrency/memory-management","01.csharp/06.system-internals-concurrency/01.memory-management",{"title":230,"path":231,"stem":232},"Reflection API: System.Type та Метадані","/csharp/system-internals-concurrency/reflection-fundamentals","01.csharp/06.system-internals-concurrency/02.reflection-fundamentals",{"title":234,"path":235,"stem":236},"Attributes та Dynamic Language Runtime","/csharp/system-internals-concurrency/attributes-dynamic","01.csharp/06.system-internals-concurrency/03.attributes-dynamic",{"title":238,"path":239,"stem":240},"Expression Trees: Швидка Альтернатива Рефлексії","/csharp/system-internals-concurrency/expression-trees-compiled","01.csharp/06.system-internals-concurrency/04.expression-trees-compiled",{"title":242,"path":243,"stem":244},"Source Generators: Compile-Time Code Generation","/csharp/system-internals-concurrency/source-generators","01.csharp/06.system-internals-concurrency/05.source-generators",{"title":246,"path":247,"stem":248},"Multithreading Fundamentals","/csharp/system-internals-concurrency/multithreading-fundamentals","01.csharp/06.system-internals-concurrency/06.multithreading-fundamentals",{"title":250,"path":251,"stem":252},"Synchronization Primitives","/csharp/system-internals-concurrency/synchronization-primitives","01.csharp/06.system-internals-concurrency/07.synchronization-primitives",{"title":254,"icon":255,"path":256,"stem":257,"children":258,"page":59},"System Programming Windows","i-lucide-cpu","/csharp/system-programming-windows","01.csharp/07.system-programming-windows",[259,263,267,271,275,279,283,287,291,295,299,303,307,311,315,319,323,327,331,335,339,343,347,351,355,359,363,367,371,375],{"title":260,"path":261,"stem":262},"Як Працює Операційна Система","/csharp/system-programming-windows/how-os-works","01.csharp/07.system-programming-windows/01.how-os-works",{"title":264,"path":265,"stem":266},"Процеси в .NET — API та Запуск","/csharp/system-programming-windows/processes-in-dotnet","01.csharp/07.system-programming-windows/02.processes-in-dotnet",{"title":268,"path":269,"stem":270},"Процеси в .NET — IPC та Міжпроцесна Комунікація","/csharp/system-programming-windows/02a.processes-ipc","01.csharp/07.system-programming-windows/02a.processes-ipc",{"title":272,"path":273,"stem":274},"Application Domains та Збірки — AppDomain і AssemblyLoadContext","/csharp/system-programming-windows/appdomains-assemblies","01.csharp/07.system-programming-windows/03.appdomains-assemblies",{"title":276,"path":277,"stem":278},"Application Domains та Збірки — Plug-in Система з Hot-Reload","/csharp/system-programming-windows/03a.appdomains-plugin-system","01.csharp/07.system-programming-windows/03a.appdomains-plugin-system",{"title":280,"path":281,"stem":282},"Потоки — Основи та API Thread","/csharp/system-programming-windows/thread-fundamentals","01.csharp/07.system-programming-windows/04.thread-fundamentals",{"title":284,"path":285,"stem":286},"Потоки — Lifecycle, Пріоритети та Безпечне Завершення","/csharp/system-programming-windows/04a.thread-lifecycle-priorities","01.csharp/07.system-programming-windows/04a.thread-lifecycle-priorities",{"title":288,"path":289,"stem":290},"Проблеми Спільного Стану — Race Condition та Data Race","/csharp/system-programming-windows/shared-state-problems","01.csharp/07.system-programming-windows/05.shared-state-problems",{"title":292,"path":293,"stem":294},"Проблеми Спільного Стану — Memory Model та volatile","/csharp/system-programming-windows/05a.shared-state-memory-model","01.csharp/07.system-programming-windows/05a.shared-state-memory-model",{"title":296,"path":297,"stem":298},"Синхронізація — Monitor, lock та еволюція примітивів","/csharp/system-programming-windows/synchronization-fundamentals","01.csharp/07.system-programming-windows/06.synchronization-fundamentals",{"title":300,"path":301,"stem":302},"Синхронізація — Наскрізний Приклад та Deadlock Detection","/csharp/system-programming-windows/06a.synchronization-walkthrough","01.csharp/07.system-programming-windows/06a.synchronization-walkthrough",{"title":304,"path":305,"stem":306},"Синхронізація — Mutex, Semaphore та Event-Based Primitives","/csharp/system-programming-windows/synchronization-advanced","01.csharp/07.system-programming-windows/07.synchronization-advanced",{"title":308,"path":309,"stem":310},"Синхронізація — Interlocked, Volatile та Lock-Free Структури","/csharp/system-programming-windows/07a.synchronization-advanced-walkthrough","01.csharp/07.system-programming-windows/07a.synchronization-advanced-walkthrough",{"title":312,"path":313,"stem":314},"Interlocked, CAS та Lock-Free Структури","/csharp/system-programming-windows/interlocked-cas-lockfree","01.csharp/07.system-programming-windows/08.interlocked-cas-lockfree",{"title":316,"path":317,"stem":318},"Volatile, Memory Model та Spinning","/csharp/system-programming-windows/08a.volatile-memory-model","01.csharp/07.system-programming-windows/08a.volatile-memory-model",{"title":320,"path":321,"stem":322},"ThreadPool — Пул Потоків для Ефективного Виконання","/csharp/system-programming-windows/thread-pool","01.csharp/07.system-programming-windows/09.thread-pool",{"title":324,"path":325,"stem":326},"ThreadPool — Просунуті Сценарії та Внутрішня Будова","/csharp/system-programming-windows/09a.thread-pool-advanced","01.csharp/07.system-programming-windows/09a.thread-pool-advanced",{"title":328,"path":329,"stem":330},"Concurrent та Immutable Collections","/csharp/system-programming-windows/concurrent-collections","01.csharp/07.system-programming-windows/10.concurrent-collections",{"title":332,"path":333,"stem":334},"TPL, Task та Композиція — Від Thread до Task","/csharp/system-programming-windows/tpl-parallel-plinq","01.csharp/07.system-programming-windows/11.tpl-parallel-plinq",{"title":336,"path":337,"stem":338},"Parallel Class та PLINQ — Data Parallelism","/csharp/system-programming-windows/11a.tpl-parallel-plinq-advanced","01.csharp/07.system-programming-windows/11a.tpl-parallel-plinq-advanced",{"title":340,"path":341,"stem":342},"Async/Await — Фундамент Асинхронного Програмування","/csharp/system-programming-windows/async-fundamentals","01.csharp/07.system-programming-windows/12.async-fundamentals",{"title":344,"path":345,"stem":346},"SynchronizationContext та ConfigureAwait — Контекст Виконання","/csharp/system-programming-windows/async-context-configureawait","01.csharp/07.system-programming-windows/13.async-context-configureawait",{"title":348,"path":349,"stem":350},"Async — Просунуті Паттерни","/csharp/system-programming-windows/async-advanced","01.csharp/07.system-programming-windows/14.async-advanced",{"title":352,"path":353,"stem":354},"System.Threading.Channels — Async Producer-Consumer","/csharp/system-programming-windows/channels","01.csharp/07.system-programming-windows/15.channels",{"title":356,"path":357,"stem":358},"Асинхронна Синхронізація","/csharp/system-programming-windows/async-synchronization","01.csharp/07.system-programming-windows/16.async-synchronization",{"title":360,"path":361,"stem":362},"Unsafe Code та Вказівники","/csharp/system-programming-windows/unsafe-code","01.csharp/07.system-programming-windows/17.unsafe-code",{"title":364,"path":365,"stem":366},"P/Invoke та Windows API — Міст між .NET та Native Code","/csharp/system-programming-windows/pinvoke-winapi","01.csharp/07.system-programming-windows/18.pinvoke-winapi",{"title":368,"path":369,"stem":370},"Реєстр Windows — Центральна База Конфігурації Системи","/csharp/system-programming-windows/windows-registry","01.csharp/07.system-programming-windows/19.windows-registry",{"title":372,"path":373,"stem":374},"Windows Hooks, Hotkeys та Services — Глибока Інтеграція з ОС","/csharp/system-programming-windows/windows-hooks-services","01.csharp/07.system-programming-windows/20.windows-hooks-services",{"title":376,"path":377,"stem":378},"Системне Програмування C# (Windows) — 07.system-programming-windows","/csharp/system-programming-windows/implementation_plan","01.csharp/07.system-programming-windows/implementation_plan",{"title":380,"icon":132,"path":381,"stem":382,"children":383,"page":59},"Io","/csharp/io","01.csharp/08.io",[384,388,392,396,400],{"title":385,"path":386,"stem":387},"8.1.1. Основи роботи з файловою системою","/csharp/io/file-system-basics","01.csharp/08.io/01.file-system-basics",{"title":389,"path":390,"stem":391},"8.1.2. Потоки (Streams) та Серіалізація Даних","/csharp/io/streams-serialization","01.csharp/08.io/02.streams-serialization",{"title":393,"path":394,"stem":395},"8.2.1. JSON Serialization з System.Text.Json","/csharp/io/json-serialization","01.csharp/08.io/03.json-serialization",{"title":397,"path":398,"stem":399},"8.2.2. XML Serialization та LINQ to XML","/csharp/io/xml-serialization","01.csharp/08.io/04.xml-serialization",{"title":401,"path":402,"stem":403},"8.2.3. Binary Serialization: MessagePack та Protocol Buffers","/csharp/io/binary-serialization","01.csharp/08.io/05.binary-serialization",{"title":405,"icon":132,"path":406,"stem":407,"children":408,"page":59},"Ado Net","/csharp/ado-net","01.csharp/09.ado-net",[409,413,417,421,425,429,433,437,441,445,449,453],{"title":410,"path":411,"stem":412},"9.1. Введення в ADO.NET","/csharp/ado-net/introduction-to-adonet","01.csharp/09.ado-net/01.introduction-to-adonet",{"title":414,"path":415,"stem":416},"9.2. Клас DbConnection — з'єднання з базою даних","/csharp/ado-net/connection","01.csharp/09.ado-net/02.connection",{"title":418,"path":419,"stem":420},"9.3. Клас DbCommand — виконання SQL-запитів","/csharp/ado-net/command-and-queries","01.csharp/09.ado-net/03.command-and-queries",{"title":422,"path":423,"stem":424},"9.4. Клас DbDataReader — ефективне читання даних","/csharp/ado-net/datareader","01.csharp/09.ado-net/04.datareader",{"title":426,"path":427,"stem":428},"9.5. Параметризовані запити та захист від SQL Injection","/csharp/ado-net/parameters-and-sql-injection","01.csharp/09.ado-net/05.parameters-and-sql-injection",{"title":430,"path":431,"stem":432},"9.6. Транзакції в ADO.NET","/csharp/ado-net/transactions","01.csharp/09.ado-net/06.transactions",{"title":434,"path":435,"stem":436},"9.7. DbProviderFactory — провайдер-незалежний код","/csharp/ado-net/provider-factory","01.csharp/09.ado-net/07.provider-factory",{"title":438,"path":439,"stem":440},"9.8. Асинхронний доступ до даних","/csharp/ado-net/async-data-access","01.csharp/09.ado-net/08.async-data-access",{"title":442,"path":443,"stem":444},"9.9. Від'єднаний режим: DataSet, DataTable, DataRow","/csharp/ado-net/disconnected-mode-dataset","01.csharp/09.ado-net/09.disconnected-mode-dataset",{"title":446,"path":447,"stem":448},"9.10. DataAdapter — міст між DataSet та базою даних","/csharp/ado-net/data-adapter","01.csharp/09.ado-net/10.data-adapter",{"title":450,"path":451,"stem":452},"9.11. Data Mapper та Repository: Архітектура доступу до даних","/csharp/ado-net/data-mapper-repository","01.csharp/09.ado-net/11.data-mapper-repository",{"title":454,"path":455,"stem":456},"9.12. Identity Map, Unit of Work та Specification Pattern","/csharp/ado-net/advanced-patterns","01.csharp/09.ado-net/12.advanced-patterns",{"title":458,"icon":255,"path":459,"stem":460,"children":461,"page":59},"Ef Core","/csharp/ef-core","01.csharp/10.ef-core",[462,466,470,474,478,482,486,490,494,498,502,506,510,514,518,522,526,532,538,542,546,550,554,558,562,566,570,574,578,582,586,590,594,598,602,606,610,614,618,622,626,630,634,638,642,646],{"title":463,"path":464,"stem":465},"Що таке ORM? Від SQL до об'єктів","/csharp/ef-core/what-is-orm","01.csharp/10.ef-core/01.what-is-orm",{"title":467,"path":468,"stem":469},"Перший проєкт — від нуля до CRUD","/csharp/ef-core/first-project","01.csharp/10.ef-core/02.first-project",{"title":471,"path":472,"stem":473},"DbContext — Серце EF Core","/csharp/ef-core/dbcontext-deep-dive","01.csharp/10.ef-core/03.dbcontext-deep-dive",{"title":475,"path":476,"stem":477},"Провайдери баз даних — Архітектура та Вибір СУБД","/csharp/ef-core/database-providers","01.csharp/10.ef-core/04.database-providers",{"title":479,"path":480,"stem":481},"Конвенції EF Core — Магія без конфігурації","/csharp/ef-core/conventions","01.csharp/10.ef-core/05.conventions",{"title":483,"path":484,"stem":485},"Fluent API та Data Annotations — Явна конфігурація моделі","/csharp/ef-core/fluent-api-vs-annotations","01.csharp/10.ef-core/06.fluent-api-vs-annotations",{"title":487,"path":488,"stem":489},"Зв'язки — One-to-One та One-to-Many","/csharp/ef-core/relationships-basics","01.csharp/10.ef-core/07.relationships-basics",{"title":491,"path":492,"stem":493},"Зв'язки Advanced — Many-to-Many та Складні Сценарії","/csharp/ef-core/relationships-advanced","01.csharp/10.ef-core/08.relationships-advanced",{"title":495,"path":496,"stem":497},"Властивості — Типи, Конвертери, Компаратори (Частина 1)","/csharp/ef-core/property-configuration-part1","01.csharp/10.ef-core/09.property-configuration-part1",{"title":499,"path":500,"stem":501},"Властивості — Value Comparers, Generators, Shadow Properties (Частина 2)","/csharp/ef-core/property-configuration-part2","01.csharp/10.ef-core/09.property-configuration-part2",{"title":503,"path":504,"stem":505},"Складні типи — Owned Types та Complex Types (Частина 1)","/csharp/ef-core/complex-types-owned-part1","01.csharp/10.ef-core/10.complex-types-owned-part1",{"title":507,"path":508,"stem":509},"Складні типи — Complex Types, Keyless Entities, Порівняння (Частина 2)","/csharp/ef-core/complex-types-owned-part2","01.csharp/10.ef-core/10.complex-types-owned-part2",{"title":511,"path":512,"stem":513},"JSON Columns — Складні дані у JSON (Частина 1)","/csharp/ef-core/json-columns-part1","01.csharp/10.ef-core/11.json-columns-part1",{"title":515,"path":516,"stem":517},"JSON Columns — Value Comparers, Індекси, Провайдери (Частина 2)","/csharp/ef-core/json-columns-part2","01.csharp/10.ef-core/11.json-columns-part2",{"title":519,"path":520,"stem":521},"Успадкування — Абстрактні класи та TPH (Частина 1)","/csharp/ef-core/inheritance-part1","01.csharp/10.ef-core/12.inheritance-part1",{"title":523,"path":524,"stem":525},"Успадкування — TPT, TPC та Порівняння Стратегій (Частина 2)","/csharp/ef-core/inheritance-part2","01.csharp/10.ef-core/12.inheritance-part2",{"title":527,"path":528,"stem":529,"children":530},"Індекси, Обмеження та Схема (Частина 1)","/csharp/ef-core/indexes-constraints-part1","01.csharp/10.ef-core/13.indexes-constraints-part1",[531],{"title":527,"path":528,"stem":529},{"title":533,"path":534,"stem":535,"children":536},"Індекси, Обмеження та Схема (Частина 2)","/csharp/ef-core/indexes-constraints-part2","01.csharp/10.ef-core/13.indexes-constraints-part2",[537],{"title":533,"path":534,"stem":535},{"title":539,"path":540,"stem":541},"Seed Data — Початкові Дані (Частина 1)","/csharp/ef-core/seeding-part1","01.csharp/10.ef-core/14.seeding-part1",{"title":543,"path":544,"stem":545},"Seed Data — SQL-скрипти, Bogus та Стратегії (Частина 2)","/csharp/ef-core/seeding-part2","01.csharp/10.ef-core/14.seeding-part2",{"title":547,"path":548,"stem":549},"Global Query Filters — Глобальні Фільтри (Частина 1)","/csharp/ef-core/global-query-filters-part1","01.csharp/10.ef-core/15.global-query-filters-part1",{"title":551,"path":552,"stem":553},"Global Query Filters — Підводні камені та Інтеграція (Частина 2)","/csharp/ef-core/global-query-filters-part2","01.csharp/10.ef-core/15.global-query-filters-part2",{"title":555,"path":556,"stem":557},"LINQ-запити в EF Core (Частина 1)","/csharp/ef-core/linq-queries-part1","01.csharp/10.ef-core/16.linq-queries-part1",{"title":559,"path":560,"stem":561},"LINQ-запити в EF Core (Частина 2)","/csharp/ef-core/linq-queries-part2","01.csharp/10.ef-core/16.linq-queries-part2",{"title":563,"path":564,"stem":565},"Завантаження Пов'язаних Даних (Частина 1)","/csharp/ef-core/loading-related-data-part1","01.csharp/10.ef-core/17.loading-related-data-part1",{"title":567,"path":568,"stem":569},"Завантаження Пов'язаних Даних (Частина 2)","/csharp/ef-core/loading-related-data-part2","01.csharp/10.ef-core/17.loading-related-data-part2",{"title":571,"path":572,"stem":573},"Raw SQL, Views та Stored Procedures (Частина 1)","/csharp/ef-core/raw-sql-part1","01.csharp/10.ef-core/18.raw-sql-part1",{"title":575,"path":576,"stem":577},"Raw SQL — Stored Procedures, DbFunction та Bulk Operations (Частина 2)","/csharp/ef-core/raw-sql-part2","01.csharp/10.ef-core/18.raw-sql-part2",{"title":579,"path":580,"stem":581},"Продвинуті Запити — Compiled Queries, Bulk та Оптимізація (Частина 1)","/csharp/ef-core/advanced-queries-part1","01.csharp/10.ef-core/19.advanced-queries-part1",{"title":583,"path":584,"stem":585},"Продвинуті Запити — Query Tags, Bulk та Interceptors (Частина 2)","/csharp/ef-core/advanced-queries-part2","01.csharp/10.ef-core/19.advanced-queries-part2",{"title":587,"path":588,"stem":589},"Change Tracker — Відстеження Змін (Частина 1)","/csharp/ef-core/change-tracking-part1","01.csharp/10.ef-core/20.change-tracking-part1",{"title":591,"path":592,"stem":593},"Change Tracker — Графи Об'єктів та Disconnected (Частина 2)","/csharp/ef-core/change-tracking-part2","01.csharp/10.ef-core/20.change-tracking-part2",{"title":595,"path":596,"stem":597},"Збереження Даних та Транзакції (Частина 1)","/csharp/ef-core/saving-data-part1","01.csharp/10.ef-core/21.saving-data-part1",{"title":599,"path":600,"stem":601},"Збереження Даних — Concurrency та Outbox (Частина 2)","/csharp/ef-core/saving-data-part2","01.csharp/10.ef-core/21.saving-data-part2",{"title":603,"path":604,"stem":605},"Конкурентність та Блокування (Частина 1)","/csharp/ef-core/concurrency-part1","01.csharp/10.ef-core/22.concurrency-part1",{"title":607,"path":608,"stem":609},"Конкурентність — Дедлоки та Queue Processing (Частина 2)","/csharp/ef-core/concurrency-part2","01.csharp/10.ef-core/22.concurrency-part2",{"title":611,"path":612,"stem":613},"Міграції в EF Core — Основи (Частина 1)","/csharp/ef-core/migrations-basics-part1","01.csharp/10.ef-core/23.migrations-basics-part1",{"title":615,"path":616,"stem":617},"Міграції в EF Core — Основи (Частина 2)","/csharp/ef-core/migrations-basics-part2","01.csharp/10.ef-core/23.migrations-basics-part2",{"title":619,"path":620,"stem":621},"Міграції — Просунуті Сценарії (Частина 1)","/csharp/ef-core/migrations-advanced-part1","01.csharp/10.ef-core/24.migrations-advanced-part1",{"title":623,"path":624,"stem":625},"Міграції — Просунуті Сценарії (Частина 2)","/csharp/ef-core/migrations-advanced-part2","01.csharp/10.ef-core/24.migrations-advanced-part2",{"title":627,"path":628,"stem":629},"Управління Схемою та Database-First (Частина 1)","/csharp/ef-core/schema-management-part1","01.csharp/10.ef-core/25.schema-management-part1",{"title":631,"path":632,"stem":633},"Управління Схемою та Database-First (Частина 2)","/csharp/ef-core/schema-management-part2","01.csharp/10.ef-core/25.schema-management-part2",{"title":635,"path":636,"stem":637},"Продуктивність EF Core — Основи (Частина 1)","/csharp/ef-core/performance-fundamentals-part1","01.csharp/10.ef-core/26.performance-fundamentals-part1",{"title":639,"path":640,"stem":641},"Interceptors в EF Core (Частина 1)","/csharp/ef-core/interceptors-part1","01.csharp/10.ef-core/29.interceptors-part1",{"title":643,"path":644,"stem":645},"Interceptors в EF Core — Connection, Transaction та Materialization (Частина 2)","/csharp/ef-core/interceptors-part2","01.csharp/10.ef-core/29.interceptors-part2",{"title":647,"path":648,"stem":649},"План вивчення Entity Framework Core — Повний курс","/csharp/ef-core/implementation_plan","01.csharp/10.ef-core/implementation_plan",{"title":651,"icon":652,"path":653,"stem":654,"children":655,"page":59},"ASP.NET","i-devicon-dotnetcore","/csharp/aspnet","01.csharp/11.aspnet",[656,730,791,869,927,941,967,1057,1111,1182,1212,1289],{"title":657,"icon":658,"path":659,"stem":660,"children":661,"page":59},"Minimal API","i-lucide-network","/csharp/aspnet/minimal-api","01.csharp/11.aspnet/01.minimal-api",[662,666,670,674,678,682,686,690,694,698,702,706,710,714,718,722,726],{"title":663,"path":664,"stem":665},"Вступ до ASP.NET та еволюція фреймворку","/csharp/aspnet/minimal-api/introduction","01.csharp/11.aspnet/01.minimal-api/01.introduction",{"title":667,"path":668,"stem":669},"Перший додаток на ASP.NET Core","/csharp/aspnet/minimal-api/first-application","01.csharp/11.aspnet/01.minimal-api/02.first-application",{"title":671,"path":672,"stem":673},"WebApplication, Builder та Dependency Injection","/csharp/aspnet/minimal-api/webapplication-builder","01.csharp/11.aspnet/01.minimal-api/03.webapplication-builder",{"title":675,"path":676,"stem":677},"Конвеєр запитів та Middleware","/csharp/aspnet/minimal-api/request-pipeline-middleware","01.csharp/11.aspnet/01.minimal-api/04.request-pipeline-middleware",{"title":679,"path":680,"stem":681},"Маршрутизація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/routing-basics","01.csharp/11.aspnet/01.minimal-api/05.routing-basics",{"title":683,"path":684,"stem":685},"Маршрутизація в ASP.NET Core: Розширені можливості","/csharp/aspnet/minimal-api/routing-advanced","01.csharp/11.aspnet/01.minimal-api/06.routing-advanced",{"title":687,"path":688,"stem":689},"Статичні файли в ASP.NET Core","/csharp/aspnet/minimal-api/static-files","01.csharp/11.aspnet/01.minimal-api/07.static-files",{"title":691,"path":692,"stem":693},"Статичні Активи: MapStaticAssets (ASP.NET Core 9.0)","/csharp/aspnet/minimal-api/static-assets","01.csharp/11.aspnet/01.minimal-api/08.static-assets",{"title":695,"path":696,"stem":697},"Конфігурація в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/configuration-fundamentals","01.csharp/11.aspnet/01.minimal-api/09.configuration-fundamentals",{"title":699,"path":700,"stem":701},"Конфігурація: Паттерн Options","/csharp/aspnet/minimal-api/configuration-options","01.csharp/11.aspnet/01.minimal-api/10.configuration-options",{"title":703,"path":704,"stem":705},"Логування в ASP.NET Core: Основи","/csharp/aspnet/minimal-api/logging-basics","01.csharp/11.aspnet/01.minimal-api/11.logging-basics",{"title":707,"path":708,"stem":709},"Логування: Serilog та Middleware","/csharp/aspnet/minimal-api/logging-advanced","01.csharp/11.aspnet/01.minimal-api/12.logging-advanced",{"title":711,"path":712,"stem":713},"Управління станом: HttpContext.Items та Cookies","/csharp/aspnet/minimal-api/state-management","01.csharp/11.aspnet/01.minimal-api/13.state-management",{"title":715,"path":716,"stem":717},"Стан сесії: Sessions","/csharp/aspnet/minimal-api/session-state","01.csharp/11.aspnet/01.minimal-api/14.session-state",{"title":719,"path":720,"stem":721},"Структура проєкту: від хаосу до архітектури","/csharp/aspnet/minimal-api/project-structure","01.csharp/11.aspnet/01.minimal-api/15.project-structure",{"title":723,"path":724,"stem":725},"Scalar у Minimal API: повний проєкт і Fluent OpenAPI","/csharp/aspnet/minimal-api/scalar-openapi-fluent","01.csharp/11.aspnet/01.minimal-api/16.scalar-openapi-fluent",{"title":727,"path":728,"stem":729},"Swagger / Swashbuckle у Minimal API: окремий класичний шлях","/csharp/aspnet/minimal-api/swagger-swashbuckle","01.csharp/11.aspnet/01.minimal-api/17.swagger-swashbuckle",{"title":731,"icon":658,"path":732,"stem":733,"children":734,"page":59},"API","/csharp/aspnet/api","01.csharp/11.aspnet/02.api",[735,739,743,747,751,755,759,763,767,771,775,779,783,787],{"title":736,"path":737,"stem":738},"Що таке API. Клієнт-серверна архітектура","/csharp/aspnet/api/what-is-api","01.csharp/11.aspnet/02.api/01.what-is-api",{"title":740,"path":741,"stem":742},"Формати даних: JSON, XML, TOML та бінарні формати","/csharp/aspnet/api/data-formats","01.csharp/11.aspnet/02.api/02.data-formats",{"title":744,"path":745,"stem":746},"Парадигми API та концепція REST","/csharp/aspnet/api/api-paradigms-rest","01.csharp/11.aspnet/02.api/03.api-paradigms-rest",{"title":748,"path":749,"stem":750},"HTTP-методи, статус-коди та заголовки","/csharp/aspnet/api/http-methods-status-codes","01.csharp/11.aspnet/02.api/04.http-methods-status-codes",{"title":752,"path":753,"stem":754},"Організація HTTP API за принципами REST","/csharp/aspnet/api/rest-organizing","01.csharp/11.aspnet/02.api/05.rest-organizing",{"title":756,"path":757,"stem":758},"Номенклатура URL та CRUD-операції","/csharp/aspnet/api/url-nomenclature-crud","01.csharp/11.aspnet/02.api/06.url-nomenclature-crud",{"title":760,"path":761,"stem":762},"Правила дизайну: іменування та стандарти","/csharp/aspnet/api/api-design-naming","01.csharp/11.aspnet/02.api/07.api-design-naming",{"title":764,"path":765,"stem":766},"Валідація, ліміти та обробка помилок","/csharp/aspnet/api/api-design-validation","01.csharp/11.aspnet/02.api/08.api-design-validation",{"title":768,"path":769,"stem":770},"Обробка помилок у Minimal API","/csharp/aspnet/api/error-handling-http","01.csharp/11.aspnet/02.api/09.error-handling-http",{"title":772,"path":773,"stem":774},"Ідемпотентність та синхронізація стану","/csharp/aspnet/api/idempotency-sync","01.csharp/11.aspnet/02.api/10.idempotency-sync",{"title":776,"path":777,"stem":778},"Пагінація та організація списків","/csharp/aspnet/api/pagination-lists","01.csharp/11.aspnet/02.api/11.pagination-lists",{"title":780,"path":781,"stem":782},"Безпека API, кешування та інтернаціоналізація","/csharp/aspnet/api/security-auth","01.csharp/11.aspnet/02.api/12.security-auth",{"title":784,"path":785,"stem":786},"Процес проєктування API та документування","/csharp/aspnet/api/api-design-process","01.csharp/11.aspnet/02.api/13.api-design-process",{"title":788,"path":789,"stem":790},"OpenAPI: контракт, специфікація та документація API","/csharp/aspnet/api/openapi","01.csharp/11.aspnet/02.api/14.openapi",{"title":792,"icon":793,"path":794,"stem":795,"children":796,"page":59},"Auth","i-lucide-shield-check","/csharp/aspnet/auth","01.csharp/11.aspnet/03.auth",[797,801,805,809,813,817,821,825,829,833,837,841,845,849,853,857,861,865],{"title":798,"path":799,"stem":800},"Основи аутентифікації та авторизації","/csharp/aspnet/auth/auth-fundamentals","01.csharp/11.aspnet/03.auth/01.auth-fundamentals",{"title":802,"path":803,"stem":804},"JWT-аутентифікація","/csharp/aspnet/auth/jwt-authentication","01.csharp/11.aspnet/03.auth/02.jwt-authentication",{"title":806,"path":807,"stem":808},"Авторизація: ролі, політики та resource-based доступ","/csharp/aspnet/auth/authorization-policies","01.csharp/11.aspnet/03.auth/03.authorization-policies",{"title":810,"path":811,"stem":812},"Cookie-аутентифікація та ASP.NET Core Identity","/csharp/aspnet/auth/cookie-auth-identity","01.csharp/11.aspnet/03.auth/04.cookie-auth-identity",{"title":814,"path":815,"stem":816},"JWT + Refresh Tokens (HttpOnly Cookie)","/csharp/aspnet/auth/04b.identity-auth-jwt","01.csharp/11.aspnet/03.auth/04b.identity-auth-jwt",{"title":818,"path":819,"stem":820},"Identity: Підтвердження Email та Скидання Пароля","/csharp/aspnet/auth/identity-email-confirmation","01.csharp/11.aspnet/03.auth/05.identity-email-confirmation",{"title":822,"path":823,"stem":824},"Identity: Двофакторна Аутентифікація (2FA)","/csharp/aspnet/auth/identity-two-factor","01.csharp/11.aspnet/03.auth/06.identity-two-factor",{"title":826,"path":827,"stem":828},"Identity: Внутрішня Архітектура та Кастомізація","/csharp/aspnet/auth/identity-internals","01.csharp/11.aspnet/03.auth/07.identity-internals",{"title":830,"path":831,"stem":832},"OAuth 2.0 та зовнішні провайдери","/csharp/aspnet/auth/oauth-external-providers","01.csharp/11.aspnet/03.auth/08.oauth-external-providers",{"title":834,"path":835,"stem":836},"Безпека на практиці: CORS, HTTPS та захист від атак","/csharp/aspnet/auth/security-hardening","01.csharp/11.aspnet/03.auth/09.security-hardening",{"title":838,"path":839,"stem":840},"Теорія OAuth 2.0: Поняття, Аналогії та Флоу","/csharp/aspnet/auth/oauth-theory","01.csharp/11.aspnet/03.auth/10.oauth-theory",{"title":842,"path":843,"stem":844},"OIDC, OAuth 2.0 та Keycloak в ASP.NET Core","/csharp/aspnet/auth/oidc-keycloak","01.csharp/11.aspnet/03.auth/10.oidc-keycloak",{"title":846,"path":847,"stem":848},"API Keys аутентифікація в ASP.NET Core","/csharp/aspnet/auth/api-keys","01.csharp/11.aspnet/03.auth/11.api-keys",{"title":850,"path":851,"stem":852},"Rate Limiting та Throttling в ASP.NET Core","/csharp/aspnet/auth/rate-limiting","01.csharp/11.aspnet/03.auth/12.rate-limiting",{"title":854,"path":855,"stem":856},"Refresh Token Rotation в ASP.NET Core","/csharp/aspnet/auth/refresh-token-rotation","01.csharp/11.aspnet/03.auth/13.refresh-token-rotation",{"title":858,"path":859,"stem":860},"Certificate Authentication та mTLS в ASP.NET Core","/csharp/aspnet/auth/certificate-auth","01.csharp/11.aspnet/03.auth/14.certificate-auth",{"title":862,"path":863,"stem":864},"RBAC, ABAC та ReBAC в ASP.NET Core","/csharp/aspnet/auth/rbac-abac-rebac","01.csharp/11.aspnet/03.auth/15.rbac-abac-rebac",{"title":866,"path":867,"stem":868},"Multi-tenancy та ізоляція даних в ASP.NET Core","/csharp/aspnet/auth/multi-tenancy","01.csharp/11.aspnet/03.auth/16.multi-tenancy",{"title":870,"icon":871,"path":872,"stem":873,"children":874,"page":59},"Нотифікації","i-lucide-bell","/csharp/aspnet/notifications","01.csharp/11.aspnet/04.notifications",[875,879,883,887,891,895,899,903,907,911,915,919,923],{"title":876,"path":877,"stem":878},"In-App нотифікації через базу даних","/csharp/aspnet/notifications/in-app-database-notifications","01.csharp/11.aspnet/04.notifications/01.in-app-database-notifications",{"title":880,"path":881,"stem":882},"Polling: Регулярний запит оновлень","/csharp/aspnet/notifications/polling","01.csharp/11.aspnet/04.notifications/02.polling",{"title":884,"path":885,"stem":886},"Server-Sent Events: Однострімовий push від сервера","/csharp/aspnet/notifications/server-sent-events","01.csharp/11.aspnet/04.notifications/03.server-sent-events",{"title":888,"path":889,"stem":890},"WebSockets: Двостороннє з'єднання в реальному часі","/csharp/aspnet/notifications/websockets","01.csharp/11.aspnet/04.notifications/04.websockets",{"title":892,"path":893,"stem":894},"SignalR: Абстракція над транспортами реального часу","/csharp/aspnet/notifications/signalr","01.csharp/11.aspnet/04.notifications/05.signalr",{"title":896,"path":897,"stem":898},"Background Services: Фонові задачі в ASP.NET Core","/csharp/aspnet/notifications/background-services","01.csharp/11.aspnet/04.notifications/06.background-services",{"title":900,"path":901,"stem":902},"Web Push нотифікації","/csharp/aspnet/notifications/web-push","01.csharp/11.aspnet/04.notifications/07.web-push",{"title":904,"path":905,"stem":906},"Email нотифікації","/csharp/aspnet/notifications/email-notifications","01.csharp/11.aspnet/04.notifications/08.email-notifications",{"title":908,"path":909,"stem":910},"Порівняння підходів: Як вибрати правильну технологію нотифікацій","/csharp/aspnet/notifications/choosing-the-right-approach","01.csharp/11.aspnet/04.notifications/09.choosing-the-right-approach",{"title":912,"path":913,"stem":914},"Hangfire: Надійне планування фонових задач","/csharp/aspnet/notifications/hangfire","01.csharp/11.aspnet/04.notifications/10.hangfire",{"title":916,"path":917,"stem":918},"Практика: Конвертація зображень у WebP через Hangfire","/csharp/aspnet/notifications/hangfire-image-webp","01.csharp/11.aspnet/04.notifications/11.hangfire-image-webp",{"title":920,"path":921,"stem":922},"Практика: Підготовка відео до HLS-стрімінгу через Hangfire","/csharp/aspnet/notifications/hangfire-video-hls","01.csharp/11.aspnet/04.notifications/12.hangfire-video-hls",{"title":924,"path":925,"stem":926},"Telegram-нотифікації: від одного повідомлення до масових розсилок і мульти-канального підходу","/csharp/aspnet/notifications/telegram-notifications","01.csharp/11.aspnet/04.notifications/13.telegram-notifications",{"title":928,"icon":929,"path":930,"stem":931,"children":932,"page":59},"Інтернаціоналізація","i-lucide-languages","/csharp/aspnet/i18n","01.csharp/11.aspnet/05.i18n",[933,937],{"title":934,"path":935,"stem":936},"Інтернаціоналізація (i18n) у Minimal API: від A до Я","/csharp/aspnet/i18n/internationalization","01.csharp/11.aspnet/05.i18n/01.internationalization",{"title":938,"path":939,"stem":940},"Humanizer: людиномовні рядки у .NET","/csharp/aspnet/i18n/humanizer","01.csharp/11.aspnet/05.i18n/02.humanizer",{"title":942,"icon":943,"path":944,"stem":945,"children":946,"page":59},"Кешування","i-lucide-layers","/csharp/aspnet/caching","01.csharp/11.aspnet/06.caching",[947,951,955,959,963],{"title":948,"path":949,"stem":950},"Огляд кешування: чотири рівні і коли що обирати","/csharp/aspnet/caching/caching","01.csharp/11.aspnet/06.caching/01.caching",{"title":952,"path":953,"stem":954},"IMemoryCache: кеш в оперативній пам'яті","/csharp/aspnet/caching/memory-cache","01.csharp/11.aspnet/06.caching/02.memory-cache",{"title":956,"path":957,"stem":958},"IDistributedCache і Redis: розподілений кеш","/csharp/aspnet/caching/distributed-cache","01.csharp/11.aspnet/06.caching/03.distributed-cache",{"title":960,"path":961,"stem":962},"Response Cache: HTTP-кешування через Cache-Control","/csharp/aspnet/caching/response-cache","01.csharp/11.aspnet/06.caching/04.response-cache",{"title":964,"path":965,"stem":966},"Output Cache: серверний кеш HTTP-відповідей (.NET 7+)","/csharp/aspnet/caching/output-cache","01.csharp/11.aspnet/06.caching/05.output-cache",{"title":968,"icon":969,"path":970,"stem":971,"children":972,"page":59},"Тестування","i-lucide-test-tube","/csharp/aspnet/testing","01.csharp/11.aspnet/07.testing",[973,977,981,985,989,993,997,1001,1005,1009,1013,1017,1021,1025,1029,1033,1037,1041,1045,1049,1053],{"title":974,"path":975,"stem":976},"Що таке тестування? Від інтуїції до науки","/csharp/aspnet/testing/what-is-testing","01.csharp/11.aspnet/07.testing/01.what-is-testing",{"title":978,"path":979,"stem":980},"Піраміда тестування — Стратегія, а не Догма","/csharp/aspnet/testing/testing-pyramid","01.csharp/11.aspnet/07.testing/02.testing-pyramid",{"title":982,"path":983,"stem":984},"Дві Школи Тестування — Лондон проти Детройту","/csharp/aspnet/testing/testing-schools","01.csharp/11.aspnet/07.testing/03.testing-schools",{"title":986,"path":987,"stem":988},"TDD та BDD — Тести як Дизайн-інструмент","/csharp/aspnet/testing/tdd-and-bdd","01.csharp/11.aspnet/07.testing/04.tdd-and-bdd",{"title":990,"path":991,"stem":992},"Що саме тестувати — Техніки аналізу та Циклomatична складність","/csharp/aspnet/testing/what-to-test","01.csharp/11.aspnet/07.testing/05.what-to-test",{"title":994,"path":995,"stem":996},"Тестові Фреймворки — Навіщо вони і що всередині","/csharp/aspnet/testing/test-frameworks","01.csharp/11.aspnet/07.testing/06.test-frameworks",{"title":998,"path":999,"stem":1000},"xUnit — Факти, Теорії та Lifecycle тестів","/csharp/aspnet/testing/xunit-basics","01.csharp/11.aspnet/07.testing/07.xunit-basics",{"title":1002,"path":1003,"stem":1004},"xUnit Advanced — Fixtures, Кастомізація та Розширення","/csharp/aspnet/testing/xunit-advanced","01.csharp/11.aspnet/07.testing/08.xunit-advanced",{"title":1006,"path":1007,"stem":1008},"Moq — Глибоке занурення в мокування","/csharp/aspnet/testing/mocking-with-moq","01.csharp/11.aspnet/07.testing/09.mocking-with-moq",{"title":1010,"path":1011,"stem":1012},"Тестування Баз Даних — EF Core, SQLite та Testcontainers","/csharp/aspnet/testing/database-testing","01.csharp/11.aspnet/07.testing/10.database-testing",{"title":1014,"path":1015,"stem":1016},"Integration Testing — Частина 1 [Теорія та WebApplicationFactory]","/csharp/aspnet/testing/integration-testing","01.csharp/11.aspnet/07.testing/11.integration-testing",{"title":1018,"path":1019,"stem":1020},"Інтеграційне тестування — Практика","/csharp/aspnet/testing/11a.integration-testing-practice","01.csharp/11.aspnet/07.testing/11a.integration-testing-practice",{"title":1022,"path":1023,"stem":1024},"Integration Testing — Частина 2 [Просунуті Сценарії та Testcontainers]","/csharp/aspnet/testing/integration-testing-advanced","01.csharp/11.aspnet/07.testing/12.integration-testing-advanced",{"title":1026,"path":1027,"stem":1028},"Професійний Postman: Колекції, Змінні та GitHub Інтеграція","/csharp/aspnet/testing/postman-professional","01.csharp/11.aspnet/07.testing/13.postman-professional",{"title":1030,"path":1031,"stem":1032},"HttpClient у Тестах Частина 1: Архітектура та MockHttpMessageHandler","/csharp/aspnet/testing/httpclient-testing","01.csharp/11.aspnet/07.testing/14.httpclient-testing",{"title":1034,"path":1035,"stem":1036},"HttpClient у Тестах Частина 2: WireMock.Net та Resilience","/csharp/aspnet/testing/wiremock-net","01.csharp/11.aspnet/07.testing/15.wiremock-net",{"title":1038,"path":1039,"stem":1040},"Патерни та Анти-патерни Тестування: Test Smells","/csharp/aspnet/testing/testing-patterns","01.csharp/11.aspnet/07.testing/16.testing-patterns",{"title":1042,"path":1043,"stem":1044},"Просунуті інструменти: Time, Snapshots та Властивості","/csharp/aspnet/testing/advanced-testing-tools","01.csharp/11.aspnet/07.testing/17.advanced-testing-tools",{"title":1046,"path":1047,"stem":1048},"Тестування Архітектури з NetArchTest","/csharp/aspnet/testing/architecture-testing","01.csharp/11.aspnet/07.testing/18.architecture-testing",{"title":1050,"path":1051,"stem":1052},"Тестування Продуктивності: BenchmarkDotNet, NBomber та k6","/csharp/aspnet/testing/performance-testing","01.csharp/11.aspnet/07.testing/19.performance-testing",{"title":1054,"path":1055,"stem":1056},"Залишок плану для курсу \"Тестування ASP.NET Minimal API\"","/csharp/aspnet/testing/remaining_plan","01.csharp/11.aspnet/07.testing/remaining_plan",{"title":1058,"icon":1059,"path":1060,"stem":1061,"children":1062,"page":59},"Платежі","i-lucide-credit-card","/csharp/aspnet/payments","01.csharp/11.aspnet/08.payments",[1063,1067,1071,1075,1079,1083,1087,1091,1095,1099,1103,1107],{"title":1064,"path":1065,"stem":1066},"Основи платіжної інфраструктури","/csharp/aspnet/payments/payment-fundamentals","01.csharp/11.aspnet/08.payments/01.payment-fundamentals",{"title":1068,"path":1069,"stem":1070},"Методи оплати в Україні","/csharp/aspnet/payments/payment-methods-ukraine","01.csharp/11.aspnet/08.payments/02.payment-methods-ukraine",{"title":1072,"path":1073,"stem":1074},"PCI DSS та безпека платежів","/csharp/aspnet/payments/pci-dss-security","01.csharp/11.aspnet/08.payments/03.pci-dss-security",{"title":1076,"path":1077,"stem":1078},"Архітектура платіжної підсистеми","/csharp/aspnet/payments/payment-architecture","01.csharp/11.aspnet/08.payments/04.payment-architecture",{"title":1080,"path":1081,"stem":1082},"Інтеграція LiqPay (ПриватБанк)","/csharp/aspnet/payments/liqpay-integration","01.csharp/11.aspnet/08.payments/05.liqpay-integration",{"title":1084,"path":1085,"stem":1086},"Інтеграція Monobank Acquiring API","/csharp/aspnet/payments/monobank-acquiring","01.csharp/11.aspnet/08.payments/06.monobank-acquiring",{"title":1088,"path":1089,"stem":1090},"Інтеграція Stripe","/csharp/aspnet/payments/stripe-integration","01.csharp/11.aspnet/08.payments/07.stripe-integration",{"title":1092,"path":1093,"stem":1094},"Webhooks — глибоке занурення","/csharp/aspnet/payments/webhooks-deep-dive","01.csharp/11.aspnet/08.payments/08.webhooks-deep-dive",{"title":1096,"path":1097,"stem":1098},"Підписки та рекурентні платежі","/csharp/aspnet/payments/subscriptions-recurring","01.csharp/11.aspnet/08.payments/09.subscriptions-recurring",{"title":1100,"path":1101,"stem":1102},"Повернення коштів та диспути","/csharp/aspnet/payments/refunds-disputes","01.csharp/11.aspnet/08.payments/10.refunds-disputes",{"title":1104,"path":1105,"stem":1106},"Тестування платіжних інтеграцій","/csharp/aspnet/payments/testing-payments","01.csharp/11.aspnet/08.payments/11.testing-payments",{"title":1108,"path":1109,"stem":1110},"Чекліст виходу в Production","/csharp/aspnet/payments/production-checklist","01.csharp/11.aspnet/08.payments/12.production-checklist",{"title":1112,"icon":1113,"items":1114,"path":1127,"stem":1128,"children":1129,"page":59},"Популярні бібліотеки","lucide:box",[1115,1116,1117,1118,1119,1120,1121,1122,1123,1124,1125,1126],"01.fluent-validation","02.mapster","03.erroror-result-pattern","04.serilog","05.mediatr","06.polly","07.health-checks","08.feature-management","09.fluent-email","10.quest-pdf","11.bogus","12.humanizer-guard","/csharp/aspnet/libraries","01.csharp/11.aspnet/09.libraries",[1130,1134,1138,1142,1146,1150,1154,1158,1162,1166,1170,1174,1178],{"title":1131,"path":1132,"stem":1133},"Валідація з FluentValidation в ASP.NET Core","/csharp/aspnet/libraries/fluent-validation","01.csharp/11.aspnet/09.libraries/01.fluent-validation",{"title":1135,"path":1136,"stem":1137},"Маппінг об","/csharp/aspnet/libraries/mapster","01.csharp/11.aspnet/09.libraries/02.mapster",{"title":1139,"path":1140,"stem":1141},"Обробка помилок з ErrorOr та Result Pattern в ASP.NET Core","/csharp/aspnet/libraries/erroror-result-pattern","01.csharp/11.aspnet/09.libraries/03.erroror-result-pattern",{"title":1143,"path":1144,"stem":1145},"Структуроване логування з Serilog в ASP.NET Core","/csharp/aspnet/libraries/serilog","01.csharp/11.aspnet/09.libraries/04.serilog",{"title":1147,"path":1148,"stem":1149},"CQRS та Mediator з MediatR в ASP.NET Core","/csharp/aspnet/libraries/mediatr","01.csharp/11.aspnet/09.libraries/05.mediatr",{"title":1151,"path":1152,"stem":1153},"Відмовостійкість з Polly в ASP.NET Core","/csharp/aspnet/libraries/polly","01.csharp/11.aspnet/09.libraries/06.polly",{"title":1155,"path":1156,"stem":1157},"Health Checks в ASP.NET Core","/csharp/aspnet/libraries/health-checks","01.csharp/11.aspnet/09.libraries/07.health-checks",{"title":1159,"path":1160,"stem":1161},"Feature Management та Feature Flags в ASP.NET Core","/csharp/aspnet/libraries/feature-management","01.csharp/11.aspnet/09.libraries/08.feature-management",{"title":1163,"path":1164,"stem":1165},"Відправка Email з FluentEmail в ASP.NET Core","/csharp/aspnet/libraries/fluent-email","01.csharp/11.aspnet/09.libraries/09.fluent-email",{"title":1167,"path":1168,"stem":1169},"Генерація PDF з QuestPDF в ASP.NET Core","/csharp/aspnet/libraries/quest-pdf","01.csharp/11.aspnet/09.libraries/10.quest-pdf",{"title":1171,"path":1172,"stem":1173},"Генерація тестових даних з Bogus в ASP.NET Core","/csharp/aspnet/libraries/bogus","01.csharp/11.aspnet/09.libraries/11.bogus",{"title":1175,"path":1176,"stem":1177},"Humanizer та Guard Clauses в ASP.NET Core","/csharp/aspnet/libraries/humanizer-guard","01.csharp/11.aspnet/09.libraries/12.humanizer-guard",{"title":1179,"path":1180,"stem":1181},"План модуля 10.libraries — Популярні бібліотеки ASP.NET","/csharp/aspnet/libraries/plan","01.csharp/11.aspnet/09.libraries/plan",{"title":1183,"icon":1184,"path":1185,"stem":1186,"children":1187,"page":59},"Razor Pages","i-lucide-layout-template","/csharp/aspnet/razor-pages","01.csharp/11.aspnet/10.razor-pages",[1188,1192,1196,1200,1204,1208],{"title":1189,"path":1190,"stem":1191},"Від Minimal API до Razor Pages: концептуальний перехід","/csharp/aspnet/razor-pages/from-minimal-api","01.csharp/11.aspnet/10.razor-pages/01.from-minimal-api",{"title":1193,"path":1194,"stem":1195},"PageModel: логіка сторінки Razor Pages","/csharp/aspnet/razor-pages/page-model","01.csharp/11.aspnet/10.razor-pages/02.page-model",{"title":1197,"path":1198,"stem":1199},"Razor синтаксис: шаблонізатор у .cshtml","/csharp/aspnet/razor-pages/razor-syntax","01.csharp/11.aspnet/10.razor-pages/03.razor-syntax",{"title":1201,"path":1202,"stem":1203},"Tag Helpers: типізований HTML","/csharp/aspnet/razor-pages/tag-helpers","01.csharp/11.aspnet/10.razor-pages/04.tag-helpers",{"title":1205,"path":1206,"stem":1207},"Форми і валідація: повний цикл обробки даних","/csharp/aspnet/razor-pages/forms-validation","01.csharp/11.aspnet/10.razor-pages/05.forms-validation",{"title":1209,"path":1210,"stem":1211},"Практичний проєкт: TaskManager на Razor Pages","/csharp/aspnet/razor-pages/project-task-manager","01.csharp/11.aspnet/10.razor-pages/06.project-task-manager",{"title":1213,"path":1214,"stem":1215,"children":1216,"page":59},"ASP.NET Core MVC","/csharp/aspnet/mvc","01.csharp/11.aspnet/11.mvc",[1217,1221,1225,1229,1233,1237,1241,1245,1249,1253,1257,1261,1265,1269,1273,1277,1281,1285],{"title":1218,"path":1219,"stem":1220},"Патерн MVC: архітектура, що змінила веб","/csharp/aspnet/mvc/mvc-pattern","01.csharp/11.aspnet/11.mvc/01.mvc-pattern",{"title":1222,"path":1223,"stem":1224},"Від Razor Pages до MVC: концептуальний перехід","/csharp/aspnet/mvc/from-razor-pages","01.csharp/11.aspnet/11.mvc/02.from-razor-pages",{"title":1226,"path":1227,"stem":1228},"Controllers та Actions: серце MVC","/csharp/aspnet/mvc/controllers-actions","01.csharp/11.aspnet/11.mvc/03.controllers-actions",{"title":1230,"path":1231,"stem":1232},"Маршрутизація в MVC: Convention vs Attribute Routing","/csharp/aspnet/mvc/routing-mvc","01.csharp/11.aspnet/11.mvc/04.routing-mvc",{"title":1234,"path":1235,"stem":1236},"Model Binding: від HTTP до C#","/csharp/aspnet/mvc/model-binding","01.csharp/11.aspnet/11.mvc/05.model-binding",{"title":1238,"path":1239,"stem":1240},"Views, ViewData, ViewBag, TempData і ViewModel","/csharp/aspnet/mvc/views-viewdata-tempdata","01.csharp/11.aspnet/11.mvc/06.views-viewdata-tempdata",{"title":1242,"path":1243,"stem":1244},"Filters: аспектно-орієнтоване програмування в MVC","/csharp/aspnet/mvc/filters","01.csharp/11.aspnet/11.mvc/07.filters",{"title":1246,"path":1247,"stem":1248},"Areas: структурування великих застосунків","/csharp/aspnet/mvc/areas","01.csharp/11.aspnet/11.mvc/08.areas",{"title":1250,"path":1251,"stem":1252},"View Components: повторювані незалежні блоки UI","/csharp/aspnet/mvc/view-components","01.csharp/11.aspnet/11.mvc/09.view-components",{"title":1254,"path":1255,"stem":1256},"Display та Editor Templates","/csharp/aspnet/mvc/display-editor-templates","01.csharp/11.aspnet/11.mvc/10.display-editor-templates",{"title":1258,"path":1259,"stem":1260},"Валідація: IValidatableObject та FluentValidation","/csharp/aspnet/mvc/validation-advanced","01.csharp/11.aspnet/11.mvc/11.validation-advanced",{"title":1262,"path":1263,"stem":1264},"HTMX: інтерактивність через HTML-атрибути","/csharp/aspnet/mvc/htmx","01.csharp/11.aspnet/11.mvc/12.htmx",{"title":1266,"path":1267,"stem":1268},"HTMX у ASP.NET Core MVC: серверна інтеграція","/csharp/aspnet/mvc/ajax-htmx-mvc","01.csharp/11.aspnet/11.mvc/13.ajax-htmx-mvc",{"title":1270,"path":1271,"stem":1272},"Практичний проєкт: Каталог товарів з HTMX","/csharp/aspnet/mvc/htmx-project","01.csharp/11.aspnet/11.mvc/14.htmx-project",{"title":1274,"path":1275,"stem":1276},"Завантаження та обробка файлів","/csharp/aspnet/mvc/file-upload","01.csharp/11.aspnet/11.mvc/15.file-upload",{"title":1278,"path":1279,"stem":1280},"Глобалізація та Локалізація MVC","/csharp/aspnet/mvc/globalization-localization","01.csharp/11.aspnet/11.mvc/16.globalization-localization",{"title":1282,"path":1283,"stem":1284},"Підсумковий проєкт: Блог-платформа","/csharp/aspnet/mvc/mvc-project","01.csharp/11.aspnet/11.mvc/17.mvc-project",{"title":1286,"path":1287,"stem":1288},"План курсу: ASP.NET Core MVC","/csharp/aspnet/mvc/plan","01.csharp/11.aspnet/11.mvc/plan",{"title":1290,"path":1291,"stem":1292,"children":1293,"page":59},"Web Api","/csharp/aspnet/web-api","01.csharp/11.aspnet/12.web-api",[1294,1298,1302,1306,1310,1314,1318,1322,1326,1330,1334,1338,1342],{"title":1295,"path":1296,"stem":1297},"Від Minimal API до Controller-based API","/csharp/aspnet/web-api/from-minimal-api-to-controllers","01.csharp/11.aspnet/12.web-api/01.from-minimal-api-to-controllers",{"title":1299,"path":1300,"stem":1301},"ControllerBase, ActionResult\u003CT> та Response Types","/csharp/aspnet/web-api/controller-base-actionresult","01.csharp/11.aspnet/12.web-api/02.controller-base-actionresult",{"title":1303,"path":1304,"stem":1305},"Content Negotiation - JSON, XML та власні форматери","/csharp/aspnet/web-api/content-negotiation","01.csharp/11.aspnet/12.web-api/03.content-negotiation",{"title":1307,"path":1308,"stem":1309},"Версіонування API","/csharp/aspnet/web-api/api-versioning","01.csharp/11.aspnet/12.web-api/04.api-versioning",{"title":1311,"path":1312,"stem":1313},"ProblemDetails та структурована обробка помилок","/csharp/aspnet/web-api/problemdetails-error-handling","01.csharp/11.aspnet/12.web-api/05.problemdetails-error-handling",{"title":1315,"path":1316,"stem":1317},"Фільтри у Web API контексті","/csharp/aspnet/web-api/filters-for-api","01.csharp/11.aspnet/12.web-api/06.filters-for-api",{"title":1319,"path":1320,"stem":1321},"Пагінація, фільтрація та сортування","/csharp/aspnet/web-api/pagination-filtering-sorting","01.csharp/11.aspnet/12.web-api/07.pagination-filtering-sorting",{"title":1323,"path":1324,"stem":1325},"HATEOAS та Resource Expansion","/csharp/aspnet/web-api/hateoas-resource-expansion","01.csharp/11.aspnet/12.web-api/08.hateoas-resource-expansion",{"title":1327,"path":1328,"stem":1329},"Гібридна архітектура - Minimal API + Controllers","/csharp/aspnet/web-api/minimal-api-vs-controllers-hybrid","01.csharp/11.aspnet/12.web-api/09.minimal-api-vs-controllers-hybrid",{"title":1331,"path":1332,"stem":1333},"Документація API - Swashbuckle, NSwag та генерація клієнтів","/csharp/aspnet/web-api/api-documentation-generation","01.csharp/11.aspnet/12.web-api/10.api-documentation-generation",{"title":1335,"path":1336,"stem":1337},"Health Checks та моніторинг API","/csharp/aspnet/web-api/health-checks-monitoring","01.csharp/11.aspnet/12.web-api/11.health-checks-monitoring",{"title":1339,"path":1340,"stem":1341},"Підсумковий проєкт - Production-Ready REST API","/csharp/aspnet/web-api/web-api-project","01.csharp/11.aspnet/12.web-api/12.web-api-project",{"title":1343,"path":1344,"stem":1345},"План курсу: ASP.NET Core Web API (Controllers)","/csharp/aspnet/web-api/plan","01.csharp/11.aspnet/12.web-api/plan",{"title":1347,"icon":1348,"path":1349,"stem":1350,"children":1351,"page":59},"Desktop UI","i-lucide-app-window","/csharp/desktop-ui","01.csharp/12.desktop-ui",[1352,1356,1360,1364,1368,1372,1376,1380,1384,1388,1392,1396,1400,1404,1408,1412,1416,1420,1424,1428,1432,1436,1440,1444,1448,1452,1456,1460,1464,1468,1472,1476,1480,1484,1488,1492,1496,1500,1504,1508,1512,1516,1520,1524,1528,1532,1536,1540,1544,1548,1552,1556,1560,1564,1568,1572,1576,1580,1584,1588,1592,1596,1600,1604,1608,1612,1616,1620,1624,1628,1632],{"title":1353,"path":1354,"stem":1355},"Що таке десктопна розробка?","/csharp/desktop-ui/what-is-desktop-dev","01.csharp/12.desktop-ui/01.what-is-desktop-dev",{"title":1357,"path":1358,"stem":1359},"Архітектура WPF — як влаштований графічний інтерфейс","/csharp/desktop-ui/wpf-architecture","01.csharp/12.desktop-ui/02.wpf-architecture",{"title":1361,"path":1362,"stem":1363},"Перший WPF-проєкт — від нуля до вікна","/csharp/desktop-ui/first-wpf-app","01.csharp/12.desktop-ui/03.first-wpf-app",{"title":1365,"path":1366,"stem":1367},"Перший Avalonia-проєкт: WPF для всіх платформ","/csharp/desktop-ui/03a.first-avalonia-app","01.csharp/12.desktop-ui/03a.first-avalonia-app",{"title":1369,"path":1370,"stem":1371},"XAML: декларативний інтерфейс","/csharp/desktop-ui/xaml-basics","01.csharp/12.desktop-ui/04.xaml-basics",{"title":1373,"path":1374,"stem":1375},"Fluent UI у WPF — сучасний дизайн Windows 11","/csharp/desktop-ui/04a.wpf-fluent-ui","01.csharp/12.desktop-ui/04a.wpf-fluent-ui",{"title":1377,"path":1378,"stem":1379},"WPF UI — сучасна бібліотека Fluent контролів","/csharp/desktop-ui/04b.wpf-ui-library","01.csharp/12.desktop-ui/04b.wpf-ui-library",{"title":1381,"path":1382,"stem":1383},"HandyControl — велика бібліотека UI контролів для WPF","/csharp/desktop-ui/04c.handycontrol-library","01.csharp/12.desktop-ui/04c.handycontrol-library",{"title":1385,"path":1386,"stem":1387},"Простори імен та ресурси XAML","/csharp/desktop-ui/xaml-namespaces-resources","01.csharp/12.desktop-ui/05.xaml-namespaces-resources",{"title":1389,"path":1390,"stem":1391},"XAML в Avalonia: ключові відмінності від WPF","/csharp/desktop-ui/05a.avalonia-xaml-differences","01.csharp/12.desktop-ui/05a.avalonia-xaml-differences",{"title":1393,"path":1394,"stem":1395},"Розширення розмітки XAML (Markup Extensions)","/csharp/desktop-ui/xaml-markup-extensions","01.csharp/12.desktop-ui/06.xaml-markup-extensions",{"title":1397,"path":1398,"stem":1399},"Панелі Layout: StackPanel, WrapPanel, DockPanel","/csharp/desktop-ui/layout-panels-part1","01.csharp/12.desktop-ui/07.layout-panels-part1",{"title":1401,"path":1402,"stem":1403},"Grid, Canvas, UniformGrid","/csharp/desktop-ui/layout-panels-part2","01.csharp/12.desktop-ui/07.layout-panels-part2",{"title":1405,"path":1406,"stem":1407},"Просунуті техніки Layout","/csharp/desktop-ui/layout-advanced","01.csharp/12.desktop-ui/08.layout-advanced",{"title":1409,"path":1410,"stem":1411},"Адаптивний Layout та найкращі практики","/csharp/desktop-ui/layout-responsive","01.csharp/12.desktop-ui/09.layout-responsive",{"title":1413,"path":1414,"stem":1415},"Layout в Avalonia: відмінності та нові можливості","/csharp/desktop-ui/09a.layout-avalonia","01.csharp/12.desktop-ui/09a.layout-avalonia",{"title":1417,"path":1418,"stem":1419},"Button, Image, ProgressBar та інші базові контроли","/csharp/desktop-ui/basic-controls","01.csharp/12.desktop-ui/10.basic-controls",{"title":1421,"path":1422,"stem":1423},"Контроли в Avalonia: відмінності від WPF","/csharp/desktop-ui/10a.controls-avalonia","01.csharp/12.desktop-ui/10a.controls-avalonia",{"title":1425,"path":1426,"stem":1427},"Текстові контроли — TextBlock, TextBox, RichTextBox","/csharp/desktop-ui/text-controls","01.csharp/12.desktop-ui/11.text-controls",{"title":1429,"path":1430,"stem":1431},"Контроли вибору — CheckBox, RadioButton, ComboBox, ListBox, DatePicker","/csharp/desktop-ui/selection-controls","01.csharp/12.desktop-ui/12.selection-controls",{"title":1433,"path":1434,"stem":1435},"Content Model — GroupBox, Expander, TabControl, StatusBar","/csharp/desktop-ui/content-controls","01.csharp/12.desktop-ui/13.content-controls",{"title":1437,"path":1438,"stem":1439},"UI/UX принципи десктопних застосунків","/csharp/desktop-ui/13a.ui-ux-principles","01.csharp/12.desktop-ui/13a.ui-ux-principles",{"title":1441,"path":1442,"stem":1443},"Dependency Properties — Концепція та Value Resolution","/csharp/desktop-ui/dependency-properties-part1","01.csharp/12.desktop-ui/14.dependency-properties-part1",{"title":1445,"path":1446,"stem":1447},"Avalonia Property System — StyledProperty та DirectProperty","/csharp/desktop-ui/14a.avalonia-property-system","01.csharp/12.desktop-ui/14a.avalonia-property-system",{"title":1449,"path":1450,"stem":1451},"Attached Properties — Властивості без меж","/csharp/desktop-ui/attached-properties","01.csharp/12.desktop-ui/15.attached-properties",{"title":1453,"path":1454,"stem":1455},"Routed Events — Маршрутизація подій у WPF","/csharp/desktop-ui/routed-events","01.csharp/12.desktop-ui/16.routed-events",{"title":1457,"path":1458,"stem":1459},"Data Binding — Від Code-Behind до Декларативності","/csharp/desktop-ui/data-binding-basics-part1","01.csharp/12.desktop-ui/17.data-binding-basics-part1",{"title":1461,"path":1462,"stem":1463},"INotifyPropertyChanged — Живе оновлення UI","/csharp/desktop-ui/data-binding-basics-part2","01.csharp/12.desktop-ui/17.data-binding-basics-part2",{"title":1465,"path":1466,"stem":1467},"Compiled Bindings в Avalonia — Безпека на етапі компіляції","/csharp/desktop-ui/17a.avalonia-compiled-bindings","01.csharp/12.desktop-ui/17a.avalonia-compiled-bindings",{"title":1469,"path":1470,"stem":1471},"Просунутий Data Binding — ElementName, RelativeSource, MultiBinding","/csharp/desktop-ui/data-binding-advanced","01.csharp/12.desktop-ui/18.data-binding-advanced",{"title":1473,"path":1474,"stem":1475},"Value Converters — Перетворення типів даних у Data Binding","/csharp/desktop-ui/value-converters","01.csharp/12.desktop-ui/19.value-converters",{"title":1477,"path":1478,"stem":1479},"Data Templates — Візуалізація об'єктів у WPF","/csharp/desktop-ui/data-templates","01.csharp/12.desktop-ui/20.data-templates",{"title":1481,"path":1482,"stem":1483},"Collections Binding Part 1 — ObservableCollection та ItemsControl","/csharp/desktop-ui/collections-binding-part1","01.csharp/12.desktop-ui/21.collections-binding-part1",{"title":1485,"path":1486,"stem":1487},"Collections Binding Part 2 — ICollectionView, Filtering, Sorting та Virtualization","/csharp/desktop-ui/collections-binding-part2","01.csharp/12.desktop-ui/21.collections-binding-part2",{"title":1489,"path":1490,"stem":1491},"MVVM Pattern — Від Spaghetti Code до архітектури","/csharp/desktop-ui/mvvm-pattern","01.csharp/12.desktop-ui/22.mvvm-pattern",{"title":1493,"path":1494,"stem":1495},"ViewModel Implementation — Від BaseViewModel до валідації","/csharp/desktop-ui/viewmodel-implementation","01.csharp/12.desktop-ui/23.viewmodel-implementation",{"title":1497,"path":1498,"stem":1499},"Commands — Від event handlers до декларативних команд","/csharp/desktop-ui/commands","01.csharp/12.desktop-ui/24.commands",{"title":1501,"path":1502,"stem":1503},"MVVM Toolkit — MVVM без boilerplate через Source Generators","/csharp/desktop-ui/mvvm-toolkit","01.csharp/12.desktop-ui/25.mvvm-toolkit",{"title":1505,"path":1506,"stem":1507},"Messenger Pattern — Комунікація між ViewModel без прямих посилань","/csharp/desktop-ui/messenger-pattern","01.csharp/12.desktop-ui/26.messenger-pattern",{"title":1509,"path":1510,"stem":1511},"Стилі WPF — CSS для десктопу","/csharp/desktop-ui/styles-basics","01.csharp/12.desktop-ui/27.styles-basics",{"title":1513,"path":1514,"stem":1515},"CSS-like стилі Avalonia","/csharp/desktop-ui/27a.avalonia-css-styling","01.csharp/12.desktop-ui/27a.avalonia-css-styling",{"title":1517,"path":1518,"stem":1519},"Control Templates — Частина 1. Концепція та TemplateBinding","/csharp/desktop-ui/control-templates-part1","01.csharp/12.desktop-ui/28.control-templates-part1",{"title":1521,"path":1522,"stem":1523},"Control Templates — Частина 2. Named Parts та ContentPresenter","/csharp/desktop-ui/control-templates-part2","01.csharp/12.desktop-ui/28.control-templates-part2",{"title":1525,"path":1526,"stem":1527},"Control Themes в Avalonia — нова ера стилізації","/csharp/desktop-ui/28a.avalonia-control-themes","01.csharp/12.desktop-ui/28a.avalonia-control-themes",{"title":1529,"path":1530,"stem":1531},"Triggers та Visual State Manager у WPF","/csharp/desktop-ui/triggers-visual-states","01.csharp/12.desktop-ui/29.triggers-visual-states",{"title":1533,"path":1534,"stem":1535},"Pseudo-classes в Avalonia — замість WPF Triggers","/csharp/desktop-ui/29a.avalonia-pseudo-classes","01.csharp/12.desktop-ui/29a.avalonia-pseudo-classes",{"title":1537,"path":1538,"stem":1539},"Теми та ресурсні словники у WPF","/csharp/desktop-ui/resources-themes","01.csharp/12.desktop-ui/30.resources-themes",{"title":1541,"path":1542,"stem":1543},"Avalonia Themes — Fluent Design та система тематизації","/csharp/desktop-ui/30a.avalonia-themes-fluent","01.csharp/12.desktop-ui/30a.avalonia-themes-fluent",{"title":1545,"path":1546,"stem":1547},"Контроли колекцій — глибоке занурення","/csharp/desktop-ui/collection-controls","01.csharp/12.desktop-ui/31.collection-controls",{"title":1549,"path":1550,"stem":1551},"DataGrid — колонки та базове відображення","/csharp/desktop-ui/datagrid-part1","01.csharp/12.desktop-ui/32.datagrid-part1",{"title":1553,"path":1554,"stem":1555},"DataGrid — сортування, фільтрація, редагування","/csharp/desktop-ui/datagrid-part2","01.csharp/12.desktop-ui/32.datagrid-part2",{"title":1557,"path":1558,"stem":1559},"TreeView та GridView","/csharp/desktop-ui/treeview-listview","01.csharp/12.desktop-ui/33.treeview-listview",{"title":1561,"path":1562,"stem":1563},"Меню, Toolbar, ContextMenu, StatusBar","/csharp/desktop-ui/menus-toolbars","01.csharp/12.desktop-ui/34.menus-toolbars",{"title":1565,"path":1566,"stem":1567},"Навігація та керування вікнами. Частина 1: вікна та сторінки","/csharp/desktop-ui/navigation-windows-part1","01.csharp/12.desktop-ui/35.navigation-windows-part1",{"title":1569,"path":1570,"stem":1571},"Навігація та керування вікнами. Частина 2: MVVM-навігація","/csharp/desktop-ui/navigation-windows-part2","01.csharp/12.desktop-ui/35.navigation-windows-part2",{"title":1573,"path":1574,"stem":1575},"Avalonia — Навігація та діалоги","/csharp/desktop-ui/35a.avalonia-navigation-dialogs","01.csharp/12.desktop-ui/35a.avalonia-navigation-dialogs",{"title":1577,"path":1578,"stem":1579},"Діалоги та File Pickers у WPF","/csharp/desktop-ui/dialogs-file-pickers","01.csharp/12.desktop-ui/36.dialogs-file-pickers",{"title":1581,"path":1582,"stem":1583},"UserControl: компонентний підхід у WPF","/csharp/desktop-ui/user-controls","01.csharp/12.desktop-ui/37.user-controls",{"title":1585,"path":1586,"stem":1587},"Custom Controls: Lookless Controls у WPF","/csharp/desktop-ui/custom-controls","01.csharp/12.desktop-ui/38.custom-controls",{"title":1589,"path":1590,"stem":1591},"Avalonia TemplatedControl — Lookless Controls","/csharp/desktop-ui/38a.avalonia-templated-controls","01.csharp/12.desktop-ui/38a.avalonia-templated-controls",{"title":1593,"path":1594,"stem":1595},"Анімації у WPF: Storyboard та Easing Functions","/csharp/desktop-ui/animations-transitions","01.csharp/12.desktop-ui/39.animations-transitions",{"title":1597,"path":1598,"stem":1599},"Анімації в Avalonia","/csharp/desktop-ui/39a.avalonia-animations","01.csharp/12.desktop-ui/39a.avalonia-animations",{"title":1601,"path":1602,"stem":1603},"2D Графіка та Мультимедіа у WPF","/csharp/desktop-ui/media-graphics","01.csharp/12.desktop-ui/40.media-graphics",{"title":1605,"path":1606,"stem":1607},"Dependency Injection у WPF та Avalonia","/csharp/desktop-ui/di-integration","01.csharp/12.desktop-ui/41.di-integration",{"title":1609,"path":1610,"stem":1611},"SQLite та EF Core у десктопних додатках","/csharp/desktop-ui/data-persistence-part1","01.csharp/12.desktop-ui/42.data-persistence-part1",{"title":1613,"path":1614,"stem":1615},"Repository Pattern та Unit of Work","/csharp/desktop-ui/data-persistence-part2","01.csharp/12.desktop-ui/43.data-persistence-part2",{"title":1617,"path":1618,"stem":1619},"Тестування ViewModels","/csharp/desktop-ui/viewmodel-testing","01.csharp/12.desktop-ui/44.viewmodel-testing",{"title":1621,"path":1622,"stem":1623},"Avalonia Headless Testing — тестування UI без вікон","/csharp/desktop-ui/44a.avalonia-headless-testing","01.csharp/12.desktop-ui/44a.avalonia-headless-testing",{"title":1625,"path":1626,"stem":1627},"Кросплатформна розробка з Avalonia","/csharp/desktop-ui/avalonia-cross-platform","01.csharp/12.desktop-ui/45.avalonia-cross-platform",{"title":1629,"path":1630,"stem":1631},"Пакування та розгортання Avalonia додатків","/csharp/desktop-ui/avalonia-packaging-deployment","01.csharp/12.desktop-ui/46.avalonia-packaging-deployment",{"title":1633,"path":1634,"stem":1635},"Розгортання WPF застосунків","/csharp/desktop-ui/wpf-packaging-deployment","01.csharp/12.desktop-ui/47.wpf-packaging-deployment",{"title":1637,"path":1638,"stem":1639},"C# & .NET: The Ultimate Roadmap","/csharp/roadmap","01.csharp/roadmap",{"title":1641,"icon":1642,"path":1643,"stem":1644,"children":1645,"page":59},"C++","i-devicon-cplusplus","/cpp","02.cpp",[1646,1650,1654,1658,1662,1666,1670,1674,1678,1681,1685,1689,1693,1697,1701,1705,1709,1713,1717,1721,1725,1729,1733,1737,1741,1745,1749,1753,1757,1761],{"title":1647,"path":1648,"stem":1649},"Вступ у програмування та алгоритми","/cpp/intro-algorithms","02.cpp/01.intro-algorithms",{"title":1651,"path":1652,"stem":1653},"Code Style: угоди про оформлення коду","/cpp/code-style","02.cpp/02.code-style",{"title":1655,"path":1656,"stem":1657},"Середовище розробки та перший проєкт","/cpp/ide-setup","02.cpp/03.ide-setup",{"title":1659,"path":1660,"stem":1661},"Вивід даних на екран","/cpp/data-output","02.cpp/04.data-output",{"title":1663,"path":1664,"stem":1665},"Типи даних, змінні та константи","/cpp/data-types-variables","02.cpp/05.data-types-variables",{"title":1667,"path":1668,"stem":1669},"Ввід даних з клавіатури","/cpp/data-input","02.cpp/06.data-input",{"title":1671,"path":1672,"stem":1673},"Оператори, перетворення типів та логічні операції","/cpp/operators-type-conversion","02.cpp/07.operators-type-conversion",{"title":1675,"path":1676,"stem":1677},"Цикли","/cpp/loops","02.cpp/08.loops",{"title":32,"path":1679,"stem":1680},"/cpp/arrays","02.cpp/09.arrays",{"title":1682,"path":1683,"stem":1684},"Алгоритми сортування та аналіз складності","/cpp/sorting","02.cpp/10.sorting",{"title":1686,"path":1687,"stem":1688},"Алгоритми пошуку","/cpp/searching","02.cpp/11.searching",{"title":1690,"path":1691,"stem":1692},"Функції: основи","/cpp/functions-basics","02.cpp/12.functions-basics",{"title":1694,"path":1695,"stem":1696},"Функції: прототипи, область видимості та додаткові можливості","/cpp/functions-scope","02.cpp/13.functions-scope",{"title":1698,"path":1699,"stem":1700},"Функції: перевантаження та шаблони","/cpp/functions-overloading-templates","02.cpp/14.functions-overloading-templates",{"title":1702,"path":1703,"stem":1704},"Вказівники: основи","/cpp/pointers-basics","02.cpp/15.pointers-basics",{"title":1706,"path":1707,"stem":1708},"Посилання (References)","/cpp/references","02.cpp/16.references",{"title":1710,"path":1711,"stem":1712},"Вказівники, const і масиви","/cpp/pointers-const-arrays","02.cpp/17.pointers-const-arrays",{"title":1714,"path":1715,"stem":1716},"Адресна арифметика","/cpp/pointer-arithmetic","02.cpp/18.pointer-arithmetic",{"title":1718,"path":1719,"stem":1720},"Динамічна пам'ять","/cpp/dynamic-memory","02.cpp/19.dynamic-memory",{"title":1722,"path":1723,"stem":1724},"Вказівники типу void","/cpp/void-pointers","02.cpp/20.void-pointers",{"title":1726,"path":1727,"stem":1728},"Вказівники на вказівники","/cpp/pointers-to-pointers","02.cpp/21.pointers-to-pointers",{"title":1730,"path":1731,"stem":1732},"Оператор доступу до членів через вказівник (->)","/cpp/member-access-operator","02.cpp/22.member-access-operator",{"title":1734,"path":1735,"stem":1736},"Цикл for-each (Range-based for)","/cpp/foreach-loop","02.cpp/23.foreach-loop",{"title":1738,"path":1739,"stem":1740},"Вказівники на функції","/cpp/function-pointers","02.cpp/24.function-pointers",{"title":1742,"path":1743,"stem":1744},"Лямбда-вирази","/cpp/lambdas","02.cpp/25.lambdas",{"title":1746,"path":1747,"stem":1748},"Лямбда-захоплення","/cpp/lambda-captures","02.cpp/26.lambda-captures",{"title":1750,"path":1751,"stem":1752},"Еліпсис","/cpp/ellipsis","02.cpp/27.ellipsis",{"title":1754,"path":1755,"stem":1756},"Аргументи командного рядка","/cpp/command-line-arguments","02.cpp/28.command-line-arguments",{"title":1758,"path":1759,"stem":1760},"Перерахування (enum)","/cpp/enum","02.cpp/29.enum",{"title":1762,"path":1763,"stem":1764},"План навчання: Курс C++ — Продовження (Статті 29–60+)","/cpp/curriculum-plan","02.cpp/curriculum-plan",{"title":1766,"icon":1767,"path":1768,"stem":1769,"children":1770,"page":59},"JavaScript","i-devicon-javascript","/javascript","03.javascript",[1771,1797,1851,1873,2177,2215],{"title":1772,"icon":1773,"path":1774,"stem":1775,"children":1776,"page":59},"Events","i-lucide-mouse-pointer-click","/javascript/events","03.javascript/01.events",[1777,1781,1785,1789,1793],{"title":1778,"path":1779,"stem":1780},"Вступ до подій браузера","/javascript/events/intro","03.javascript/01.events/01.intro",{"title":1782,"path":1783,"stem":1784},"Бульбашковий механізм (Bubbling) та занурення (Capturing)","/javascript/events/bubbling-capturing","03.javascript/01.events/02.bubbling-capturing",{"title":1786,"path":1787,"stem":1788},"Делегування подій (Event Delegation)","/javascript/events/delegate-events","03.javascript/01.events/03.delegate-events",{"title":1790,"path":1791,"stem":1792},"Типові дії браузера та preventDefault()","/javascript/events/prevent-default","03.javascript/01.events/04.prevent-default",{"title":1794,"path":1795,"stem":1796},"Запуск користувацьких подій (Custom Events)","/javascript/events/custom-events","03.javascript/01.events/05.custom-events",{"title":1798,"icon":1799,"path":1800,"stem":1801,"children":1802,"page":59},"Network","i-lucide-globe","/javascript/network","03.javascript/02.network",[1803,1807,1811,1815,1819,1823,1827,1831,1835,1839,1843,1847],{"title":1804,"path":1805,"stem":1806},"Fetch API - Сучасний підхід до HTTP-запитів","/javascript/network/01-fetch-api","03.javascript/02.network/01-fetch-api",{"title":1808,"path":1809,"stem":1810},"FormData - Робота з формами та файлами","/javascript/network/02-formdata","03.javascript/02.network/02-formdata",{"title":1812,"path":1813,"stem":1814},"Відстеження прогресу завантаження","/javascript/network/03-download-progress","03.javascript/02.network/03-download-progress",{"title":1816,"path":1817,"stem":1818},"Переривання fetch-запитів","/javascript/network/04-abort-requests","03.javascript/02.network/04-abort-requests",{"title":1820,"path":1821,"stem":1822},"CORS - Запити між різними джерелами","/javascript/network/05-cors","03.javascript/02.network/05-cors",{"title":1824,"path":1825,"stem":1826},"Fetch API - Повний довідник опцій","/javascript/network/06-fetch-options","03.javascript/02.network/06-fetch-options",{"title":1828,"path":1829,"stem":1830},"URL Objects - Робота з посиланнями","/javascript/network/07-url-objects","03.javascript/02.network/07-url-objects",{"title":1832,"path":1833,"stem":1834},"XMLHttpRequest - AJAX та низькорівневі запити","/javascript/network/08-xmlhttprequest","03.javascript/02.network/08-xmlhttprequest",{"title":1836,"path":1837,"stem":1838},"Відновлюване завантаження файлів","/javascript/network/09-resumable-upload","03.javascript/02.network/09-resumable-upload",{"title":1840,"path":1841,"stem":1842},"Cookies, document.cookie та світ після \"Cookiepocalypse\"","/javascript/network/10-cookies","03.javascript/02.network/10-cookies",{"title":1844,"path":1845,"stem":1846},"js-cookie: Керування Cookies без Болю","/javascript/network/11-js-cookie","03.javascript/02.network/11-js-cookie",{"title":1848,"path":1849,"stem":1850},"Axios: Потужний HTTP-клієнт для JavaScript","/javascript/network/12-axios","03.javascript/02.network/12-axios",{"title":1852,"icon":1853,"path":1854,"stem":1855,"children":1856,"page":59},"Bom","i-lucide-monitor","/javascript/bom","03.javascript/03.bom",[1857,1861,1865,1869],{"title":1858,"path":1859,"stem":1860},"LocalStorage, SessionStorage та patterns збереження даних","/javascript/bom/01-localstorage","03.javascript/03.bom/01-localstorage",{"title":1862,"path":1863,"stem":1864},"Location Object - Керування адресою сторінки","/javascript/bom/02-location-object","03.javascript/03.bom/02-location-object",{"title":1866,"path":1867,"stem":1868},"History API - Керування історією браузера","/javascript/bom/03-history-api","03.javascript/03.bom/03-history-api",{"title":1870,"path":1871,"stem":1872},"Navigator Object - Ідентифікація та Можливості Пристрою","/javascript/bom/04-navigator-object","03.javascript/03.bom/04-navigator-object",{"title":1874,"icon":1875,"path":1876,"stem":1877,"children":1878},"React","i-devicon-react","/javascript/react","03.javascript/04.react/index",[1879,1880,1884,1888,1892,1896,1959,1994,2146],{"title":1874,"path":1876,"stem":1877},{"title":1881,"path":1882,"stem":1883},"Робота з Формами в React","/javascript/react/react-forms","03.javascript/04.react/01.react-forms",{"title":1885,"path":1886,"stem":1887},"React Hook Form: Професійна Робота з Формами","/javascript/react/react-hook-form","03.javascript/04.react/02.react-hook-form",{"title":1889,"path":1890,"stem":1891},"React Hook Form: Глибоке Розуміння Архітектури та Оптимізації","/javascript/react/react-hook-form-new","03.javascript/04.react/02.react-hook-form-new",{"title":1893,"path":1894,"stem":1895},"Axios та React: Професійна Архітектура Запитів","/javascript/react/data-fetching-axios","03.javascript/04.react/03.data-fetching-axios",{"title":1897,"icon":132,"path":1898,"stem":1899,"children":1900},"Tanstack Query","/javascript/react/tanstack-query","03.javascript/04.react/04.tanstack-query/index",[1901,1903,1907,1911,1915,1919,1923,1927,1931,1935,1939,1943,1947,1951,1955],{"title":1902,"path":1898,"stem":1899},"TanStack Query: Майстерність Керування Станом Сервера",{"title":1904,"path":1905,"stem":1906},"Парадигма Server State: Чому useEffect недостатньо","/javascript/react/tanstack-query/server-state-paradigm","03.javascript/04.react/04.tanstack-query/01.server-state-paradigm",{"title":1908,"path":1909,"stem":1910},"Встановлення та Налаштування: Фундамент","/javascript/react/tanstack-query/installation-and-devtools","03.javascript/04.react/04.tanstack-query/02.installation-and-devtools",{"title":1912,"path":1913,"stem":1914},"Основи Запитів та Магія Ключів","/javascript/react/tanstack-query/query-basics-and-keys","03.javascript/04.react/04.tanstack-query/03.query-basics-and-keys",{"title":1916,"path":1917,"stem":1918},"Синхронізація Даних: Життєвий Цикл Запиту","/javascript/react/tanstack-query/data-synchronization","03.javascript/04.react/04.tanstack-query/04.data-synchronization",{"title":1920,"path":1921,"stem":1922},"Мутації та Інвалідація: Зміна Даних","/javascript/react/tanstack-query/mutations-and-invalidation","03.javascript/04.react/04.tanstack-query/05.mutations-and-invalidation",{"title":1924,"path":1925,"stem":1926},"Оптимістичні Оновлення: Швидше за Світло","/javascript/react/tanstack-query/optimistic-updates","03.javascript/04.react/04.tanstack-query/06.optimistic-updates",{"title":1928,"path":1929,"stem":1930},"Пагінація та Infinite Scroll","/javascript/react/tanstack-query/pagination-and-load-more","03.javascript/04.react/04.tanstack-query/07.pagination-and-load-more",{"title":1932,"path":1933,"stem":1934},"Просунуті Патерни та Оптимізація","/javascript/react/tanstack-query/advanced-patterns","03.javascript/04.react/04.tanstack-query/08.advanced-patterns",{"title":1936,"path":1937,"stem":1938},"Архітектура та Best Practices","/javascript/react/tanstack-query/architecture-and-best-practices","03.javascript/04.react/04.tanstack-query/09.architecture-and-best-practices",{"title":1940,"path":1941,"stem":1942},"Server-Side Rendering (SSR) та Гідратація","/javascript/react/tanstack-query/server-side-rendering","03.javascript/04.react/04.tanstack-query/10.server-side-rendering",{"title":1944,"path":1945,"stem":1946},"Стратегії Тестування","/javascript/react/tanstack-query/testing-strategies","03.javascript/04.react/04.tanstack-query/11.testing-strategies",{"title":1948,"path":1949,"stem":1950},"Аутентифікація та Обробка Помилок","/javascript/react/tanstack-query/authentication-and-errors","03.javascript/04.react/04.tanstack-query/12.authentication-and-errors",{"title":1952,"path":1953,"stem":1954},"React Suspense та Майбутнє","/javascript/react/tanstack-query/react-suspense","03.javascript/04.react/04.tanstack-query/13.react-suspense",{"title":1956,"path":1957,"stem":1958},"Глибоке Занурення в Продуктивність","/javascript/react/tanstack-query/performance-deep-dive","03.javascript/04.react/04.tanstack-query/14.performance-deep-dive",{"title":1960,"icon":1875,"path":1961,"stem":1962,"children":1963},"React Router","/javascript/react/react-router","03.javascript/04.react/05.react-router/index",[1964,1966,1970,1974,1978,1982,1986,1990],{"title":1965,"path":1961,"stem":1962},"React Router: Навігаційна система сучасного вебу",{"title":1967,"path":1968,"stem":1969},"Налаштування та Базовий Роутинг","/javascript/react/react-router/setup-and-basic-routing","03.javascript/04.react/05.react-router/01.setup-and-basic-routing",{"title":1971,"path":1972,"stem":1973},"Динамічна Навігація","/javascript/react/react-router/navigation-and-links","03.javascript/04.react/05.react-router/02.navigation-and-links",{"title":1975,"path":1976,"stem":1977},"Вкладені Маршрути та Макети","/javascript/react/react-router/nested-routes-and-layouts","03.javascript/04.react/05.react-router/03.nested-routes-and-layouts",{"title":1979,"path":1980,"stem":1981},"Динамічні Маршрути та Параметри","/javascript/react/react-router/dynamic-routing","03.javascript/04.react/05.react-router/04.dynamic-routing",{"title":1983,"path":1984,"stem":1985},"Data APIs: Loaders та Actions","/javascript/react/react-router/data-loading","03.javascript/04.react/05.react-router/05.data-loading",{"title":1987,"path":1988,"stem":1989},"Просунуті Патерни","/javascript/react/react-router/advanced-patterns","03.javascript/04.react/05.react-router/06.advanced-patterns",{"title":1991,"path":1992,"stem":1993},"Legacy Routing: Компонентний підхід","/javascript/react/react-router/legacy-routing","03.javascript/04.react/05.react-router/07.legacy-routing",{"title":1995,"icon":132,"path":1996,"stem":1997,"children":1998},"Redux","/javascript/react/redux","03.javascript/04.react/06.redux/index",[1999,2001,2017,2046,2055,2076,2092,2121],{"title":2000,"path":1996,"stem":1997},"Redux: Еволюція управління станом",{"title":14,"icon":15,"path":2002,"stem":2003,"children":2004,"page":59},"/javascript/react/redux/fundamentals","03.javascript/04.react/06.redux/01.fundamentals",[2005,2009,2013],{"title":2006,"path":2007,"stem":2008},"Вступ до State Management","/javascript/react/redux/fundamentals/intro-state-management","03.javascript/04.react/06.redux/01.fundamentals/01.intro-state-management",{"title":2010,"path":2011,"stem":2012},"Філософія Redux та Три Принципи","/javascript/react/redux/fundamentals/redux-philosophy","03.javascript/04.react/06.redux/01.fundamentals/02.redux-philosophy",{"title":2014,"path":2015,"stem":2016},"Чисті функції та Іммутабельність","/javascript/react/redux/fundamentals/pure-functions-immutability","03.javascript/04.react/06.redux/01.fundamentals/03.pure-functions-immutability",{"title":2018,"icon":132,"path":2019,"stem":2020,"children":2021,"page":59},"Classic Redux","/javascript/react/redux/classic-redux","03.javascript/04.react/06.redux/02.classic-redux",[2022,2026,2030,2034,2038,2042],{"title":2023,"path":2024,"stem":2025},"Створення Store (Classic Redux)","/javascript/react/redux/classic-redux/store-setup","03.javascript/04.react/06.redux/02.classic-redux/01.store-setup",{"title":2027,"path":2028,"stem":2029},"Actions, Constants та Action Creators","/javascript/react/redux/classic-redux/actions-constants","03.javascript/04.react/06.redux/02.classic-redux/02.actions-constants",{"title":2031,"path":2032,"stem":2033},"Логіка Reducers","/javascript/react/redux/classic-redux/reducers","03.javascript/04.react/06.redux/02.classic-redux/03.reducers",{"title":2035,"path":2036,"stem":2037},"Комбінування Reducers (Root Reducer)","/javascript/react/redux/classic-redux/data-flow","03.javascript/04.react/06.redux/02.classic-redux/04.data-flow",{"title":2039,"path":2040,"stem":2041},"Підключення до React (React-Redux)","/javascript/react/redux/classic-redux/react-redux-connection","03.javascript/04.react/06.redux/02.classic-redux/05.react-redux-connection",{"title":2043,"path":2044,"stem":2045},"Middleware та Асинхронність (Redux Thunk)","/javascript/react/redux/classic-redux/middleware-thunk","03.javascript/04.react/06.redux/02.classic-redux/06.middleware-thunk",{"title":2047,"icon":132,"path":2048,"stem":2049,"children":2050,"page":59},"Transition To Rtk","/javascript/react/redux/transition-to-rtk","03.javascript/04.react/06.redux/03.transition-to-rtk",[2051],{"title":2052,"path":2053,"stem":2054},"Проблеми класичного Redux","/javascript/react/redux/transition-to-rtk/problems-with-classic","03.javascript/04.react/06.redux/03.transition-to-rtk/01.problems-with-classic",{"title":2056,"icon":132,"path":2057,"stem":2058,"children":2059,"page":59},"Redux Toolkit","/javascript/react/redux/redux-toolkit","03.javascript/04.react/06.redux/04.redux-toolkit",[2060,2064,2068,2072],{"title":2061,"path":2062,"stem":2063},"Налаштування Store з configureStore","/javascript/react/redux/redux-toolkit/configure-store","03.javascript/04.react/06.redux/04.redux-toolkit/01.configure-store",{"title":2065,"path":2066,"stem":2067},"createSlice: Революція в Redux","/javascript/react/redux/redux-toolkit/create-slice","03.javascript/04.react/06.redux/04.redux-toolkit/02.create-slice",{"title":2069,"path":2070,"stem":2071},"Асинхронність з createAsyncThunk","/javascript/react/redux/redux-toolkit/async-thunks","03.javascript/04.react/06.redux/04.redux-toolkit/03.async-thunks",{"title":2073,"path":2074,"stem":2075},"04. Entity Adapter: Керування нормалізованим станом","/javascript/react/redux/redux-toolkit/entity-adapter","03.javascript/04.react/06.redux/04.redux-toolkit/04.entity-adapter",{"title":2077,"icon":92,"path":2078,"stem":2079,"children":2080,"page":59},"Advanced","/javascript/react/redux/advanced","03.javascript/04.react/06.redux/05.advanced",[2081,2085,2089],{"title":2082,"path":2083,"stem":2084},"Мемоізація та Селектори: Повний Гайд по Reselect","/javascript/react/redux/advanced/selectors-reselect","03.javascript/04.react/06.redux/05.advanced/01.selectors-reselect",{"title":2086,"path":2087,"stem":2088},"RTK Query: Архітектура Серверного Кешу","/javascript/react/redux/advanced/rtk-query-intro","03.javascript/04.react/06.redux/05.advanced/02.rtk-query-intro",{"title":1936,"path":2090,"stem":2091},"/javascript/react/redux/advanced/architecture-best-practices","03.javascript/04.react/06.redux/05.advanced/03.architecture-best-practices",{"title":2093,"icon":132,"path":2094,"stem":2095,"children":2096,"page":59},"Project Kanban","/javascript/react/redux/project-kanban","03.javascript/04.react/06.redux/06.project-kanban",[2097,2101,2105,2109,2113,2117],{"title":2098,"path":2099,"stem":2100},"Проєкт: Kanban Board (Trello Clone)","/javascript/react/redux/project-kanban/project-overview","03.javascript/04.react/06.redux/06.project-kanban/01.project-overview",{"title":2102,"path":2103,"stem":2104},"Налаштування та Типізація","/javascript/react/redux/project-kanban/setup-and-types","03.javascript/04.react/06.redux/06.project-kanban/02.setup-and-types",{"title":2106,"path":2107,"stem":2108},"Board Slice: Серце Дошки","/javascript/react/redux/project-kanban/board-slice","03.javascript/04.react/06.redux/06.project-kanban/03.board-slice",{"title":2110,"path":2111,"stem":2112},"Логіка Drag & Drop","/javascript/react/redux/project-kanban/drag-and-drop-logic","03.javascript/04.react/06.redux/06.project-kanban/04.drag-and-drop-logic",{"title":2114,"path":2115,"stem":2116},"Інтеграція з RTK Query","/javascript/react/redux/project-kanban/rtk-query-integration","03.javascript/04.react/06.redux/06.project-kanban/05.rtk-query-integration",{"title":2118,"path":2119,"stem":2120},"Optimistic Updates","/javascript/react/redux/project-kanban/optimistic-updates","03.javascript/04.react/06.redux/06.project-kanban/06.optimistic-updates",{"title":2122,"icon":132,"path":2123,"stem":2124,"children":2125,"page":59},"Testing","/javascript/react/redux/testing","03.javascript/04.react/06.redux/07.testing",[2126,2130,2134,2138,2142],{"title":2127,"path":2128,"stem":2129},"Тестування Redux","/javascript/react/redux/testing/intro-testing","03.javascript/04.react/06.redux/07.testing/01.intro-testing",{"title":2131,"path":2132,"stem":2133},"Тестування Reducers","/javascript/react/redux/testing/testing-reducers","03.javascript/04.react/06.redux/07.testing/02.testing-reducers",{"title":2135,"path":2136,"stem":2137},"Тестування Селекторів","/javascript/react/redux/testing/testing-selectors","03.javascript/04.react/06.redux/07.testing/03.testing-selectors",{"title":2139,"path":2140,"stem":2141},"Тестування Компонентів (Integration)","/javascript/react/redux/testing/testing-components","03.javascript/04.react/06.redux/07.testing/04.testing-components",{"title":2143,"path":2144,"stem":2145},"Тестування Async Thunks","/javascript/react/redux/testing/testing-thunks","03.javascript/04.react/06.redux/07.testing/05.testing-thunks",{"title":2147,"icon":132,"path":2148,"stem":2149,"children":2150},"Ui Libraries","/javascript/react/ui-libraries","03.javascript/04.react/07.ui-libraries/index",[2151,2153,2157,2161,2165,2169,2173],{"title":2152,"path":2148,"stem":2149},"UI Бібліотеки в React",{"title":2154,"path":2155,"stem":2156},"Вступ до UI Бібліотек: Навіщо Винаходити Велосипед Двічі?","/javascript/react/ui-libraries/introduction-to-ui-libraries","03.javascript/04.react/07.ui-libraries/01.introduction-to-ui-libraries",{"title":2158,"path":2159,"stem":2160},"Філософія shadcn/ui: \"Not a Component Library\"","/javascript/react/ui-libraries/shadcn-philosophy","03.javascript/04.react/07.ui-libraries/02.shadcn-philosophy",{"title":2162,"path":2163,"stem":2164},"Установка та Налаштування shadcn/ui","/javascript/react/ui-libraries/shadcn-installation","03.javascript/04.react/07.ui-libraries/03.shadcn-installation",{"title":2166,"path":2167,"stem":2168},"Базові Компоненти shadcn/ui: Фундамент Інтерфейсу","/javascript/react/ui-libraries/shadcn-components-basics","03.javascript/04.react/07.ui-libraries/04.shadcn-components-basics",{"title":2170,"path":2171,"stem":2172},"Компоненти Форм: Побудова Інтерактивних Form","/javascript/react/ui-libraries/shadcn-components-forms","03.javascript/04.react/07.ui-libraries/05.shadcn-components-forms",{"title":2174,"path":2175,"stem":2176},"Складні Компоненти: Dialog, Dropdown, Table та Command","/javascript/react/ui-libraries/shadcn-components-advanced","03.javascript/04.react/07.ui-libraries/06.shadcn-components-advanced",{"title":2178,"icon":2179,"path":2180,"stem":2181,"children":2182,"page":59},"TypeScript","i-devicon-typescript","/javascript/typescript","03.javascript/05.typescript",[2183,2187,2191,2195,2199,2203,2207,2211],{"title":2184,"path":2185,"stem":2186},"TypeScript: Броня для вашого коду","/javascript/typescript/intro-and-basic-types","03.javascript/05.typescript/01.intro-and-basic-types",{"title":2188,"path":2189,"stem":2190},"Майстерність Моделювання Даних: Інтерфейси та Просунуті Типи","/javascript/typescript/interfaces-and-advanced-types","03.javascript/05.typescript/02.interfaces-and-advanced-types",{"title":2192,"path":2193,"stem":2194},"Алхімія Типів: Generics та Utility Types","/javascript/typescript/generics-and-utilities","03.javascript/05.typescript/03.generics-and-utilities",{"title":2196,"path":2197,"stem":2198},"Архітектура та Шаблони: Класи в TypeScript","/javascript/typescript/classes-and-oop","03.javascript/05.typescript/04.classes-and-oop",{"title":2200,"path":2201,"stem":2202},"Продакшн та Екосистема: Advanced Config & Workflow","/javascript/typescript/advanced-patterns-and-config","03.javascript/05.typescript/05.advanced-patterns-and-config",{"title":2204,"path":2205,"stem":2206},"TypeScript у світі React","/javascript/typescript/react-basics","03.javascript/05.typescript/06.react-basics",{"title":2208,"path":2209,"stem":2210},"React + TypeScript: Продвинуті патерни","/javascript/typescript/react-advanced","03.javascript/05.typescript/07.react-advanced",{"title":2212,"path":2213,"stem":2214},"React + TypeScript: Екосистема та бібліотеки","/javascript/typescript/react-ecosystem","03.javascript/05.typescript/08.react-ecosystem",{"title":2216,"path":2217,"stem":2218},"Atomic Design","/javascript/atomic-design","03.javascript/2.atomic-design",{"title":2220,"icon":2221,"path":2222,"stem":2223,"children":2224,"page":59},"Java","i-devicon-java","/java","04.java",[2225,2228,2231,2235,2239,2243,2247],{"title":162,"path":2226,"stem":2227},"/java/data-mapper-part1","04.java/01.data-mapper-part1",{"title":166,"path":2229,"stem":2230},"/java/data-mapper-part2","04.java/02.data-mapper-part2",{"title":2232,"path":2233,"stem":2234},"Service Layer: Організація бізнес-логіки","/java/service-layer","04.java/03.service-layer",{"title":2236,"path":2237,"stem":2238},"Rich Domain Model та State Pattern","/java/rich-domain-model","04.java/04.rich-domain-model",{"title":2240,"path":2241,"stem":2242},"Патерни для складної бізнес-логіки","/java/business-logic-patterns","04.java/05.business-logic-patterns",{"title":2244,"path":2245,"stem":2246},"Обробка помилок та валідація","/java/error-handling-validation","04.java/06.error-handling-validation",{"title":2248,"path":2249,"stem":2250,"children":2251,"page":59},"Проектування баз даних","/java/pr2","04.java/pr2",[2252,2256,2260,2264,2268,2272,2276,2280,2284,2288,2292,2296,2300,2304,2308,2312,2316,2320,2324,2328,2332,2336,2340,2344,2348],{"title":2253,"path":2254,"stem":2255},"Концептуальне моделювання: Мистецтво розуміння предметної області","/java/pr2/conceptual-modeling","04.java/pr2/01.conceptual-modeling",{"title":2257,"path":2258,"stem":2259},"Логічне моделювання: Від бізнес-ідей до структур даних","/java/pr2/logical-modeling","04.java/pr2/02.logical-modeling",{"title":2261,"path":2262,"stem":2263},"Нормалізація: Гігієна даних та боротьба з аномаліями","/java/pr2/normalization","04.java/pr2/03.normalization",{"title":2265,"path":2266,"stem":2267},"Фізична схема: Від абстракції до DDL","/java/pr2/physical-schema","04.java/pr2/04.physical-schema",{"title":2269,"path":2270,"stem":2271},"Архітектурна класифікація таблиць","/java/pr2/table-classification","04.java/pr2/05.table-classification",{"title":2273,"path":2274,"stem":2275},"Database Migrations: Версіонування схеми з Flyway","/java/pr2/database-migrations","04.java/pr2/06.database-migrations",{"title":2277,"path":2278,"stem":2279},"А що, якби це була не реляційна БД?","/java/pr2/beyond-relational","04.java/pr2/07.beyond-relational",{"title":2281,"path":2282,"stem":2283},"Object-Relational Impedance Mismatch: Два світи, що не хочуть дружити","/java/pr2/impedance-mismatch","04.java/pr2/09.impedance-mismatch",{"title":2285,"path":2286,"stem":2287},"JDBC: Перший контакт із базою даних","/java/pr2/jdbc-fundamentals","04.java/pr2/10.jdbc-fundamentals",{"title":2289,"path":2290,"stem":2291},"Якість коду: Spotless, SpotBugs та SonarQube","/java/pr2/10a.code-quality","04.java/pr2/10a.code-quality",{"title":2293,"path":2294,"stem":2295},"Connection Pool: Патерн Object Pool для JDBC-з'єднань","/java/pr2/connection-pool","04.java/pr2/11.connection-pool",{"title":2297,"path":2298,"stem":2299},"Row Data Gateway: Об'єкт як обгортка рядка таблиці","/java/pr2/row-data-gateway","04.java/pr2/12.row-data-gateway",{"title":2301,"path":2302,"stem":2303},"Table Data Gateway: Фасад таблиці як архітектурний відступ","/java/pr2/table-data-gateway","04.java/pr2/13.table-data-gateway",{"title":2305,"path":2306,"stem":2307},"Repository + Data Mapper: Правильна шарова архітектура з JDBC","/java/pr2/repository-data-mapper","04.java/pr2/14.repository-data-mapper",{"title":2309,"path":2310,"stem":2311},"Identity Map: Кешування сутностей у рамках сесії","/java/pr2/identity-map","04.java/pr2/15.identity-map",{"title":2313,"path":2314,"stem":2315},"Unit of Work: Відстеження змін і координація JDBC-транзакцій","/java/pr2/unit-of-work","04.java/pr2/16.unit-of-work",{"title":2317,"path":2318,"stem":2319},"Strategy: Замінювані SQL-стратегії для підтримки різних СУБД","/java/pr2/strategy-sql","04.java/pr2/17.strategy-sql",{"title":2321,"path":2322,"stem":2323},"Proxy: Lazy Loading для One-To-Many колекцій","/java/pr2/proxy-lazy-loading","04.java/pr2/18.proxy-lazy-loading",{"title":2325,"path":2326,"stem":2327},"Generic Repository через Java Reflection: анотації та динамічний SQL","/java/pr2/generic-repository-reflection","04.java/pr2/19.generic-repository-reflection",{"title":2329,"path":2330,"stem":2331},"Specification Pattern: Композиція бізнес-правил для складних запитів","/java/pr2/specification-pattern","04.java/pr2/20.specification-pattern",{"title":2333,"path":2334,"stem":2335},"Розширені можливості Specification Pattern: підзапити, агрегації та гібридний підхід","/java/pr2/20a.advanced-specifications","04.java/pr2/20a.advanced-specifications",{"title":2337,"path":2338,"stem":2339},"Асинхронність у JDBC: Від блокуючих викликів до CompletableFuture","/java/pr2/asynchronous-jdbc","04.java/pr2/21.asynchronous-jdbc",{"title":2341,"path":2342,"stem":2343},"Інтеграційне тестування JDBC-репозиторіїв: Embedded H2 та патерн AAA","/java/pr2/integration-testing-h2","04.java/pr2/22.integration-testing-h2",{"title":2345,"path":2346,"stem":2347},"Testcontainers: Тестування з реальною PostgreSQL у Docker-контейнерах","/java/pr2/integration-testing-testcontainers","04.java/pr2/23.integration-testing-testcontainers",{"title":2349,"path":2350,"stem":2351},"Модуль \"Проектування реляційних баз даних\" для 04.java/pr2","/java/pr2/implementation_plan","04.java/pr2/implementation_plan",{"title":2353,"icon":2354,"path":2355,"stem":2356,"children":2357,"page":59},"Бази даних","i-lucide-database","/databases","06.databases",[2358,2388,2411,2448,2477,2495,2529,2541,2550],{"title":2359,"icon":2360,"path":2361,"stem":2362,"children":2363,"page":59},"Intro","i-lucide-play","/databases/intro","06.databases/01.intro",[2364,2368,2372,2376,2380,2384],{"title":2365,"path":2366,"stem":2367},"Введення в теорію баз даних","/databases/intro/introduction-to-databases","06.databases/01.intro/01.introduction-to-databases",{"title":2369,"path":2370,"stem":2371},"Реляційна модель даних","/databases/intro/relational-model-theory","06.databases/01.intro/02.relational-model-theory",{"title":2373,"path":2374,"stem":2375},"ER-моделювання","/databases/intro/er-modeling","06.databases/01.intro/03.er-modeling",{"title":2377,"path":2378,"stem":2379},"Логічне проектування БД","/databases/intro/logical-schema","06.databases/01.intro/04.logical-schema",{"title":2381,"path":2382,"stem":2383},"Класифікація таблиць","/databases/intro/table-classification","06.databases/01.intro/05.table-classification",{"title":2385,"path":2386,"stem":2387},"PlantUML для баз даних","/databases/intro/plantuml-diagrams","06.databases/01.intro/06.plantuml-diagrams",{"title":2389,"icon":2354,"path":2390,"stem":2391,"children":2392,"page":59},"MS SQL Server Start","/databases/ms-sql-server-start","06.databases/02.ms-sql-server-start",[2393,2397,2403,2407],{"title":2394,"path":2395,"stem":2396},"Типи даних у MS SQL Server","/databases/ms-sql-server-start/data-types","06.databases/02.ms-sql-server-start/01.data-types",{"title":2398,"path":2399,"stem":2400,"children":2401},"Індекси у MS SQL Server","/databases/ms-sql-server-start/sql-indexes","06.databases/02.ms-sql-server-start/02.sql-indexes",[2402],{"title":2398,"path":2399,"stem":2400},{"title":2404,"path":2405,"stem":2406},"Системні бази даних MS SQL Server","/databases/ms-sql-server-start/system-databases","06.databases/02.ms-sql-server-start/03.system-databases",{"title":2408,"path":2409,"stem":2410},"Огляд мови SQL та запитів","/databases/ms-sql-server-start/sql-queries-overview","06.databases/02.ms-sql-server-start/04.sql-queries-overview",{"title":2412,"icon":2354,"path":2413,"stem":2414,"children":2415,"page":59},"SQL","/databases/sql","06.databases/03.sql",[2416,2420,2424,2428,2432,2436,2440,2444],{"title":2417,"path":2418,"stem":2419},"Налаштування демонстраційної бази даних","/databases/sql/sample-database-setup","06.databases/03.sql/00.sample-database-setup",{"title":2421,"path":2422,"stem":2423},"DDL - Створення таблиць (CREATE TABLE)","/databases/sql/ddl-create-table","06.databases/03.sql/01.ddl-create-table",{"title":2425,"path":2426,"stem":2427},"DDL - Зміна та видалення таблиць (ALTER, DROP)","/databases/sql/ddl-alter-drop-table","06.databases/03.sql/02.ddl-alter-drop-table",{"title":2429,"path":2430,"stem":2431},"SELECT запити - Основи","/databases/sql/select-queries-fundamentals","06.databases/03.sql/03.select-queries-fundamentals",{"title":2433,"path":2434,"stem":2435},"SELECT запити - Розширені можливості","/databases/sql/select-queries-advanced","06.databases/03.sql/04.select-queries-advanced",{"title":2437,"path":2438,"stem":2439},"INSERT запити - Додавання даних","/databases/sql/insert-queries","06.databases/03.sql/05.insert-queries",{"title":2441,"path":2442,"stem":2443},"UPDATE та DELETE запити","/databases/sql/update-delete-queries","06.databases/03.sql/06.update-delete-queries",{"title":2445,"path":2446,"stem":2447},"Транзакції в SQL","/databases/sql/transactions","06.databases/03.sql/07.transactions",{"title":2449,"icon":2354,"path":2450,"stem":2451,"children":2452,"page":59},"Multi Table Databases","/databases/multi-table-databases","06.databases/04.multi-table-databases",[2453,2457,2461,2465,2469,2473],{"title":2454,"path":2455,"stem":2456},"Зв'язки та нормалізація БД","/databases/multi-table-databases/relationships-and-normalization","06.databases/04.multi-table-databases/00.relationships-and-normalization",{"title":2458,"path":2459,"stem":2460},"INNER JOIN - З'єднання таблиць","/databases/multi-table-databases/inner-join","06.databases/04.multi-table-databases/01.inner-join",{"title":2462,"path":2463,"stem":2464},"OUTER JOINs - LEFT, RIGHT, FULL","/databases/multi-table-databases/outer-joins","06.databases/04.multi-table-databases/02.outer-joins",{"title":2466,"path":2467,"stem":2468},"CROSS та SELF JOINs","/databases/multi-table-databases/cross-self-joins","06.databases/04.multi-table-databases/03.cross-self-joins",{"title":2470,"path":2471,"stem":2472},"Підзапити (Subqueries)","/databases/multi-table-databases/subqueries","06.databases/04.multi-table-databases/04.subqueries",{"title":2474,"path":2475,"stem":2476},"Агрегації з JOIN","/databases/multi-table-databases/aggregations-with-joins","06.databases/04.multi-table-databases/05.aggregations-with-joins",{"title":2478,"icon":2479,"path":2480,"stem":2481,"children":2482,"page":59},"Aggregate Functions","i-lucide-calculator","/databases/aggregate-functions","06.databases/05.aggregate-functions",[2483,2487,2491],{"title":2484,"path":2485,"stem":2486},"Функції агрегування в MS SQL Server","/databases/aggregate-functions/introduction-aggregate-functions","06.databases/05.aggregate-functions/01.introduction-aggregate-functions",{"title":2488,"path":2489,"stem":2490},"Групування даних в MS SQL Server","/databases/aggregate-functions/grouping-data","06.databases/05.aggregate-functions/02.grouping-data",{"title":2492,"path":2493,"stem":2494},"Підзапити з агрегатними функціями","/databases/aggregate-functions/subqueries-aggregates","06.databases/05.aggregate-functions/03.subqueries-aggregates",{"title":2496,"icon":2497,"path":2498,"stem":2499,"children":2500,"page":59},"Тригери та зберігаємі процедури","i-lucide-database-zap","/databases/triggers-stored-procedures","06.databases/07.triggers-stored-procedures",[2501,2505,2509,2513,2517,2521,2525],{"title":2502,"path":2503,"stem":2504},"DML-тригери","/databases/triggers-stored-procedures/dml-triggers","06.databases/07.triggers-stored-procedures/01.dml-triggers",{"title":2506,"path":2507,"stem":2508},"DDL-тригери","/databases/triggers-stored-procedures/ddl-triggers","06.databases/07.triggers-stored-procedures/02.ddl-triggers",{"title":2510,"path":2511,"stem":2512},"Transact-SQL розширення","/databases/triggers-stored-procedures/transact-sql-extensions","06.databases/07.triggers-stored-procedures/03.transact-sql-extensions",{"title":2514,"path":2515,"stem":2516},"Транзакції","/databases/triggers-stored-procedures/transactions","06.databases/07.triggers-stored-procedures/04.transactions",{"title":2518,"path":2519,"stem":2520},"Зберігаємі процедури","/databases/triggers-stored-procedures/stored-procedures","06.databases/07.triggers-stored-procedures/05.stored-procedures",{"title":2522,"path":2523,"stem":2524},"Користувацькі функції","/databases/triggers-stored-procedures/user-defined-functions","06.databases/07.triggers-stored-procedures/06.user-defined-functions",{"title":2526,"path":2527,"stem":2528},"Безпека баз даних","/databases/triggers-stored-procedures/security","06.databases/07.triggers-stored-procedures/08.security",{"title":2526,"icon":793,"path":2530,"stem":2531,"children":2532,"page":59},"/databases/security","06.databases/08.security",[2533,2537],{"title":2534,"path":2535,"stem":2536},"Вступ до безпеки баз даних","/databases/security/introduction","06.databases/08.security/01.introduction",{"title":2538,"path":2539,"stem":2540},"Системні представлення та метадані","/databases/security/system-views","06.databases/08.security/02.system-views",{"title":2542,"icon":2543,"path":2544,"stem":2545,"children":2546,"page":59},"Резервне копіювання та відновлення","i-lucide-database-backup","/databases/backup-recovery","06.databases/09.backup-recovery",[2547],{"title":2542,"path":2548,"stem":2549},"/databases/backup-recovery/backup-restore","06.databases/09.backup-recovery/01.backup-restore",{"title":2551,"icon":2552,"path":2553,"stem":2554,"children":2555,"page":59},"Повнотекстовий пошук","i-lucide-search","/databases/full-text-search","06.databases/10.full-text-search",[2556],{"title":2551,"path":2557,"stem":2558},"/databases/full-text-search/full-text-search","06.databases/10.full-text-search/01.full-text-search",{"title":2560,"icon":2561,"path":2562,"stem":2563,"children":2564,"page":59},"Tools","i-lucide-wrench","/tools","07.tools",[2565],{"title":2566,"icon":2567,"path":2568,"stem":2569,"children":2570},"Docker","i-simple-icons-docker","/tools/docker","07.tools/01.docker/index",[2571,2573,2577,2581,2585,2589,2593,2597,2601,2605,2609,2613,2617,2621,2625,2629,2633,2637],{"title":2572,"path":2568,"stem":2569},"Docker: від нуля до production",{"title":2574,"path":2575,"stem":2576},"Контейнеризація — від проблеми до рішення","/tools/docker/containerization-concept","07.tools/01.docker/01.containerization-concept",{"title":2578,"path":2579,"stem":2580},"Docker — що це і навіщо?","/tools/docker/docker-what-and-why","07.tools/01.docker/02.docker-what-and-why",{"title":2582,"path":2583,"stem":2584},"Архітектура Docker Engine","/tools/docker/docker-architecture","07.tools/01.docker/03.docker-architecture",{"title":2586,"path":2587,"stem":2588},"Встановлення Docker","/tools/docker/installation","07.tools/01.docker/04.installation",{"title":2590,"path":2591,"stem":2592},"Перший контейнер — docker run","/tools/docker/first-container","07.tools/01.docker/05.first-container",{"title":2594,"path":2595,"stem":2596},"Життєвий цикл контейнера","/tools/docker/container-lifecycle","07.tools/01.docker/06.container-lifecycle",{"title":2598,"path":2599,"stem":2600},"Docker Images — фундаментальні концепції","/tools/docker/docker-images-fundamentals","07.tools/01.docker/07.docker-images-fundamentals",{"title":2602,"path":2603,"stem":2604},"Dockerfile — основи","/tools/docker/dockerfile-basics","07.tools/01.docker/08.dockerfile-basics",{"title":2606,"path":2607,"stem":2608},"Dockerfile — просунуті техніки","/tools/docker/dockerfile-advanced","07.tools/01.docker/09.dockerfile-advanced",{"title":2610,"path":2611,"stem":2612},"Build Context та кешування шарів","/tools/docker/build-context-and-cache","07.tools/01.docker/10.build-context-and-cache",{"title":2614,"path":2615,"stem":2616},"Реєстри Docker-образів","/tools/docker/image-registries","07.tools/01.docker/11.image-registries",{"title":2618,"path":2619,"stem":2620},"Контейнеризація .NET додатків","/tools/docker/dotnet-containerization","07.tools/01.docker/12.dotnet-containerization",{"title":2622,"path":2623,"stem":2624},"Томи та збереження даних","/tools/docker/volumes-and-data","07.tools/01.docker/13.volumes-and-data",{"title":2626,"path":2627,"stem":2628},"Основи мережі в Docker","/tools/docker/networking-basics","07.tools/01.docker/14.networking-basics",{"title":2630,"path":2631,"stem":2632},"Змінні оточення та конфігурація","/tools/docker/environment-and-configuration","07.tools/01.docker/15.environment-and-configuration",{"title":2634,"path":2635,"stem":2636},"Docker Compose — оркестрація контейнерів","/tools/docker/docker-compose-basics","07.tools/01.docker/16.docker-compose-basics",{"title":2638,"path":2639,"stem":2640},"Docker Compose — Multi-Service застосунки","/tools/docker/compose-multi-service","07.tools/01.docker/17.compose-multi-service",{"title":2642,"icon":2643,"path":2644,"stem":2645,"children":2646,"page":59},"Software Engineering","i-lucide-code-2","/software-engineering","09.software-engineering",[2647,2651,2655,2659,2663,2667,2671,2675,2679,2683,2687],{"title":2648,"path":2649,"stem":2650},"1. Аналіз предметної області. Експертні знання та складність","/software-engineering/intro.subdomains","09.software-engineering/01.intro.subdomains",{"title":2652,"path":2653,"stem":2654},"2. Обмежені контексти. Інтеграція обмежених контекстів","/software-engineering/integrating-limited-contexts","09.software-engineering/02.integrating-limited-contexts",{"title":2656,"path":2657,"stem":2658},"3. Реалізація простої бізнес-логіки","/software-engineering/simple","09.software-engineering/03.simple",{"title":2660,"path":2661,"stem":2662},"4. Опрацювання складної бізнес-логіки","/software-engineering/complex-business-logic","09.software-engineering/04.complex-business-logic",{"title":2664,"path":2665,"stem":2666},"5. Моделювання фактора часу. Подієво-орієнтована архітектура.","/software-engineering/modelling-the-time-factor","09.software-engineering/05.modelling-the-time-factor",{"title":2668,"path":2669,"stem":2670},"6. Архітектурні патерни","/software-engineering/architectural-patterns","09.software-engineering/06.architectural-patterns",{"title":2672,"path":2673,"stem":2674},"Паттерни взаємодії","/software-engineering/patterns-of-interaction","09.software-engineering/07.patterns-of-interaction",{"title":2676,"path":2677,"stem":2678},"Евристика проєктування","/software-engineering/design-heuristics","09.software-engineering/08.design-heuristics",{"title":2680,"path":2681,"stem":2682},"Еволюція проєктних рішень","/software-engineering/evolution-of-design-solutions","09.software-engineering/09.evolution-of-design-solutions",{"title":2684,"path":2685,"stem":2686},"EventStorming","/software-engineering/eventstorming","09.software-engineering/10.eventstorming",{"title":2688,"path":2689,"stem":2690},"DDD на практиці","/software-engineering/ddd-in-practice","09.software-engineering/11.ddd-in-practice",{"title":2692,"icon":943,"path":2693,"stem":2694,"children":2695,"page":59},"DDD","/ddd","10.ddd",[2696,2700,2704,2708,2712,2716,2720,2724,2728,2732,2736,2740,2744],{"title":2697,"path":2698,"stem":2699},"Аналіз предметної області","/ddd/domain-analysis","10.ddd/01.domain-analysis",{"title":2701,"path":2702,"stem":2703},"Експертні знання про предметну область","/ddd/domain-expert-knowledge","10.ddd/02.domain-expert-knowledge",{"title":2705,"path":2706,"stem":2707},"Як осмислити складність предметної області","/ddd/managing-domain-complexity","10.ddd/03.managing-domain-complexity",{"title":2709,"path":2710,"stem":2711},"Інтеграція обмежених контекстів","/ddd/bounded-context-integration","10.ddd/04.bounded-context-integration",{"title":2713,"path":2714,"stem":2715},"Реалізація простої бізнес-логіки","/ddd/simple-business-logic","10.ddd/05.simple-business-logic",{"title":2717,"path":2718,"stem":2719},"Обробка складної бізнес-логіки","/ddd/complex-business-logic","10.ddd/06.complex-business-logic",{"title":2721,"path":2722,"stem":2723},"Моделювання фактора часу","/ddd/time-modeling","10.ddd/07.time-modeling",{"title":2725,"path":2726,"stem":2727},"Глава 8. Архітектурні Патерни","/ddd/architectural-patterns","10.ddd/08.architectural-patterns",{"title":2729,"path":2730,"stem":2731},"Глава 9. Патерни Взаємодії","/ddd/interaction-patterns","10.ddd/09.interaction-patterns",{"title":2733,"path":2734,"stem":2735},"Глава 10. Проектні Евристики","/ddd/design-heuristics","10.ddd/10.design-heuristics",{"title":2737,"path":2738,"stem":2739},"Глава 11. Еволюція Проектних Рішень","/ddd/evolution-of-design-decisions","10.ddd/11.evolution-of-design-decisions",{"title":2741,"path":2742,"stem":2743},"Глава 12. EventStorming","/ddd/event-storming","10.ddd/12.event-storming",{"title":2745,"path":2746,"stem":2747},"Глава 13. DDD на Практиці","/ddd/ddd-in-practice","10.ddd/13.ddd-in-practice",{"title":2749,"icon":2750,"path":2751,"stem":2752,"children":2753,"page":59},"Media Streaming","i-lucide-video","/media-streaming","11.media-streaming",[2754,2758,2762,2766,2770,2774,2778],{"title":2755,"path":2756,"stem":2757},"01. Магія Стрімінгу: Що відбувається, коли ви натискаєте \"Play\"","/media-streaming/introduction","11.media-streaming/01.introduction",{"title":2759,"path":2760,"stem":2761},"02. Анатомія Медіа: Кодеки, Контейнери та Стиснення","/media-streaming/audio-video-anatomy","11.media-streaming/02.audio-video-anatomy",{"title":2763,"path":2764,"stem":2765},"03. The Gym: FFmpeg Deep Dive","/media-streaming/ffmpeg-gym","11.media-streaming/03.ffmpeg-gym",{"title":2767,"path":2768,"stem":2769},"04. HLS Protocol: HTTP Live Streaming у Деталях","/media-streaming/hls-protocol","11.media-streaming/04.hls-protocol",{"title":2771,"path":2772,"stem":2773},"05. DASH Protocol: Відкритий Стандарт","/media-streaming/dash-protocol","11.media-streaming/05.dash-protocol",{"title":2775,"path":2776,"stem":2777},"06. Масштабування: CDN та Adaptive Bitrate","/media-streaming/cdn-and-adaptive-bitrate","11.media-streaming/06.cdn-and-adaptive-bitrate",{"title":2779,"path":2780,"stem":2781},"07. Війна із Затримкою (Latency)","/media-streaming/realtime-latency","11.media-streaming/07.realtime-latency",{"title":2783,"icon":2784,"path":2785,"stem":2786,"children":2787,"page":59},"HTML & CSS","i-devicon-html5","/html-css","12.html-css",[2788,2792,2796,2800,2804,2808,2812,2816,2820,2824,2828,2832,2836,2840,2844,2848,2852,2856,2860,2864,2868,2872,2876,2880,2884,2888,2892,2896,2900,2904],{"title":2789,"path":2790,"stem":2791},"Вступ до HTML. Структура документа","/html-css/intro-html-structure","12.html-css/01.intro-html-structure",{"title":2793,"path":2794,"stem":2795},"Форматування тексту в HTML","/html-css/html-text-formatting","12.html-css/02.html-text-formatting",{"title":2797,"path":2798,"stem":2799},"Посилання та зображення в HTML","/html-css/html-links-images","12.html-css/03.html-links-images",{"title":2801,"path":2802,"stem":2803},"Списки та таблиці в HTML","/html-css/html-lists-tables","12.html-css/04.html-lists-tables",{"title":2805,"path":2806,"stem":2807},"Форми в HTML","/html-css/html-forms","12.html-css/05.html-forms",{"title":2809,"path":2810,"stem":2811},"Семантичні елементи HTML5","/html-css/html-semantic-elements","12.html-css/06.html-semantic-elements",{"title":2813,"path":2814,"stem":2815},"Мультимедіа та розширені елементи HTML","/html-css/html-multimedia-advanced","12.html-css/07.html-multimedia-advanced",{"title":2817,"path":2818,"stem":2819},"Мікророзмітка та SEO в HTML","/html-css/html-microdata-seo","12.html-css/08.html-microdata-seo",{"title":2821,"path":2822,"stem":2823},"Вступ до CSS. Селектори та специфічність","/html-css/css-intro-selectors","12.html-css/09.css-intro-selectors",{"title":2825,"path":2826,"stem":2827},"Блокова модель CSS. Відступи. Box Sizing","/html-css/css-box-model","12.html-css/10.css-box-model",{"title":2829,"path":2830,"stem":2831},"Розміри у CSS: повний довідник одиниць і ключових слів","/html-css/10a.css-sizing","12.html-css/10a.css-sizing",{"title":2833,"path":2834,"stem":2835},"Типографіка в CSS. Шрифти та текст","/html-css/css-typography","12.html-css/11.css-typography",{"title":2837,"path":2838,"stem":2839},"Кольори та фони в CSS","/html-css/css-colors-backgrounds","12.html-css/12.css-colors-backgrounds",{"title":2841,"path":2842,"stem":2843},"Тіні та фільтри в CSS","/html-css/12b.css-shadows-filters","12.html-css/12b.css-shadows-filters",{"title":2845,"path":2846,"stem":2847},"CSS Flexbox: Фундамент гнучких макетів","/html-css/css-flexbox-fundamentals","12.html-css/13.css-flexbox-fundamentals",{"title":2849,"path":2850,"stem":2851},"CSS Flexbox: Вирівнювання та Позиціонування","/html-css/css-flexbox-alignment-sizing-and-patterns","12.html-css/14.css-flexbox-alignment-sizing-and-patterns",{"title":2853,"path":2854,"stem":2855},"CSS Grid. Двовимірний макет. Частина 1","/html-css/css-layout-grid","12.html-css/15.css-layout-grid",{"title":2857,"path":2858,"stem":2859},"CSS Grid. Двовимірний макет. Частина 2","/html-css/css-layout-grid-advanced","12.html-css/16.css-layout-grid-advanced",{"title":2861,"path":2862,"stem":2863},"Позиціонування в CSS. Z-index. Stacking Context","/html-css/css-positioning","12.html-css/17.css-positioning",{"title":2865,"path":2866,"stem":2867},"CSS Анімації та Переходи","/html-css/css-animations-transitions","12.html-css/18.css-animations-transitions",{"title":2869,"path":2870,"stem":2871},"Адаптивний дизайн. Media Queries. Частина 1","/html-css/css-responsive-media-queries","12.html-css/19.css-responsive-media-queries",{"title":2873,"path":2874,"stem":2875},"Адаптивний дизайн. Частина 2: clamp(), Container Queries, @layer","/html-css/css-responsive-advanced","12.html-css/20.css-responsive-advanced",{"title":2877,"path":2878,"stem":2879},"CSS Custom Properties. Методології. Сучасний CSS","/html-css/css-variables-methodologies","12.html-css/21.css-variables-methodologies",{"title":2881,"path":2882,"stem":2883},"Сучасний CSS 2023–2025: Нові можливості","/html-css/css-modern-features","12.html-css/22.css-modern-features",{"title":2885,"path":2886,"stem":2887},"CSS Nesting, @layer, @scope та @property: нативний препроцесор","/html-css/22a.css-nesting-modern-syntax","12.html-css/22a.css-nesting-modern-syntax",{"title":2889,"path":2890,"stem":2891},"CSS для форм та інтерактивних станів","/html-css/css-forms-interactive-states","12.html-css/23.css-forms-interactive-states",{"title":2893,"path":2894,"stem":2895},"Доступність у CSS (CSS Accessibility)","/html-css/css-accessibility","12.html-css/24.css-accessibility",{"title":2897,"path":2898,"stem":2899},"CSS-функції та сучасні sizing primitives","/html-css/css-functions-sizing","12.html-css/25.css-functions-sizing",{"title":2901,"path":2902,"stem":2903},"Rendering Pipeline і CSS Performance","/html-css/css-rendering-performance","12.html-css/26.css-rendering-performance",{"title":2905,"path":2906,"stem":2907},"CSS Best Practices: типові ситуації та правильні рішення","/html-css/css-best-practices","12.html-css/27.css-best-practices",{"title":2909,"path":2910,"stem":2911,"children":2912,"page":59},"Tailwind","/tailwind","21.tailwind",[2913,2917,2921,2925,2929,2933,2937,2941],{"title":2914,"path":2915,"stem":2916},"Що таке Tailwind CSS і навіщо він потрібен","/tailwind/tailwind-intro-philosophy","21.tailwind/01.tailwind-intro-philosophy",{"title":2918,"path":2919,"stem":2920},"Встановлення та налаштування Tailwind CSS v4","/tailwind/tailwind-installation-setup","21.tailwind/02.tailwind-installation-setup",{"title":2922,"path":2923,"stem":2924},"Utility-класи: основи та система Tailwind","/tailwind/tailwind-utility-classes-core","21.tailwind/03.tailwind-utility-classes-core",{"title":2926,"path":2927,"stem":2928},"Layout: Flexbox та Grid через Tailwind","/tailwind/tailwind-flexbox-grid","21.tailwind/04.tailwind-flexbox-grid",{"title":2930,"path":2931,"stem":2932},"Кастомізація теми через @theme у Tailwind v4","/tailwind/tailwind-theme-customization","21.tailwind/05.tailwind-theme-customization",{"title":2934,"path":2935,"stem":2936},"Варіанти: hover, focus, responsive, dark mode та нові v4","/tailwind/tailwind-variants-states","21.tailwind/06.tailwind-variants-states",{"title":2938,"path":2939,"stem":2940},"Типографіка та система кольорів у Tailwind v4","/tailwind/tailwind-typography-colors","21.tailwind/07.tailwind-typography-colors",{"title":2942,"path":2943,"stem":2944},"Компоненти та повторюваність: @apply, @utility та патерни","/tailwind/tailwind-components-patterns","21.tailwind/08.tailwind-components-patterns",{"title":2946,"path":2947,"stem":2948},"Showcase Компонентів kostyl.dev","/test-new-components","98.test-new-components",{"id":2950,"title":471,"body":2951,"description":8437,"extension":8438,"links":8439,"meta":8440,"navigation":3293,"path":472,"seo":8441,"stem":473,"__hash__":8442},"docs/01.csharp/10.ef-core/03.dbcontext-deep-dive.md",{"type":2952,"value":2953,"toc":8402},"minimark",[2954,2959,2964,2977,3021,3027,3030,3034,3045,3050,3055,3061,3199,3203,3208,3223,3231,3233,3237,3240,3365,3387,3397,3403,3413,3423,3425,3429,3432,3436,3439,3498,3502,3909,3966,3970,3984,4081,4085,4088,4416,4420,4423,4526,4528,4532,4543,4643,4656,4675,4677,4681,4684,4909,4979,4983,4994,5021,5024,5026,5030,5036,5039,5052,5190,5201,5205,5650,5653,5945,5947,5949,5953,5962,6009,6012,6253,6255,6259,6268,6272,6313,6326,6330,6382,6392,6398,6404,6448,6461,6463,6467,6470,6888,6929,6931,6935,6943,7068,7071,7192,7194,7198,7212,7218,7352,7358,7377,7379,7383,7395,7534,7542,7556,7562,7599,7601,7605,7611,7635,7645,7650,7721,7731,7741,7743,7747,7754,8008,8011,8135,8138,8140,8144,8301,8303,8307,8391,8398],[2955,2956,2958],"h1",{"id":2957},"dbcontext-серце-ef-core","DbContext: Серце EF Core",[2960,2961,2963],"h2",{"id":2962},"чому-важливо-розуміти-dbcontext-зсередини","Чому важливо розуміти DbContext зсередини",[2965,2966,2967,2968,2972,2973,2976],"p",{},"Більшість розробників, що починають з EF Core, ставляться до DbContext як до «чорної скриньки»: викликаєш ",[2969,2970,2971],"code",{},"Add()",", ",[2969,2974,2975],{},"SaveChanges()"," — і все якось зберігається. Поки проєкт простий — це працює. Але перші серйозні проблеми з'являються рівно тоді, коли ця внутрішня механіка стає несподіваною:",[2978,2979,2980,2988,2996,3014],"ul",{},[2981,2982,2983,2984,2987],"li",{},"Чому ж ",[2969,2985,2986],{},"DbContext"," не можна використовувати в кількох потоках паралельно?",[2981,2989,2990,2991,2995],{},"Чому при Scoped-реєстрації два сервіси в одному HTTP-запиті отримують ",[2992,2993,2994],"strong",{},"один і той самий"," контекст?",[2981,2997,2998,2999,3001,3002,3005,3006,3009,3010,3013],{},"Чому після ",[2969,3000,2975],{}," ",[2969,3003,3004],{},"author.Id"," вже заповнений, а ",[2969,3007,3008],{},"book.Author"," — може бути ",[2969,3011,3012],{},"null","?",[2981,3015,3016,3017,3020],{},"Чому ",[2969,3018,3019],{},"using var context = new AppDbContext()"," у Scoped-середовищі — антипатерн?",[2965,3022,3023,3024,3026],{},"Відповіді на всі ці питання — у внутрішній архітектурі ",[2969,3025,2986],{},". Ця стаття знімає «кришку» і показує, що всередині.",[3028,3029],"hr",{},[2960,3031,3033],{"id":3032},"dbcontext-як-два-класичних-патерни","DbContext як два класичних патерни",[2965,3035,3036,3037,3039,3040,3044],{},"Перш ніж дивитись на код, розберемо концептуальну основу. ",[2969,3038,2986],{}," реалізує два фундаментальні патерни з книги Мартіна Фаулера ",[3041,3042,3043],"em",{},"«Patterns of Enterprise Application Architecture»",":",[3046,3047,3049],"h3",{"id":3048},"unit-of-work","Unit of Work",[2965,3051,3052,3054],{},[2992,3053,3049],{}," (одиниця роботи) — патерн, що відстежує всі об'єкти, модифіковані в межах однієї бізнес-транзакції, і координує запис змін до бази даних.",[2965,3056,3057,3058,3060],{},"Ключова ідея: замість того щоб писати в базу при кожній зміні, ви накопичуєте всі зміни в пам'яті, а потім одним ",[2969,3059,2975],{}," атомарно зберігаєте все. Це гарантує узгодженість: або всі зміни зберігаються, або жодна.",[3062,3063,3068],"pre",{"className":3064,"code":3065,"language":3066,"meta":3067,"style":3067},"language-csharp shiki shiki-themes light-plus dark-plus dark-plus","// DbContext як Unit of Work:\n// - відстежує author (Added)\n// - відстежує book (Added)\n// - відстежує existingOrder зі зміненим Status (Modified)\n// Один SaveChanges() зберігає всі три зміни в одній транзакції\ncontext.Authors.Add(author);\ncontext.Books.Add(book);\nexistingOrder.Status = OrderStatus.Completed;\nawait context.SaveChangesAsync(); // атомарно: або все, або нічого\n","csharp","",[2969,3069,3070,3079,3085,3091,3097,3103,3132,3153,3178],{"__ignoreMap":3067},[3071,3072,3075],"span",{"class":3073,"line":3074},"line",1,[3071,3076,3078],{"class":3077},"spJ8K","// DbContext як Unit of Work:\n",[3071,3080,3082],{"class":3073,"line":3081},2,[3071,3083,3084],{"class":3077},"// - відстежує author (Added)\n",[3071,3086,3088],{"class":3073,"line":3087},3,[3071,3089,3090],{"class":3077},"// - відстежує book (Added)\n",[3071,3092,3094],{"class":3073,"line":3093},4,[3071,3095,3096],{"class":3077},"// - відстежує existingOrder зі зміненим Status (Modified)\n",[3071,3098,3100],{"class":3073,"line":3099},5,[3071,3101,3102],{"class":3077},"// Один SaveChanges() зберігає всі три зміни в одній транзакції\n",[3071,3104,3106,3110,3114,3117,3119,3123,3126,3129],{"class":3073,"line":3105},6,[3071,3107,3109],{"class":3108},"siwwj","context",[3071,3111,3113],{"class":3112},"sHH4Y",".",[3071,3115,3116],{"class":3108},"Authors",[3071,3118,3113],{"class":3112},[3071,3120,3122],{"class":3121},"s8Opu","Add",[3071,3124,3125],{"class":3112},"(",[3071,3127,3128],{"class":3108},"author",[3071,3130,3131],{"class":3112},");\n",[3071,3133,3135,3137,3139,3142,3144,3146,3148,3151],{"class":3073,"line":3134},7,[3071,3136,3109],{"class":3108},[3071,3138,3113],{"class":3112},[3071,3140,3141],{"class":3108},"Books",[3071,3143,3113],{"class":3112},[3071,3145,3122],{"class":3121},[3071,3147,3125],{"class":3112},[3071,3149,3150],{"class":3108},"book",[3071,3152,3131],{"class":3112},[3071,3154,3156,3159,3161,3164,3167,3170,3172,3175],{"class":3073,"line":3155},8,[3071,3157,3158],{"class":3108},"existingOrder",[3071,3160,3113],{"class":3112},[3071,3162,3163],{"class":3108},"Status",[3071,3165,3166],{"class":3112}," = ",[3071,3168,3169],{"class":3108},"OrderStatus",[3071,3171,3113],{"class":3112},[3071,3173,3174],{"class":3108},"Completed",[3071,3176,3177],{"class":3112},";\n",[3071,3179,3181,3185,3188,3190,3193,3196],{"class":3073,"line":3180},9,[3071,3182,3184],{"class":3183},"su1O8","await",[3071,3186,3187],{"class":3108}," context",[3071,3189,3113],{"class":3112},[3071,3191,3192],{"class":3121},"SaveChangesAsync",[3071,3194,3195],{"class":3112},"(); ",[3071,3197,3198],{"class":3077},"// атомарно: або все, або нічого\n",[3046,3200,3202],{"id":3201},"repository","Repository",[2965,3204,3205,3207],{},[2992,3206,3202],{}," — патерн, що надає колекційно-подібний інтерфейс для доступу до доменних об'єктів, приховуючи деталі доступу до даних.",[2965,3209,3210,3213,3214,2972,3216,2972,3219,3222],{},[2969,3211,3212],{},"DbSet\u003CT>"," є реалізацією Repository: він виглядає і поводиться як колекція (",[2969,3215,3122],{},[2969,3217,3218],{},"Remove",[2969,3220,3221],{},"Find","), але насправді — це абстракція над SQL-запитами.",[3224,3225,3226,3227,3230],"note",{},"Деякі розробники додають ще один шар Repository поверх DbContext (наприклад, ",[2969,3228,3229],{},"IAuthorRepository","). Ми детально розглянемо питання «чи потрібен Repository над EF Core» у статті про архітектурні патерни (Блок 7). Там є нюанси, але коротка відповідь: у більшості випадків — ні, це зайвий шар.",[3028,3232],{},[2960,3234,3236],{"id":3235},"анатомія-dbcontext-що-всередині","Анатомія DbContext: що всередині",[2965,3238,3239],{},"DbContext — це не монолітний «менеджер бази даних». Він складається з кількох спеціалізованих підсистем:",[3241,3242,3243],"mermaid",{},[3062,3244,3247],{"className":3245,"code":3246,"language":3241,"meta":3067,"style":3067},"language-mermaid shiki shiki-themes light-plus dark-plus dark-plus","graph TD\n    subgraph \"DbContext\"\n        CT[\"🔍 ChangeTracker\u003Cbr/>(відстеження змін)\"]\n        SM[\"📋 StateManager\u003Cbr/>(стан сутностей)\"]\n        QC[\"⚙️ QueryCompiler\u003Cbr/>(LINQ → SQL)\"]\n        DB[\"🔌 DatabaseFacade\u003Cbr/>(з'єднання, транзакції, міграції)\"]\n        MD[\"📐 IModel\u003Cbr/>(скомпільована модель)\"]\n    end\n\n    LINQ[\"LINQ-запит\"] --> QC\n    QC --> DB\n    DB --> DBMS[(\"База даних\")]\n\n    ADD[\"context.Add(entity)\"] --> CT\n    CT --> SM\n    SAVE[\"SaveChanges()\"] --> SM\n    SM --> DB\n\n    style CT fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n    style QC fill:#f59e0b,stroke:#b45309,color:#ffffff\n    style DB fill:#10b981,stroke:#059669,color:#ffffff\n",[2969,3248,3249,3254,3259,3264,3269,3274,3279,3284,3289,3295,3301,3307,3313,3318,3324,3330,3336,3342,3347,3353,3359],{"__ignoreMap":3067},[3071,3250,3251],{"class":3073,"line":3074},[3071,3252,3253],{},"graph TD\n",[3071,3255,3256],{"class":3073,"line":3081},[3071,3257,3258],{},"    subgraph \"DbContext\"\n",[3071,3260,3261],{"class":3073,"line":3087},[3071,3262,3263],{},"        CT[\"🔍 ChangeTracker\u003Cbr/>(відстеження змін)\"]\n",[3071,3265,3266],{"class":3073,"line":3093},[3071,3267,3268],{},"        SM[\"📋 StateManager\u003Cbr/>(стан сутностей)\"]\n",[3071,3270,3271],{"class":3073,"line":3099},[3071,3272,3273],{},"        QC[\"⚙️ QueryCompiler\u003Cbr/>(LINQ → SQL)\"]\n",[3071,3275,3276],{"class":3073,"line":3105},[3071,3277,3278],{},"        DB[\"🔌 DatabaseFacade\u003Cbr/>(з'єднання, транзакції, міграції)\"]\n",[3071,3280,3281],{"class":3073,"line":3134},[3071,3282,3283],{},"        MD[\"📐 IModel\u003Cbr/>(скомпільована модель)\"]\n",[3071,3285,3286],{"class":3073,"line":3155},[3071,3287,3288],{},"    end\n",[3071,3290,3291],{"class":3073,"line":3180},[3071,3292,3294],{"emptyLinePlaceholder":3293},true,"\n",[3071,3296,3298],{"class":3073,"line":3297},10,[3071,3299,3300],{},"    LINQ[\"LINQ-запит\"] --> QC\n",[3071,3302,3304],{"class":3073,"line":3303},11,[3071,3305,3306],{},"    QC --> DB\n",[3071,3308,3310],{"class":3073,"line":3309},12,[3071,3311,3312],{},"    DB --> DBMS[(\"База даних\")]\n",[3071,3314,3316],{"class":3073,"line":3315},13,[3071,3317,3294],{"emptyLinePlaceholder":3293},[3071,3319,3321],{"class":3073,"line":3320},14,[3071,3322,3323],{},"    ADD[\"context.Add(entity)\"] --> CT\n",[3071,3325,3327],{"class":3073,"line":3326},15,[3071,3328,3329],{},"    CT --> SM\n",[3071,3331,3333],{"class":3073,"line":3332},16,[3071,3334,3335],{},"    SAVE[\"SaveChanges()\"] --> SM\n",[3071,3337,3339],{"class":3073,"line":3338},17,[3071,3340,3341],{},"    SM --> DB\n",[3071,3343,3345],{"class":3073,"line":3344},18,[3071,3346,3294],{"emptyLinePlaceholder":3293},[3071,3348,3350],{"class":3073,"line":3349},19,[3071,3351,3352],{},"    style CT fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n",[3071,3354,3356],{"class":3073,"line":3355},20,[3071,3357,3358],{},"    style QC fill:#f59e0b,stroke:#b45309,color:#ffffff\n",[3071,3360,3362],{"class":3073,"line":3361},21,[3071,3363,3364],{},"    style DB fill:#10b981,stroke:#059669,color:#ffffff\n",[2965,3366,3367,3370,3371,2972,3374,2972,3377,2972,3380,2972,3383,3386],{},[2992,3368,3369],{},"ChangeTracker"," — реєструє всі завантажені та додані сутності, відстежує їх стан (",[2969,3372,3373],{},"Added",[2969,3375,3376],{},"Modified",[2969,3378,3379],{},"Deleted",[2969,3381,3382],{},"Unchanged",[2969,3384,3385],{},"Detached",") і зберігає snapshot початкових значень.",[2965,3388,3389,3392,3393,3396],{},[2992,3390,3391],{},"StateManager"," — внутрішній менеджер, що управляє ідентичністю сутностей. Гарантує, що у межах одного DbContext завжди існує ",[2992,3394,3395],{},"тільки один"," екземпляр сутності з конкретним Id (Identity Map).",[2965,3398,3399,3402],{},[2992,3400,3401],{},"QueryCompiler"," — транслює LINQ Expression Trees у SQL для конкретного провайдера. Кешує скомпільовані запити.",[2965,3404,3405,3408,3409,3412],{},[2992,3406,3407],{},"DatabaseFacade"," (",[2969,3410,3411],{},"context.Database",") — API для з'єднань, транзакцій, виконання raw SQL, перевірки/застосування міграцій.",[2965,3414,3415,3418,3419,3422],{},[2992,3416,3417],{},"IModel"," — незмінна (immutable) скомпільована модель, що описує всі сутності, їх конфігурацію, зв'язки. Будується ",[2992,3420,3421],{},"один раз"," при першому використанні і кешується.",[3028,3424],{},[2960,3426,3428],{"id":3427},"changetracker-як-ef-core-бачить-ваші-обєкти","ChangeTracker: як EF Core бачить ваші об'єкти",[2965,3430,3431],{},"ChangeTracker — це серце механізму збереження. Розберемо його детально.",[3046,3433,3435],{"id":3434},"entitystate-пять-станів-сутності","EntityState: п'ять станів сутності",[2965,3437,3438],{},"Кожна сутність, що перебуває під наглядом DbContext, має один із п'яти станів:",[3440,3441,3442,3455,3472,3479,3489],"field-group",{},[3443,3444,3446,3447,3450,3451,3454],"field",{"name":3385,"type":3445},"EntityState","Сутність ",[2992,3448,3449],{},"не відстежується"," контекстом. Нові об'єкти (створені через ",[2969,3452,3453],{},"new",") за замовчуванням є Detached. DbContext нічого не знає про них.",[3443,3456,3457,3458,3461,3462,3464,3465,3468,3469,3113],{"name":3373,"type":3445},"Сутність буде ",[2992,3459,3460],{},"вставлена"," при ",[2969,3463,2975],{},". Встановлюється після ",[2969,3466,3467],{},"context.Add(entity)"," або ",[2969,3470,3471],{},"context.DbSet.Add(entity)",[3443,3473,3474,3475,3478],{"name":3382,"type":3445},"Сутність завантажена з БД і ",[2992,3476,3477],{},"не змінювалась",". SaveChanges() не генерує для неї жодного SQL.",[3443,3480,3481,3482,3485,3486,3113],{"name":3376,"type":3445},"Одне або більше полів сутності ",[2992,3483,3484],{},"змінились"," після завантаження. SaveChanges() згенерує ",[2969,3487,3488],{},"UPDATE",[3443,3490,3457,3491,3494,3495,3113],{"name":3379,"type":3445},[2992,3492,3493],{},"видалена"," при SaveChanges(). Встановлюється після ",[2969,3496,3497],{},"context.Remove(entity)",[3046,3499,3501],{"id":3500},"як-відбувається-перехід-між-станами","Як відбувається перехід між станами?",[3062,3503,3505],{"className":3064,"code":3504,"language":3066,"meta":3067,"style":3067},"// Починаємо — об'єкт Detached\nvar book = new Book { Title = \"Нова книга\", Price = 150m };\nConsole.WriteLine(context.Entry(book).State); // Detached\n\n// Add() → стає Added\ncontext.Books.Add(book);\nConsole.WriteLine(context.Entry(book).State); // Added\n\n// SaveChanges() → стає Unchanged\nawait context.SaveChangesAsync();\nConsole.WriteLine(context.Entry(book).State); // Unchanged\n\n// Змінюємо поле → стає Modified\nbook.Price = 200m;\nConsole.WriteLine(context.Entry(book).State); // Modified\n\n// SaveChanges() → знову Unchanged\nawait context.SaveChangesAsync();\nConsole.WriteLine(context.Entry(book).State); // Unchanged\n\n// Remove() → стає Deleted\ncontext.Books.Remove(book);\nConsole.WriteLine(context.Entry(book).State); // Deleted\n\n// SaveChanges() → об'єкт у Detached (видалений з БД і з трекера)\nawait context.SaveChangesAsync();\nConsole.WriteLine(context.Entry(book).State); // Detached\n",[2969,3506,3507,3512,3554,3589,3593,3598,3616,3645,3649,3654,3667,3696,3700,3705,3720,3749,3753,3758,3770,3798,3802,3807,3826,3856,3861,3867,3880],{"__ignoreMap":3067},[3071,3508,3509],{"class":3073,"line":3074},[3071,3510,3511],{"class":3077},"// Починаємо — об'єкт Detached\n",[3071,3513,3514,3517,3520,3522,3524,3528,3531,3534,3536,3540,3542,3545,3547,3551],{"class":3073,"line":3081},[3071,3515,3516],{"class":3183},"var",[3071,3518,3519],{"class":3108}," book",[3071,3521,3166],{"class":3112},[3071,3523,3453],{"class":3183},[3071,3525,3527],{"class":3526},"sN1BT"," Book",[3071,3529,3530],{"class":3112}," { ",[3071,3532,3533],{"class":3108},"Title",[3071,3535,3166],{"class":3112},[3071,3537,3539],{"class":3538},"sbdoH","\"Нова книга\"",[3071,3541,2972],{"class":3112},[3071,3543,3544],{"class":3108},"Price",[3071,3546,3166],{"class":3112},[3071,3548,3550],{"class":3549},"sJj4R","150m",[3071,3552,3553],{"class":3112}," };\n",[3071,3555,3556,3559,3561,3564,3566,3568,3570,3573,3575,3577,3580,3583,3586],{"class":3073,"line":3087},[3071,3557,3558],{"class":3108},"Console",[3071,3560,3113],{"class":3112},[3071,3562,3563],{"class":3121},"WriteLine",[3071,3565,3125],{"class":3112},[3071,3567,3109],{"class":3108},[3071,3569,3113],{"class":3112},[3071,3571,3572],{"class":3121},"Entry",[3071,3574,3125],{"class":3112},[3071,3576,3150],{"class":3108},[3071,3578,3579],{"class":3112},").",[3071,3581,3582],{"class":3108},"State",[3071,3584,3585],{"class":3112},"); ",[3071,3587,3588],{"class":3077},"// Detached\n",[3071,3590,3591],{"class":3073,"line":3093},[3071,3592,3294],{"emptyLinePlaceholder":3293},[3071,3594,3595],{"class":3073,"line":3099},[3071,3596,3597],{"class":3077},"// Add() → стає Added\n",[3071,3599,3600,3602,3604,3606,3608,3610,3612,3614],{"class":3073,"line":3105},[3071,3601,3109],{"class":3108},[3071,3603,3113],{"class":3112},[3071,3605,3141],{"class":3108},[3071,3607,3113],{"class":3112},[3071,3609,3122],{"class":3121},[3071,3611,3125],{"class":3112},[3071,3613,3150],{"class":3108},[3071,3615,3131],{"class":3112},[3071,3617,3618,3620,3622,3624,3626,3628,3630,3632,3634,3636,3638,3640,3642],{"class":3073,"line":3134},[3071,3619,3558],{"class":3108},[3071,3621,3113],{"class":3112},[3071,3623,3563],{"class":3121},[3071,3625,3125],{"class":3112},[3071,3627,3109],{"class":3108},[3071,3629,3113],{"class":3112},[3071,3631,3572],{"class":3121},[3071,3633,3125],{"class":3112},[3071,3635,3150],{"class":3108},[3071,3637,3579],{"class":3112},[3071,3639,3582],{"class":3108},[3071,3641,3585],{"class":3112},[3071,3643,3644],{"class":3077},"// Added\n",[3071,3646,3647],{"class":3073,"line":3155},[3071,3648,3294],{"emptyLinePlaceholder":3293},[3071,3650,3651],{"class":3073,"line":3180},[3071,3652,3653],{"class":3077},"// SaveChanges() → стає Unchanged\n",[3071,3655,3656,3658,3660,3662,3664],{"class":3073,"line":3297},[3071,3657,3184],{"class":3183},[3071,3659,3187],{"class":3108},[3071,3661,3113],{"class":3112},[3071,3663,3192],{"class":3121},[3071,3665,3666],{"class":3112},"();\n",[3071,3668,3669,3671,3673,3675,3677,3679,3681,3683,3685,3687,3689,3691,3693],{"class":3073,"line":3303},[3071,3670,3558],{"class":3108},[3071,3672,3113],{"class":3112},[3071,3674,3563],{"class":3121},[3071,3676,3125],{"class":3112},[3071,3678,3109],{"class":3108},[3071,3680,3113],{"class":3112},[3071,3682,3572],{"class":3121},[3071,3684,3125],{"class":3112},[3071,3686,3150],{"class":3108},[3071,3688,3579],{"class":3112},[3071,3690,3582],{"class":3108},[3071,3692,3585],{"class":3112},[3071,3694,3695],{"class":3077},"// Unchanged\n",[3071,3697,3698],{"class":3073,"line":3309},[3071,3699,3294],{"emptyLinePlaceholder":3293},[3071,3701,3702],{"class":3073,"line":3315},[3071,3703,3704],{"class":3077},"// Змінюємо поле → стає Modified\n",[3071,3706,3707,3709,3711,3713,3715,3718],{"class":3073,"line":3320},[3071,3708,3150],{"class":3108},[3071,3710,3113],{"class":3112},[3071,3712,3544],{"class":3108},[3071,3714,3166],{"class":3112},[3071,3716,3717],{"class":3549},"200m",[3071,3719,3177],{"class":3112},[3071,3721,3722,3724,3726,3728,3730,3732,3734,3736,3738,3740,3742,3744,3746],{"class":3073,"line":3326},[3071,3723,3558],{"class":3108},[3071,3725,3113],{"class":3112},[3071,3727,3563],{"class":3121},[3071,3729,3125],{"class":3112},[3071,3731,3109],{"class":3108},[3071,3733,3113],{"class":3112},[3071,3735,3572],{"class":3121},[3071,3737,3125],{"class":3112},[3071,3739,3150],{"class":3108},[3071,3741,3579],{"class":3112},[3071,3743,3582],{"class":3108},[3071,3745,3585],{"class":3112},[3071,3747,3748],{"class":3077},"// Modified\n",[3071,3750,3751],{"class":3073,"line":3332},[3071,3752,3294],{"emptyLinePlaceholder":3293},[3071,3754,3755],{"class":3073,"line":3338},[3071,3756,3757],{"class":3077},"// SaveChanges() → знову Unchanged\n",[3071,3759,3760,3762,3764,3766,3768],{"class":3073,"line":3344},[3071,3761,3184],{"class":3183},[3071,3763,3187],{"class":3108},[3071,3765,3113],{"class":3112},[3071,3767,3192],{"class":3121},[3071,3769,3666],{"class":3112},[3071,3771,3772,3774,3776,3778,3780,3782,3784,3786,3788,3790,3792,3794,3796],{"class":3073,"line":3349},[3071,3773,3558],{"class":3108},[3071,3775,3113],{"class":3112},[3071,3777,3563],{"class":3121},[3071,3779,3125],{"class":3112},[3071,3781,3109],{"class":3108},[3071,3783,3113],{"class":3112},[3071,3785,3572],{"class":3121},[3071,3787,3125],{"class":3112},[3071,3789,3150],{"class":3108},[3071,3791,3579],{"class":3112},[3071,3793,3582],{"class":3108},[3071,3795,3585],{"class":3112},[3071,3797,3695],{"class":3077},[3071,3799,3800],{"class":3073,"line":3355},[3071,3801,3294],{"emptyLinePlaceholder":3293},[3071,3803,3804],{"class":3073,"line":3361},[3071,3805,3806],{"class":3077},"// Remove() → стає Deleted\n",[3071,3808,3810,3812,3814,3816,3818,3820,3822,3824],{"class":3073,"line":3809},22,[3071,3811,3109],{"class":3108},[3071,3813,3113],{"class":3112},[3071,3815,3141],{"class":3108},[3071,3817,3113],{"class":3112},[3071,3819,3218],{"class":3121},[3071,3821,3125],{"class":3112},[3071,3823,3150],{"class":3108},[3071,3825,3131],{"class":3112},[3071,3827,3829,3831,3833,3835,3837,3839,3841,3843,3845,3847,3849,3851,3853],{"class":3073,"line":3828},23,[3071,3830,3558],{"class":3108},[3071,3832,3113],{"class":3112},[3071,3834,3563],{"class":3121},[3071,3836,3125],{"class":3112},[3071,3838,3109],{"class":3108},[3071,3840,3113],{"class":3112},[3071,3842,3572],{"class":3121},[3071,3844,3125],{"class":3112},[3071,3846,3150],{"class":3108},[3071,3848,3579],{"class":3112},[3071,3850,3582],{"class":3108},[3071,3852,3585],{"class":3112},[3071,3854,3855],{"class":3077},"// Deleted\n",[3071,3857,3859],{"class":3073,"line":3858},24,[3071,3860,3294],{"emptyLinePlaceholder":3293},[3071,3862,3864],{"class":3073,"line":3863},25,[3071,3865,3866],{"class":3077},"// SaveChanges() → об'єкт у Detached (видалений з БД і з трекера)\n",[3071,3868,3870,3872,3874,3876,3878],{"class":3073,"line":3869},26,[3071,3871,3184],{"class":3183},[3071,3873,3187],{"class":3108},[3071,3875,3113],{"class":3112},[3071,3877,3192],{"class":3121},[3071,3879,3666],{"class":3112},[3071,3881,3883,3885,3887,3889,3891,3893,3895,3897,3899,3901,3903,3905,3907],{"class":3073,"line":3882},27,[3071,3884,3558],{"class":3108},[3071,3886,3113],{"class":3112},[3071,3888,3563],{"class":3121},[3071,3890,3125],{"class":3112},[3071,3892,3109],{"class":3108},[3071,3894,3113],{"class":3112},[3071,3896,3572],{"class":3121},[3071,3898,3125],{"class":3112},[3071,3900,3150],{"class":3108},[3071,3902,3579],{"class":3112},[3071,3904,3582],{"class":3108},[3071,3906,3585],{"class":3112},[3071,3908,3588],{"class":3077},[3241,3910,3911],{},[3062,3912,3914],{"className":3245,"code":3913,"language":3241,"meta":3067,"style":3067},"stateDiagram-v2\n    [*] --> Detached : new Entity()\n    Detached --> Added : context.Add()\n    Added --> Unchanged : SaveChanges()\n    Unchanged --> Modified : зміна властивості\n    Unchanged --> Deleted : context.Remove()\n    Modified --> Unchanged : SaveChanges()\n    Deleted --> Detached : SaveChanges()\n    Unchanged --> Detached : context.Entry().State = Detached\n    Modified --> Detached : context.Entry().State = Detached\n",[2969,3915,3916,3921,3926,3931,3936,3941,3946,3951,3956,3961],{"__ignoreMap":3067},[3071,3917,3918],{"class":3073,"line":3074},[3071,3919,3920],{},"stateDiagram-v2\n",[3071,3922,3923],{"class":3073,"line":3081},[3071,3924,3925],{},"    [*] --> Detached : new Entity()\n",[3071,3927,3928],{"class":3073,"line":3087},[3071,3929,3930],{},"    Detached --> Added : context.Add()\n",[3071,3932,3933],{"class":3073,"line":3093},[3071,3934,3935],{},"    Added --> Unchanged : SaveChanges()\n",[3071,3937,3938],{"class":3073,"line":3099},[3071,3939,3940],{},"    Unchanged --> Modified : зміна властивості\n",[3071,3942,3943],{"class":3073,"line":3105},[3071,3944,3945],{},"    Unchanged --> Deleted : context.Remove()\n",[3071,3947,3948],{"class":3073,"line":3134},[3071,3949,3950],{},"    Modified --> Unchanged : SaveChanges()\n",[3071,3952,3953],{"class":3073,"line":3155},[3071,3954,3955],{},"    Deleted --> Detached : SaveChanges()\n",[3071,3957,3958],{"class":3073,"line":3180},[3071,3959,3960],{},"    Unchanged --> Detached : context.Entry().State = Detached\n",[3071,3962,3963],{"class":3073,"line":3297},[3071,3964,3965],{},"    Modified --> Detached : context.Entry().State = Detached\n",[3046,3967,3969],{"id":3968},"snapshot-based-change-detection","Snapshot-based change detection",[2965,3971,3972,3973,3976,3977,3979,3980,3983],{},"Коли EF Core завантажує сутність із бази, він збирає ",[2992,3974,3975],{},"snapshot"," — точну копію всіх значень у момент завантаження. При ",[2969,3978,2975],{}," (або при явному виклику ",[2969,3981,3982],{},"ChangeTracker.DetectChanges()",") EF Core порівнює поточні значення зі snapshot:",[3062,3985,3987],{"className":3064,"code":3986,"language":3066,"meta":3067,"style":3067},"var book = await context.Books.FindAsync(1);\n// ChangeTracker зберіг snapshot: { Title: \"Захар Беркут\", Price: 150 }\n\nbook.Price = 200m;\n// Поточний стан: { Title: \"Захар Беркут\", Price: 200 }\n// Snapshot:      { Title: \"Захар Беркут\", Price: 150 }\n// DetectChanges знаходить: Price змінено → Modified\n\nawait context.SaveChangesAsync();\n// UPDATE \"Books\" SET \"Price\" = 200 WHERE \"Id\" = 1\n// Тільки змінене поле — не SELECT *!\n",[2969,3988,3989,4017,4022,4026,4040,4045,4050,4055,4059,4071,4076],{"__ignoreMap":3067},[3071,3990,3991,3993,3995,3997,3999,4001,4003,4005,4007,4010,4012,4015],{"class":3073,"line":3074},[3071,3992,3516],{"class":3183},[3071,3994,3519],{"class":3108},[3071,3996,3166],{"class":3112},[3071,3998,3184],{"class":3183},[3071,4000,3187],{"class":3108},[3071,4002,3113],{"class":3112},[3071,4004,3141],{"class":3108},[3071,4006,3113],{"class":3112},[3071,4008,4009],{"class":3121},"FindAsync",[3071,4011,3125],{"class":3112},[3071,4013,4014],{"class":3549},"1",[3071,4016,3131],{"class":3112},[3071,4018,4019],{"class":3073,"line":3081},[3071,4020,4021],{"class":3077},"// ChangeTracker зберіг snapshot: { Title: \"Захар Беркут\", Price: 150 }\n",[3071,4023,4024],{"class":3073,"line":3087},[3071,4025,3294],{"emptyLinePlaceholder":3293},[3071,4027,4028,4030,4032,4034,4036,4038],{"class":3073,"line":3093},[3071,4029,3150],{"class":3108},[3071,4031,3113],{"class":3112},[3071,4033,3544],{"class":3108},[3071,4035,3166],{"class":3112},[3071,4037,3717],{"class":3549},[3071,4039,3177],{"class":3112},[3071,4041,4042],{"class":3073,"line":3099},[3071,4043,4044],{"class":3077},"// Поточний стан: { Title: \"Захар Беркут\", Price: 200 }\n",[3071,4046,4047],{"class":3073,"line":3105},[3071,4048,4049],{"class":3077},"// Snapshot:      { Title: \"Захар Беркут\", Price: 150 }\n",[3071,4051,4052],{"class":3073,"line":3134},[3071,4053,4054],{"class":3077},"// DetectChanges знаходить: Price змінено → Modified\n",[3071,4056,4057],{"class":3073,"line":3155},[3071,4058,3294],{"emptyLinePlaceholder":3293},[3071,4060,4061,4063,4065,4067,4069],{"class":3073,"line":3180},[3071,4062,3184],{"class":3183},[3071,4064,3187],{"class":3108},[3071,4066,3113],{"class":3112},[3071,4068,3192],{"class":3121},[3071,4070,3666],{"class":3112},[3071,4072,4073],{"class":3073,"line":3297},[3071,4074,4075],{"class":3077},"// UPDATE \"Books\" SET \"Price\" = 200 WHERE \"Id\" = 1\n",[3071,4077,4078],{"class":3073,"line":3303},[3071,4079,4080],{"class":3077},"// Тільки змінене поле — не SELECT *!\n",[3046,4082,4084],{"id":4083},"інспекція-changetracker","Інспекція ChangeTracker",[2965,4086,4087],{},"Ви можете в будь-який момент перевірити, що відстежує контекст:",[3062,4089,4091],{"className":3064,"code":4090,"language":3066,"meta":3067,"style":3067},"// Переглянути всі відстежувані сутності\nforeach (var entry in context.ChangeTracker.Entries())\n{\n    Console.WriteLine($\"{entry.Entity.GetType().Name} [{entry.State}]\");\n}\n\n// Або тільки у певному стані\nvar modifiedEntries = context.ChangeTracker\n    .Entries\u003CBook>()\n    .Where(e => e.State == EntityState.Modified)\n    .ToList();\n\n// Отримати оригінальне значення конкретного поля\nvar bookEntry = context.Entry(book);\nvar originalPrice = bookEntry.Property(b => b.Price).OriginalValue;\nvar currentPrice  = bookEntry.Property(b => b.Price).CurrentValue;\nConsole.WriteLine($\"Ціна: {originalPrice} → {currentPrice}\");\n",[2969,4092,4093,4098,4128,4133,4191,4196,4200,4205,4221,4237,4270,4279,4283,4288,4309,4346,4381],{"__ignoreMap":3067},[3071,4094,4095],{"class":3073,"line":3074},[3071,4096,4097],{"class":3077},"// Переглянути всі відстежувані сутності\n",[3071,4099,4100,4104,4106,4108,4111,4114,4116,4118,4120,4122,4125],{"class":3073,"line":3081},[3071,4101,4103],{"class":4102},"sCDza","foreach",[3071,4105,3408],{"class":3112},[3071,4107,3516],{"class":3183},[3071,4109,4110],{"class":3108}," entry",[3071,4112,4113],{"class":4102}," in",[3071,4115,3187],{"class":3108},[3071,4117,3113],{"class":3112},[3071,4119,3369],{"class":3108},[3071,4121,3113],{"class":3112},[3071,4123,4124],{"class":3121},"Entries",[3071,4126,4127],{"class":3112},"())\n",[3071,4129,4130],{"class":3073,"line":3087},[3071,4131,4132],{"class":3112},"{\n",[3071,4134,4135,4138,4140,4142,4144,4147,4151,4154,4156,4159,4161,4164,4167,4170,4173,4176,4178,4180,4182,4184,4186,4189],{"class":3073,"line":3093},[3071,4136,4137],{"class":3108},"    Console",[3071,4139,3113],{"class":3112},[3071,4141,3563],{"class":3121},[3071,4143,3125],{"class":3112},[3071,4145,4146],{"class":3538},"$\"",[3071,4148,4150],{"class":4149},"sD7JJ","{",[3071,4152,4153],{"class":3108},"entry",[3071,4155,3113],{"class":4149},[3071,4157,4158],{"class":3108},"Entity",[3071,4160,3113],{"class":4149},[3071,4162,4163],{"class":3121},"GetType",[3071,4165,4166],{"class":4149},"().",[3071,4168,4169],{"class":3108},"Name",[3071,4171,4172],{"class":4149},"}",[3071,4174,4175],{"class":3538}," [",[3071,4177,4150],{"class":4149},[3071,4179,4153],{"class":3108},[3071,4181,3113],{"class":4149},[3071,4183,3582],{"class":3108},[3071,4185,4172],{"class":4149},[3071,4187,4188],{"class":3538},"]\"",[3071,4190,3131],{"class":3112},[3071,4192,4193],{"class":3073,"line":3099},[3071,4194,4195],{"class":3112},"}\n",[3071,4197,4198],{"class":3073,"line":3105},[3071,4199,3294],{"emptyLinePlaceholder":3293},[3071,4201,4202],{"class":3073,"line":3134},[3071,4203,4204],{"class":3077},"// Або тільки у певному стані\n",[3071,4206,4207,4209,4212,4214,4216,4218],{"class":3073,"line":3155},[3071,4208,3516],{"class":3183},[3071,4210,4211],{"class":3108}," modifiedEntries",[3071,4213,3166],{"class":3112},[3071,4215,3109],{"class":3108},[3071,4217,3113],{"class":3112},[3071,4219,4220],{"class":3108},"ChangeTracker\n",[3071,4222,4223,4226,4228,4231,4234],{"class":3073,"line":3180},[3071,4224,4225],{"class":3112},"    .",[3071,4227,4124],{"class":3121},[3071,4229,4230],{"class":3112},"\u003C",[3071,4232,4233],{"class":3526},"Book",[3071,4235,4236],{"class":3112},">()\n",[3071,4238,4239,4241,4244,4246,4249,4252,4254,4256,4258,4261,4263,4265,4267],{"class":3073,"line":3297},[3071,4240,4225],{"class":3112},[3071,4242,4243],{"class":3121},"Where",[3071,4245,3125],{"class":3112},[3071,4247,4248],{"class":3108},"e",[3071,4250,4251],{"class":3112}," => ",[3071,4253,4248],{"class":3108},[3071,4255,3113],{"class":3112},[3071,4257,3582],{"class":3108},[3071,4259,4260],{"class":3112}," == ",[3071,4262,3445],{"class":3108},[3071,4264,3113],{"class":3112},[3071,4266,3376],{"class":3108},[3071,4268,4269],{"class":3112},")\n",[3071,4271,4272,4274,4277],{"class":3073,"line":3303},[3071,4273,4225],{"class":3112},[3071,4275,4276],{"class":3121},"ToList",[3071,4278,3666],{"class":3112},[3071,4280,4281],{"class":3073,"line":3309},[3071,4282,3294],{"emptyLinePlaceholder":3293},[3071,4284,4285],{"class":3073,"line":3315},[3071,4286,4287],{"class":3077},"// Отримати оригінальне значення конкретного поля\n",[3071,4289,4290,4292,4295,4297,4299,4301,4303,4305,4307],{"class":3073,"line":3320},[3071,4291,3516],{"class":3183},[3071,4293,4294],{"class":3108}," bookEntry",[3071,4296,3166],{"class":3112},[3071,4298,3109],{"class":3108},[3071,4300,3113],{"class":3112},[3071,4302,3572],{"class":3121},[3071,4304,3125],{"class":3112},[3071,4306,3150],{"class":3108},[3071,4308,3131],{"class":3112},[3071,4310,4311,4313,4316,4318,4321,4323,4326,4328,4331,4333,4335,4337,4339,4341,4344],{"class":3073,"line":3326},[3071,4312,3516],{"class":3183},[3071,4314,4315],{"class":3108}," originalPrice",[3071,4317,3166],{"class":3112},[3071,4319,4320],{"class":3108},"bookEntry",[3071,4322,3113],{"class":3112},[3071,4324,4325],{"class":3121},"Property",[3071,4327,3125],{"class":3112},[3071,4329,4330],{"class":3108},"b",[3071,4332,4251],{"class":3112},[3071,4334,4330],{"class":3108},[3071,4336,3113],{"class":3112},[3071,4338,3544],{"class":3108},[3071,4340,3579],{"class":3112},[3071,4342,4343],{"class":3108},"OriginalValue",[3071,4345,3177],{"class":3112},[3071,4347,4348,4350,4353,4356,4358,4360,4362,4364,4366,4368,4370,4372,4374,4376,4379],{"class":3073,"line":3332},[3071,4349,3516],{"class":3183},[3071,4351,4352],{"class":3108}," currentPrice",[3071,4354,4355],{"class":3112},"  = ",[3071,4357,4320],{"class":3108},[3071,4359,3113],{"class":3112},[3071,4361,4325],{"class":3121},[3071,4363,3125],{"class":3112},[3071,4365,4330],{"class":3108},[3071,4367,4251],{"class":3112},[3071,4369,4330],{"class":3108},[3071,4371,3113],{"class":3112},[3071,4373,3544],{"class":3108},[3071,4375,3579],{"class":3112},[3071,4377,4378],{"class":3108},"CurrentValue",[3071,4380,3177],{"class":3112},[3071,4382,4383,4385,4387,4389,4391,4394,4396,4399,4401,4404,4406,4409,4411,4414],{"class":3073,"line":3338},[3071,4384,3558],{"class":3108},[3071,4386,3113],{"class":3112},[3071,4388,3563],{"class":3121},[3071,4390,3125],{"class":3112},[3071,4392,4393],{"class":3538},"$\"Ціна: ",[3071,4395,4150],{"class":4149},[3071,4397,4398],{"class":3108},"originalPrice",[3071,4400,4172],{"class":4149},[3071,4402,4403],{"class":3538}," → ",[3071,4405,4150],{"class":4149},[3071,4407,4408],{"class":3108},"currentPrice",[3071,4410,4172],{"class":4149},[3071,4412,4413],{"class":3538},"\"",[3071,4415,3131],{"class":3112},[3046,4417,4419],{"id":4418},"debugview-ваш-кращий-друг-при-відлагодженні","DebugView: ваш кращий друг при відлагодженні",[2965,4421,4422],{},"EF Core 5+ надає зручний текстовий snapshot стану ChangeTracker:",[3062,4424,4426],{"className":3064,"code":4425,"language":3066,"meta":3067,"style":3067},"// Коротке представлення\nConsole.WriteLine(context.ChangeTracker.DebugView.ShortView);\n// Book {Id: 1} Unchanged\n\n// Розгорнуте представлення (всі властивості)\nConsole.WriteLine(context.ChangeTracker.DebugView.LongView);\n// Book {Id: 1} Unchanged\n//   Id: 1 PK\n//   Title: 'Захар Беркут'\n//   Price: 200 Modified Originally 150\n//   AuthorId: 1 FK\n",[2969,4427,4428,4433,4461,4466,4470,4475,4502,4506,4511,4516,4521],{"__ignoreMap":3067},[3071,4429,4430],{"class":3073,"line":3074},[3071,4431,4432],{"class":3077},"// Коротке представлення\n",[3071,4434,4435,4437,4439,4441,4443,4445,4447,4449,4451,4454,4456,4459],{"class":3073,"line":3081},[3071,4436,3558],{"class":3108},[3071,4438,3113],{"class":3112},[3071,4440,3563],{"class":3121},[3071,4442,3125],{"class":3112},[3071,4444,3109],{"class":3108},[3071,4446,3113],{"class":3112},[3071,4448,3369],{"class":3108},[3071,4450,3113],{"class":3112},[3071,4452,4453],{"class":3108},"DebugView",[3071,4455,3113],{"class":3112},[3071,4457,4458],{"class":3108},"ShortView",[3071,4460,3131],{"class":3112},[3071,4462,4463],{"class":3073,"line":3087},[3071,4464,4465],{"class":3077},"// Book {Id: 1} Unchanged\n",[3071,4467,4468],{"class":3073,"line":3093},[3071,4469,3294],{"emptyLinePlaceholder":3293},[3071,4471,4472],{"class":3073,"line":3099},[3071,4473,4474],{"class":3077},"// Розгорнуте представлення (всі властивості)\n",[3071,4476,4477,4479,4481,4483,4485,4487,4489,4491,4493,4495,4497,4500],{"class":3073,"line":3105},[3071,4478,3558],{"class":3108},[3071,4480,3113],{"class":3112},[3071,4482,3563],{"class":3121},[3071,4484,3125],{"class":3112},[3071,4486,3109],{"class":3108},[3071,4488,3113],{"class":3112},[3071,4490,3369],{"class":3108},[3071,4492,3113],{"class":3112},[3071,4494,4453],{"class":3108},[3071,4496,3113],{"class":3112},[3071,4498,4499],{"class":3108},"LongView",[3071,4501,3131],{"class":3112},[3071,4503,4504],{"class":3073,"line":3134},[3071,4505,4465],{"class":3077},[3071,4507,4508],{"class":3073,"line":3155},[3071,4509,4510],{"class":3077},"//   Id: 1 PK\n",[3071,4512,4513],{"class":3073,"line":3180},[3071,4514,4515],{"class":3077},"//   Title: 'Захар Беркут'\n",[3071,4517,4518],{"class":3073,"line":3297},[3071,4519,4520],{"class":3077},"//   Price: 200 Modified Originally 150\n",[3071,4522,4523],{"class":3073,"line":3303},[3071,4524,4525],{"class":3077},"//   AuthorId: 1 FK\n",[3028,4527],{},[2960,4529,4531],{"id":4530},"identity-map-чому-один-обєкт-один-екземпляр","Identity Map: чому один об'єкт — один екземпляр",[2965,4533,4534,4535,4538,4539,4542],{},"StateManager реалізує патерн ",[2992,4536,4537],{},"Identity Map",": у межах одного DbContext завжди існує лише ",[2992,4540,4541],{},"один"," екземпляр конкретної сутності за її первинним ключем.",[3062,4544,4546],{"className":3064,"code":4545,"language":3066,"meta":3067,"style":3067},"// Обидва запити повертають один і той самий об'єкт у пам'яті\nvar book1 = await context.Books.FindAsync(1);\nvar book2 = await context.Books.FindAsync(1); // другий запит до БД не йде!\n\nConsole.WriteLine(ReferenceEquals(book1, book2)); // True!\n",[2969,4547,4548,4553,4580,4610,4614],{"__ignoreMap":3067},[3071,4549,4550],{"class":3073,"line":3074},[3071,4551,4552],{"class":3077},"// Обидва запити повертають один і той самий об'єкт у пам'яті\n",[3071,4554,4555,4557,4560,4562,4564,4566,4568,4570,4572,4574,4576,4578],{"class":3073,"line":3081},[3071,4556,3516],{"class":3183},[3071,4558,4559],{"class":3108}," book1",[3071,4561,3166],{"class":3112},[3071,4563,3184],{"class":3183},[3071,4565,3187],{"class":3108},[3071,4567,3113],{"class":3112},[3071,4569,3141],{"class":3108},[3071,4571,3113],{"class":3112},[3071,4573,4009],{"class":3121},[3071,4575,3125],{"class":3112},[3071,4577,4014],{"class":3549},[3071,4579,3131],{"class":3112},[3071,4581,4582,4584,4587,4589,4591,4593,4595,4597,4599,4601,4603,4605,4607],{"class":3073,"line":3087},[3071,4583,3516],{"class":3183},[3071,4585,4586],{"class":3108}," book2",[3071,4588,3166],{"class":3112},[3071,4590,3184],{"class":3183},[3071,4592,3187],{"class":3108},[3071,4594,3113],{"class":3112},[3071,4596,3141],{"class":3108},[3071,4598,3113],{"class":3112},[3071,4600,4009],{"class":3121},[3071,4602,3125],{"class":3112},[3071,4604,4014],{"class":3549},[3071,4606,3585],{"class":3112},[3071,4608,4609],{"class":3077},"// другий запит до БД не йде!\n",[3071,4611,4612],{"class":3073,"line":3093},[3071,4613,3294],{"emptyLinePlaceholder":3293},[3071,4615,4616,4618,4620,4622,4624,4627,4629,4632,4634,4637,4640],{"class":3073,"line":3099},[3071,4617,3558],{"class":3108},[3071,4619,3113],{"class":3112},[3071,4621,3563],{"class":3121},[3071,4623,3125],{"class":3112},[3071,4625,4626],{"class":3121},"ReferenceEquals",[3071,4628,3125],{"class":3112},[3071,4630,4631],{"class":3108},"book1",[3071,4633,2972],{"class":3112},[3071,4635,4636],{"class":3108},"book2",[3071,4638,4639],{"class":3112},")); ",[3071,4641,4642],{"class":3077},"// True!\n",[2965,4644,4645,4647,4648,4651,4652,4655],{},[2969,4646,4009],{}," перевіряє ChangeTracker перед відправкою запиту: якщо сутність вже завантажена — повертає існуючий екземпляр. Це важливо для консистентності: якщо ви змінили ",[2969,4649,4650],{},"book1.Price",", то ",[2969,4653,4654],{},"book2.Price"," відображає ту саму зміну, бо це один і той самий об'єкт.",[4657,4658,4659,4660,2972,4663,4666,4667,4670,4671,4674],"tip",{},"LINQ-запити через ",[2969,4661,4662],{},"Where()",[2969,4664,4665],{},"FirstOrDefault()"," тощо ",[2992,4668,4669],{},"не мають"," такої поведінки за замовчуванням — вони завжди ходять у БД. Але після отримання результату EF Core перевіряє Identity Map: якщо об'єкт із таким Id вже є в ChangeTracker — повертає ",[2992,4672,4673],{},"існуючий"," відстежуваний об'єкт, а не новий. Це може здивувати, якщо ви очікуєте «свіжі» дані з БД.",[3028,4676],{},[2960,4678,4680],{"id":4679},"lifecycle-dbcontext-від-народження-до-dispose","Lifecycle DbContext: від народження до dispose",[2965,4682,4683],{},"Розуміння lifecycle критично для правильного використання DbContext.",[3062,4685,4687],{"className":3064,"code":4686,"language":3066,"meta":3067,"style":3067},"// --- НАРОДЖЕННЯ ---\nusing var context = new AppDbContext(options);\n// IModel вже скомпільована (кешується між екземплярами)\n// ChangeTracker порожній\n// З'єднання з БД ще не відкрите (lazy)\n\n// --- ПЕРШЕ ВИКОРИСТАННЯ ---\nvar books = await context.Books.ToListAsync();\n// Відкривається з'єднання\n// Виконується SQL\n// Результати реєструються в ChangeTracker\n// З'єднання повертається в пул (не закривається між операціями!)\n\n// --- АКТИВНА РОБОТА ---\nvar book = books.First();\nbook.Price = 250m; // ChangeTracker фіксує зміну\ncontext.Authors.Add(new Author { Name = \"Леся Українка\" }); // Added\nawait context.SaveChangesAsync(); // транзакція, SQL, state reset\n\n// --- DISPOSE ---\n// 'using' викликає context.Dispose()\n// ChangeTracker очищується\n// З'єднання повертається в пул (ConnectionPool)\n// IModel НЕ видаляється — вона кешована статично\n",[2969,4688,4689,4694,4718,4723,4728,4733,4737,4742,4766,4771,4776,4781,4786,4790,4795,4813,4832,4865,4880,4884,4889,4894,4899,4904],{"__ignoreMap":3067},[3071,4690,4691],{"class":3073,"line":3074},[3071,4692,4693],{"class":3077},"// --- НАРОДЖЕННЯ ---\n",[3071,4695,4696,4699,4702,4704,4706,4708,4711,4713,4716],{"class":3073,"line":3081},[3071,4697,4698],{"class":4102},"using",[3071,4700,4701],{"class":3183}," var",[3071,4703,3187],{"class":3108},[3071,4705,3166],{"class":3112},[3071,4707,3453],{"class":3183},[3071,4709,4710],{"class":3526}," AppDbContext",[3071,4712,3125],{"class":3112},[3071,4714,4715],{"class":3108},"options",[3071,4717,3131],{"class":3112},[3071,4719,4720],{"class":3073,"line":3087},[3071,4721,4722],{"class":3077},"// IModel вже скомпільована (кешується між екземплярами)\n",[3071,4724,4725],{"class":3073,"line":3093},[3071,4726,4727],{"class":3077},"// ChangeTracker порожній\n",[3071,4729,4730],{"class":3073,"line":3099},[3071,4731,4732],{"class":3077},"// З'єднання з БД ще не відкрите (lazy)\n",[3071,4734,4735],{"class":3073,"line":3105},[3071,4736,3294],{"emptyLinePlaceholder":3293},[3071,4738,4739],{"class":3073,"line":3134},[3071,4740,4741],{"class":3077},"// --- ПЕРШЕ ВИКОРИСТАННЯ ---\n",[3071,4743,4744,4746,4749,4751,4753,4755,4757,4759,4761,4764],{"class":3073,"line":3155},[3071,4745,3516],{"class":3183},[3071,4747,4748],{"class":3108}," books",[3071,4750,3166],{"class":3112},[3071,4752,3184],{"class":3183},[3071,4754,3187],{"class":3108},[3071,4756,3113],{"class":3112},[3071,4758,3141],{"class":3108},[3071,4760,3113],{"class":3112},[3071,4762,4763],{"class":3121},"ToListAsync",[3071,4765,3666],{"class":3112},[3071,4767,4768],{"class":3073,"line":3180},[3071,4769,4770],{"class":3077},"// Відкривається з'єднання\n",[3071,4772,4773],{"class":3073,"line":3297},[3071,4774,4775],{"class":3077},"// Виконується SQL\n",[3071,4777,4778],{"class":3073,"line":3303},[3071,4779,4780],{"class":3077},"// Результати реєструються в ChangeTracker\n",[3071,4782,4783],{"class":3073,"line":3309},[3071,4784,4785],{"class":3077},"// З'єднання повертається в пул (не закривається між операціями!)\n",[3071,4787,4788],{"class":3073,"line":3315},[3071,4789,3294],{"emptyLinePlaceholder":3293},[3071,4791,4792],{"class":3073,"line":3320},[3071,4793,4794],{"class":3077},"// --- АКТИВНА РОБОТА ---\n",[3071,4796,4797,4799,4801,4803,4806,4808,4811],{"class":3073,"line":3326},[3071,4798,3516],{"class":3183},[3071,4800,3519],{"class":3108},[3071,4802,3166],{"class":3112},[3071,4804,4805],{"class":3108},"books",[3071,4807,3113],{"class":3112},[3071,4809,4810],{"class":3121},"First",[3071,4812,3666],{"class":3112},[3071,4814,4815,4817,4819,4821,4823,4826,4829],{"class":3073,"line":3332},[3071,4816,3150],{"class":3108},[3071,4818,3113],{"class":3112},[3071,4820,3544],{"class":3108},[3071,4822,3166],{"class":3112},[3071,4824,4825],{"class":3549},"250m",[3071,4827,4828],{"class":3112},"; ",[3071,4830,4831],{"class":3077},"// ChangeTracker фіксує зміну\n",[3071,4833,4834,4836,4838,4840,4842,4844,4846,4848,4851,4853,4855,4857,4860,4863],{"class":3073,"line":3338},[3071,4835,3109],{"class":3108},[3071,4837,3113],{"class":3112},[3071,4839,3116],{"class":3108},[3071,4841,3113],{"class":3112},[3071,4843,3122],{"class":3121},[3071,4845,3125],{"class":3112},[3071,4847,3453],{"class":3183},[3071,4849,4850],{"class":3526}," Author",[3071,4852,3530],{"class":3112},[3071,4854,4169],{"class":3108},[3071,4856,3166],{"class":3112},[3071,4858,4859],{"class":3538},"\"Леся Українка\"",[3071,4861,4862],{"class":3112}," }); ",[3071,4864,3644],{"class":3077},[3071,4866,4867,4869,4871,4873,4875,4877],{"class":3073,"line":3344},[3071,4868,3184],{"class":3183},[3071,4870,3187],{"class":3108},[3071,4872,3113],{"class":3112},[3071,4874,3192],{"class":3121},[3071,4876,3195],{"class":3112},[3071,4878,4879],{"class":3077},"// транзакція, SQL, state reset\n",[3071,4881,4882],{"class":3073,"line":3349},[3071,4883,3294],{"emptyLinePlaceholder":3293},[3071,4885,4886],{"class":3073,"line":3355},[3071,4887,4888],{"class":3077},"// --- DISPOSE ---\n",[3071,4890,4891],{"class":3073,"line":3361},[3071,4892,4893],{"class":3077},"// 'using' викликає context.Dispose()\n",[3071,4895,4896],{"class":3073,"line":3809},[3071,4897,4898],{"class":3077},"// ChangeTracker очищується\n",[3071,4900,4901],{"class":3073,"line":3828},[3071,4902,4903],{"class":3077},"// З'єднання повертається в пул (ConnectionPool)\n",[3071,4905,4906],{"class":3073,"line":3858},[3071,4907,4908],{"class":3077},"// IModel НЕ видаляється — вона кешована статично\n",[3241,4910,4911],{},[3062,4912,4914],{"className":3245,"code":4913,"language":3241,"meta":3067,"style":3067},"graph LR\n    A[\"🔨 new DbContext()\u003Cbr/>ChangeTracker: порожній\u003Cbr/>Model: завантажена з кешу\"]\n    B[\"📖 Перший запит\u003Cbr/>Відкриття з'єднання\u003Cbr/>SQL виконується\u003Cbr/>Об'єкти в ChangeTracker\"]\n    C[\"✏️ Зміни\u003Cbr/>ChangeTracker відстежує\u003Cbr/>Entity states змінюються\"]\n    D[\"💾 SaveChanges()\u003Cbr/>DetectChanges\u003Cbr/>SQL генерація\u003Cbr/>Транзакція\u003Cbr/>State reset\"]\n    E[\"🗑️ Dispose()\u003Cbr/>ChangeTracker очищено\u003Cbr/>З'єднання в пул\"]\n\n    A --> B --> C --> D --> C\n    D --> E\n\n    style A fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n    style D fill:#f59e0b,stroke:#b45309,color:#ffffff\n    style E fill:#64748b,stroke:#334155,color:#ffffff\n",[2969,4915,4916,4921,4926,4931,4936,4941,4946,4950,4955,4960,4964,4969,4974],{"__ignoreMap":3067},[3071,4917,4918],{"class":3073,"line":3074},[3071,4919,4920],{},"graph LR\n",[3071,4922,4923],{"class":3073,"line":3081},[3071,4924,4925],{},"    A[\"🔨 new DbContext()\u003Cbr/>ChangeTracker: порожній\u003Cbr/>Model: завантажена з кешу\"]\n",[3071,4927,4928],{"class":3073,"line":3087},[3071,4929,4930],{},"    B[\"📖 Перший запит\u003Cbr/>Відкриття з'єднання\u003Cbr/>SQL виконується\u003Cbr/>Об'єкти в ChangeTracker\"]\n",[3071,4932,4933],{"class":3073,"line":3093},[3071,4934,4935],{},"    C[\"✏️ Зміни\u003Cbr/>ChangeTracker відстежує\u003Cbr/>Entity states змінюються\"]\n",[3071,4937,4938],{"class":3073,"line":3099},[3071,4939,4940],{},"    D[\"💾 SaveChanges()\u003Cbr/>DetectChanges\u003Cbr/>SQL генерація\u003Cbr/>Транзакція\u003Cbr/>State reset\"]\n",[3071,4942,4943],{"class":3073,"line":3105},[3071,4944,4945],{},"    E[\"🗑️ Dispose()\u003Cbr/>ChangeTracker очищено\u003Cbr/>З'єднання в пул\"]\n",[3071,4947,4948],{"class":3073,"line":3134},[3071,4949,3294],{"emptyLinePlaceholder":3293},[3071,4951,4952],{"class":3073,"line":3155},[3071,4953,4954],{},"    A --> B --> C --> D --> C\n",[3071,4956,4957],{"class":3073,"line":3180},[3071,4958,4959],{},"    D --> E\n",[3071,4961,4962],{"class":3073,"line":3297},[3071,4963,3294],{"emptyLinePlaceholder":3293},[3071,4965,4966],{"class":3073,"line":3303},[3071,4967,4968],{},"    style A fill:#3b82f6,stroke:#1d4ed8,color:#ffffff\n",[3071,4970,4971],{"class":3073,"line":3309},[3071,4972,4973],{},"    style D fill:#f59e0b,stroke:#b45309,color:#ffffff\n",[3071,4975,4976],{"class":3073,"line":3315},[3071,4977,4978],{},"    style E fill:#64748b,stroke:#334155,color:#ffffff\n",[3046,4980,4982],{"id":4981},"зєднання-та-connection-pooling","З'єднання та Connection Pooling",[2965,4984,4985,4986,4989,4990,4993],{},"EF Core ",[2992,4987,4988],{},"не тримає відкрите з'єднання"," весь час. Він використовує ",[2992,4991,4992],{},"Connection Pool"," — пул з'єднань, що керується ADO.NET під капотом. Це означає:",[2978,4995,4996,5003,5010],{},[2981,4997,4998,4999,5002],{},"При першому запиті з'єднання ",[2992,5000,5001],{},"береться з пулу"," (або створюється)",[2981,5004,5005,5006,5009],{},"Між окремими SQL-командами з'єднання може ",[2992,5007,5008],{},"повертатись"," у пул",[2981,5011,5012,5013,5016,5017,5020],{},"При ",[2969,5014,5015],{},"Dispose()"," з'єднання повертається в пул, але ",[2992,5018,5019],{},"не закривається"," фізично",[2965,5022,5023],{},"Завдяки цьому ви не платите за накладні витрати фізичного TCP-з'єднання при кожному запиті.",[3028,5025],{},[2960,5027,5029],{"id":5028},"thread-safety-чому-dbcontext-не-є-потокобезпечним","Thread Safety: чому DbContext не є потокобезпечним",[5031,5032,5033],"blockquote",{},[2965,5034,5035],{},"DbContext не є thread-safe. Ніколи не використовуйте один екземпляр DbContext у кількох паралельних операціях.",[2965,5037,5038],{},"Це офіційне формулювання з документації Microsoft. Розберемо чому.",[2965,5040,5041,5042,2972,5045,5048,5049,3044],{},"ChangeTracker, StateManager та інші внутрішні стани DbContext не захищені примітивами синхронізації (",[2969,5043,5044],{},"lock",[2969,5046,5047],{},"Mutex"," тощо). Вони є простими колекціями і об'єктами в пам'яті. При паралельному доступі виникає ",[2992,5050,5051],{},"race condition",[3062,5053,5055],{"className":3064,"code":5054,"language":3066,"meta":3067,"style":3067},"// ❌ НЕПРАВИЛЬНО: два паралельних запити до одного контексту\nvar context = new AppDbContext(); // один екземпляр\n\nvar task1 = context.Books.Where(b => b.Price > 100).ToListAsync();\nvar task2 = context.Authors.ToListAsync();\n\n// InvalidOperationException:\n// \"A second operation was started on this context instance before\n//  a previous operation completed.\"\nawait Task.WhenAll(task1, task2);\n",[2969,5056,5057,5062,5079,5083,5126,5147,5151,5156,5161,5166],{"__ignoreMap":3067},[3071,5058,5059],{"class":3073,"line":3074},[3071,5060,5061],{"class":3077},"// ❌ НЕПРАВИЛЬНО: два паралельних запити до одного контексту\n",[3071,5063,5064,5066,5068,5070,5072,5074,5076],{"class":3073,"line":3081},[3071,5065,3516],{"class":3183},[3071,5067,3187],{"class":3108},[3071,5069,3166],{"class":3112},[3071,5071,3453],{"class":3183},[3071,5073,4710],{"class":3526},[3071,5075,3195],{"class":3112},[3071,5077,5078],{"class":3077},"// один екземпляр\n",[3071,5080,5081],{"class":3073,"line":3087},[3071,5082,3294],{"emptyLinePlaceholder":3293},[3071,5084,5085,5087,5090,5092,5094,5096,5098,5100,5102,5104,5106,5108,5110,5112,5114,5117,5120,5122,5124],{"class":3073,"line":3093},[3071,5086,3516],{"class":3183},[3071,5088,5089],{"class":3108}," task1",[3071,5091,3166],{"class":3112},[3071,5093,3109],{"class":3108},[3071,5095,3113],{"class":3112},[3071,5097,3141],{"class":3108},[3071,5099,3113],{"class":3112},[3071,5101,4243],{"class":3121},[3071,5103,3125],{"class":3112},[3071,5105,4330],{"class":3108},[3071,5107,4251],{"class":3112},[3071,5109,4330],{"class":3108},[3071,5111,3113],{"class":3112},[3071,5113,3544],{"class":3108},[3071,5115,5116],{"class":3112}," > ",[3071,5118,5119],{"class":3549},"100",[3071,5121,3579],{"class":3112},[3071,5123,4763],{"class":3121},[3071,5125,3666],{"class":3112},[3071,5127,5128,5130,5133,5135,5137,5139,5141,5143,5145],{"class":3073,"line":3099},[3071,5129,3516],{"class":3183},[3071,5131,5132],{"class":3108}," task2",[3071,5134,3166],{"class":3112},[3071,5136,3109],{"class":3108},[3071,5138,3113],{"class":3112},[3071,5140,3116],{"class":3108},[3071,5142,3113],{"class":3112},[3071,5144,4763],{"class":3121},[3071,5146,3666],{"class":3112},[3071,5148,5149],{"class":3073,"line":3105},[3071,5150,3294],{"emptyLinePlaceholder":3293},[3071,5152,5153],{"class":3073,"line":3134},[3071,5154,5155],{"class":3077},"// InvalidOperationException:\n",[3071,5157,5158],{"class":3073,"line":3155},[3071,5159,5160],{"class":3077},"// \"A second operation was started on this context instance before\n",[3071,5162,5163],{"class":3073,"line":3180},[3071,5164,5165],{"class":3077},"//  a previous operation completed.\"\n",[3071,5167,5168,5170,5173,5175,5178,5180,5183,5185,5188],{"class":3073,"line":3297},[3071,5169,3184],{"class":3183},[3071,5171,5172],{"class":3108}," Task",[3071,5174,3113],{"class":3112},[3071,5176,5177],{"class":3121},"WhenAll",[3071,5179,3125],{"class":3112},[3071,5181,5182],{"class":3108},"task1",[3071,5184,2972],{"class":3112},[3071,5186,5187],{"class":3108},"task2",[3071,5189,3131],{"class":3112},[2965,5191,5192,5193,5196,5197,5200],{},"EF Core навіть ",[2992,5194,5195],{},"детектує"," цю ситуацію і кидає ",[2969,5198,5199],{},"InvalidOperationException",". Але не завжди — іноді ви отримаєте корупцію стану без явного exception.",[3046,5202,5204],{"id":5203},"правильний-підхід-один-dbcontext-на-одну-одиницю-роботи","Правильний підхід: один DbContext на одну «одиницю роботи»",[5206,5207,5208,5402],"tabs",{},[5209,5210,5212],"tabs-item",{"label":5211},"Консольний застосунок",[3062,5213,5215],{"className":3064,"code":5214,"language":3066,"meta":3067,"style":3067},"// ✅ Окремий контекст для кожної операції\nasync Task ProcessOrderAsync(int orderId)\n{\n    // Новий контекст для кожного виклику\n    await using var context = new AppDbContext(options);\n    var order = await context.Orders.FindAsync(orderId);\n    order!.Status = OrderStatus.Processing;\n    await context.SaveChangesAsync();\n}\n\n// Паралельне виконання — БЕЗПЕЧНО, бо різні екземпляри\nawait Task.WhenAll(\n    ProcessOrderAsync(1),\n    ProcessOrderAsync(2),\n    ProcessOrderAsync(3)\n);\n",[2969,5216,5217,5222,5242,5246,5251,5275,5305,5326,5338,5342,5346,5351,5364,5376,5387,5398],{"__ignoreMap":3067},[3071,5218,5219],{"class":3073,"line":3074},[3071,5220,5221],{"class":3077},"// ✅ Окремий контекст для кожної операції\n",[3071,5223,5224,5227,5229,5232,5234,5237,5240],{"class":3073,"line":3081},[3071,5225,5226],{"class":3183},"async",[3071,5228,5172],{"class":3526},[3071,5230,5231],{"class":3121}," ProcessOrderAsync",[3071,5233,3125],{"class":3112},[3071,5235,5236],{"class":3183},"int",[3071,5238,5239],{"class":3108}," orderId",[3071,5241,4269],{"class":3112},[3071,5243,5244],{"class":3073,"line":3087},[3071,5245,4132],{"class":3112},[3071,5247,5248],{"class":3073,"line":3093},[3071,5249,5250],{"class":3077},"    // Новий контекст для кожного виклику\n",[3071,5252,5253,5256,5259,5261,5263,5265,5267,5269,5271,5273],{"class":3073,"line":3099},[3071,5254,5255],{"class":3183},"    await",[3071,5257,5258],{"class":4102}," using",[3071,5260,4701],{"class":3183},[3071,5262,3187],{"class":3108},[3071,5264,3166],{"class":3112},[3071,5266,3453],{"class":3183},[3071,5268,4710],{"class":3526},[3071,5270,3125],{"class":3112},[3071,5272,4715],{"class":3108},[3071,5274,3131],{"class":3112},[3071,5276,5277,5280,5283,5285,5287,5289,5291,5294,5296,5298,5300,5303],{"class":3073,"line":3105},[3071,5278,5279],{"class":3183},"    var",[3071,5281,5282],{"class":3108}," order",[3071,5284,3166],{"class":3112},[3071,5286,3184],{"class":3183},[3071,5288,3187],{"class":3108},[3071,5290,3113],{"class":3112},[3071,5292,5293],{"class":3108},"Orders",[3071,5295,3113],{"class":3112},[3071,5297,4009],{"class":3121},[3071,5299,3125],{"class":3112},[3071,5301,5302],{"class":3108},"orderId",[3071,5304,3131],{"class":3112},[3071,5306,5307,5310,5313,5315,5317,5319,5321,5324],{"class":3073,"line":3134},[3071,5308,5309],{"class":3108},"    order",[3071,5311,5312],{"class":3112},"!.",[3071,5314,3163],{"class":3108},[3071,5316,3166],{"class":3112},[3071,5318,3169],{"class":3108},[3071,5320,3113],{"class":3112},[3071,5322,5323],{"class":3108},"Processing",[3071,5325,3177],{"class":3112},[3071,5327,5328,5330,5332,5334,5336],{"class":3073,"line":3155},[3071,5329,5255],{"class":3183},[3071,5331,3187],{"class":3108},[3071,5333,3113],{"class":3112},[3071,5335,3192],{"class":3121},[3071,5337,3666],{"class":3112},[3071,5339,5340],{"class":3073,"line":3180},[3071,5341,4195],{"class":3112},[3071,5343,5344],{"class":3073,"line":3297},[3071,5345,3294],{"emptyLinePlaceholder":3293},[3071,5347,5348],{"class":3073,"line":3303},[3071,5349,5350],{"class":3077},"// Паралельне виконання — БЕЗПЕЧНО, бо різні екземпляри\n",[3071,5352,5353,5355,5357,5359,5361],{"class":3073,"line":3309},[3071,5354,3184],{"class":3183},[3071,5356,5172],{"class":3108},[3071,5358,3113],{"class":3112},[3071,5360,5177],{"class":3121},[3071,5362,5363],{"class":3112},"(\n",[3071,5365,5366,5369,5371,5373],{"class":3073,"line":3315},[3071,5367,5368],{"class":3121},"    ProcessOrderAsync",[3071,5370,3125],{"class":3112},[3071,5372,4014],{"class":3549},[3071,5374,5375],{"class":3112},"),\n",[3071,5377,5378,5380,5382,5385],{"class":3073,"line":3320},[3071,5379,5368],{"class":3121},[3071,5381,3125],{"class":3112},[3071,5383,5384],{"class":3549},"2",[3071,5386,5375],{"class":3112},[3071,5388,5389,5391,5393,5396],{"class":3073,"line":3326},[3071,5390,5368],{"class":3121},[3071,5392,3125],{"class":3112},[3071,5394,5395],{"class":3549},"3",[3071,5397,4269],{"class":3112},[3071,5399,5400],{"class":3073,"line":3332},[3071,5401,3131],{"class":3112},[5209,5403,5405,5412,5644],{"label":5404},"ASP.NET Core (Scoped)",[2965,5406,5407,5408,5411],{},"У ASP.NET Core DbContext реєструється як ",[2992,5409,5410],{},"Scoped"," — одна ітсанція на HTTP-запит. Кожен запит отримує свій контекст, але всередині одного запиту — один спільний:",[3062,5413,5415],{"className":3064,"code":5414,"language":3066,"meta":3067,"style":3067},"// Реєстрація (один раз, при старті застосунку)\nbuilder.Services.AddDbContext\u003CAppDbContext>(opts =>\n    opts.UseNpgsql(connectionString));\n\n// У Controller або Service — DbContext інжектується автоматично\npublic class BooksController : ControllerBase\n{\n    private readonly AppDbContext _context;\n\n    public BooksController(AppDbContext context)\n    {\n        _context = context; // один екземпляр на весь HTTP-запит\n    }\n\n    [HttpGet]\n    public async Task\u003CIActionResult> GetAll()\n    {\n        var books = await _context.Books.ToListAsync();\n        return Ok(books);\n    }\n}\n",[2969,5416,5417,5422,5451,5469,5473,5478,5495,5499,5514,5518,5533,5538,5552,5557,5561,5572,5595,5599,5622,5636,5640],{"__ignoreMap":3067},[3071,5418,5419],{"class":3073,"line":3074},[3071,5420,5421],{"class":3077},"// Реєстрація (один раз, при старті застосунку)\n",[3071,5423,5424,5427,5429,5432,5434,5437,5439,5442,5445,5448],{"class":3073,"line":3081},[3071,5425,5426],{"class":3108},"builder",[3071,5428,3113],{"class":3112},[3071,5430,5431],{"class":3108},"Services",[3071,5433,3113],{"class":3112},[3071,5435,5436],{"class":3121},"AddDbContext",[3071,5438,4230],{"class":3112},[3071,5440,5441],{"class":3526},"AppDbContext",[3071,5443,5444],{"class":3112},">(",[3071,5446,5447],{"class":3108},"opts",[3071,5449,5450],{"class":3112}," =>\n",[3071,5452,5453,5456,5458,5461,5463,5466],{"class":3073,"line":3087},[3071,5454,5455],{"class":3108},"    opts",[3071,5457,3113],{"class":3112},[3071,5459,5460],{"class":3121},"UseNpgsql",[3071,5462,3125],{"class":3112},[3071,5464,5465],{"class":3108},"connectionString",[3071,5467,5468],{"class":3112},"));\n",[3071,5470,5471],{"class":3073,"line":3093},[3071,5472,3294],{"emptyLinePlaceholder":3293},[3071,5474,5475],{"class":3073,"line":3099},[3071,5476,5477],{"class":3077},"// У Controller або Service — DbContext інжектується автоматично\n",[3071,5479,5480,5483,5486,5489,5492],{"class":3073,"line":3105},[3071,5481,5482],{"class":3183},"public",[3071,5484,5485],{"class":3183}," class",[3071,5487,5488],{"class":3526}," BooksController",[3071,5490,5491],{"class":3112}," : ",[3071,5493,5494],{"class":3526},"ControllerBase\n",[3071,5496,5497],{"class":3073,"line":3134},[3071,5498,4132],{"class":3112},[3071,5500,5501,5504,5507,5509,5512],{"class":3073,"line":3155},[3071,5502,5503],{"class":3183},"    private",[3071,5505,5506],{"class":3183}," readonly",[3071,5508,4710],{"class":3526},[3071,5510,5511],{"class":3108}," _context",[3071,5513,3177],{"class":3112},[3071,5515,5516],{"class":3073,"line":3180},[3071,5517,3294],{"emptyLinePlaceholder":3293},[3071,5519,5520,5523,5525,5527,5529,5531],{"class":3073,"line":3297},[3071,5521,5522],{"class":3183},"    public",[3071,5524,5488],{"class":3121},[3071,5526,3125],{"class":3112},[3071,5528,5441],{"class":3526},[3071,5530,3187],{"class":3108},[3071,5532,4269],{"class":3112},[3071,5534,5535],{"class":3073,"line":3303},[3071,5536,5537],{"class":3112},"    {\n",[3071,5539,5540,5543,5545,5547,5549],{"class":3073,"line":3309},[3071,5541,5542],{"class":3108},"        _context",[3071,5544,3166],{"class":3112},[3071,5546,3109],{"class":3108},[3071,5548,4828],{"class":3112},[3071,5550,5551],{"class":3077},"// один екземпляр на весь HTTP-запит\n",[3071,5553,5554],{"class":3073,"line":3315},[3071,5555,5556],{"class":3112},"    }\n",[3071,5558,5559],{"class":3073,"line":3320},[3071,5560,3294],{"emptyLinePlaceholder":3293},[3071,5562,5563,5566,5569],{"class":3073,"line":3326},[3071,5564,5565],{"class":3112},"    [",[3071,5567,5568],{"class":3526},"HttpGet",[3071,5570,5571],{"class":3112},"]\n",[3071,5573,5574,5576,5579,5581,5583,5586,5589,5592],{"class":3073,"line":3332},[3071,5575,5522],{"class":3183},[3071,5577,5578],{"class":3183}," async",[3071,5580,5172],{"class":3526},[3071,5582,4230],{"class":3112},[3071,5584,5585],{"class":3526},"IActionResult",[3071,5587,5588],{"class":3112},"> ",[3071,5590,5591],{"class":3121},"GetAll",[3071,5593,5594],{"class":3112},"()\n",[3071,5596,5597],{"class":3073,"line":3338},[3071,5598,5537],{"class":3112},[3071,5600,5601,5604,5606,5608,5610,5612,5614,5616,5618,5620],{"class":3073,"line":3344},[3071,5602,5603],{"class":3183},"        var",[3071,5605,4748],{"class":3108},[3071,5607,3166],{"class":3112},[3071,5609,3184],{"class":3183},[3071,5611,5511],{"class":3108},[3071,5613,3113],{"class":3112},[3071,5615,3141],{"class":3108},[3071,5617,3113],{"class":3112},[3071,5619,4763],{"class":3121},[3071,5621,3666],{"class":3112},[3071,5623,5624,5627,5630,5632,5634],{"class":3073,"line":3349},[3071,5625,5626],{"class":4102},"        return",[3071,5628,5629],{"class":3121}," Ok",[3071,5631,3125],{"class":3112},[3071,5633,4805],{"class":3108},[3071,5635,3131],{"class":3112},[3071,5637,5638],{"class":3073,"line":3355},[3071,5639,5556],{"class":3112},[3071,5641,5642],{"class":3073,"line":3361},[3071,5643,4195],{"class":3112},[3224,5645,5646,5649],{},[2992,5647,5648],{},"Ремарка:"," Dependency Injection (DI) та Scoped lifetime детально вивчатимуться у розділі ASP.NET Core. Наразі достатньо розуміти: Scoped означає «один екземпляр DbContext на один HTTP-запит» — це правильна гранулярність для веб-застосунків.",[2965,5651,5652],{},"::",[5209,5654,5656,5666],{"label":5655},"Background Services",[2965,5657,5658,5659,5662,5663,5665],{},"Background Services (фонові сервіси) реєструються як ",[2992,5660,5661],{},"Singleton",". Але DbContext — ",[2992,5664,5410],{},". Singleton не може напряму залежати від Scoped-сервісу!",[3062,5667,5669],{"className":3064,"code":5668,"language":3066,"meta":3067,"style":3067},"// ❌ НЕПРАВИЛЬНО: DbContext як конструктор-залежність у Singleton\npublic class BackgroundWorker : BackgroundService\n{\n    private readonly AppDbContext _context; // Scoped в Singleton — помилка!\n    // ...\n}\n\n// ✅ ПРАВИЛЬНО: IDbContextFactory для фонових сервісів\npublic class BackgroundWorker : BackgroundService\n{\n    private readonly IDbContextFactory\u003CAppDbContext> _factory;\n\n    public BackgroundWorker(IDbContextFactory\u003CAppDbContext> factory)\n    {\n        _factory = factory;\n    }\n\n    protected override async Task ExecuteAsync(CancellationToken stoppingToken)\n    {\n        while (!stoppingToken.IsCancellationRequested)\n        {\n            // Кожна ітерація — новий контекст\n            await using var context = await _factory.CreateDbContextAsync();\n            // ... робота з даними\n            await Task.Delay(TimeSpan.FromMinutes(1), stoppingToken);\n        }\n    }\n}\n",[2969,5670,5671,5676,5690,5694,5709,5714,5718,5722,5727,5739,5743,5763,5767,5789,5793,5804,5808,5812,5837,5841,5859,5864,5869,5894,5899,5931,5936,5940],{"__ignoreMap":3067},[3071,5672,5673],{"class":3073,"line":3074},[3071,5674,5675],{"class":3077},"// ❌ НЕПРАВИЛЬНО: DbContext як конструктор-залежність у Singleton\n",[3071,5677,5678,5680,5682,5685,5687],{"class":3073,"line":3081},[3071,5679,5482],{"class":3183},[3071,5681,5485],{"class":3183},[3071,5683,5684],{"class":3526}," BackgroundWorker",[3071,5686,5491],{"class":3112},[3071,5688,5689],{"class":3526},"BackgroundService\n",[3071,5691,5692],{"class":3073,"line":3087},[3071,5693,4132],{"class":3112},[3071,5695,5696,5698,5700,5702,5704,5706],{"class":3073,"line":3093},[3071,5697,5503],{"class":3183},[3071,5699,5506],{"class":3183},[3071,5701,4710],{"class":3526},[3071,5703,5511],{"class":3108},[3071,5705,4828],{"class":3112},[3071,5707,5708],{"class":3077},"// Scoped в Singleton — помилка!\n",[3071,5710,5711],{"class":3073,"line":3099},[3071,5712,5713],{"class":3077},"    // ...\n",[3071,5715,5716],{"class":3073,"line":3105},[3071,5717,4195],{"class":3112},[3071,5719,5720],{"class":3073,"line":3134},[3071,5721,3294],{"emptyLinePlaceholder":3293},[3071,5723,5724],{"class":3073,"line":3155},[3071,5725,5726],{"class":3077},"// ✅ ПРАВИЛЬНО: IDbContextFactory для фонових сервісів\n",[3071,5728,5729,5731,5733,5735,5737],{"class":3073,"line":3180},[3071,5730,5482],{"class":3183},[3071,5732,5485],{"class":3183},[3071,5734,5684],{"class":3526},[3071,5736,5491],{"class":3112},[3071,5738,5689],{"class":3526},[3071,5740,5741],{"class":3073,"line":3297},[3071,5742,4132],{"class":3112},[3071,5744,5745,5747,5749,5752,5754,5756,5758,5761],{"class":3073,"line":3303},[3071,5746,5503],{"class":3183},[3071,5748,5506],{"class":3183},[3071,5750,5751],{"class":3526}," IDbContextFactory",[3071,5753,4230],{"class":3112},[3071,5755,5441],{"class":3526},[3071,5757,5588],{"class":3112},[3071,5759,5760],{"class":3108},"_factory",[3071,5762,3177],{"class":3112},[3071,5764,5765],{"class":3073,"line":3309},[3071,5766,3294],{"emptyLinePlaceholder":3293},[3071,5768,5769,5771,5773,5775,5778,5780,5782,5784,5787],{"class":3073,"line":3315},[3071,5770,5522],{"class":3183},[3071,5772,5684],{"class":3121},[3071,5774,3125],{"class":3112},[3071,5776,5777],{"class":3526},"IDbContextFactory",[3071,5779,4230],{"class":3112},[3071,5781,5441],{"class":3526},[3071,5783,5588],{"class":3112},[3071,5785,5786],{"class":3108},"factory",[3071,5788,4269],{"class":3112},[3071,5790,5791],{"class":3073,"line":3320},[3071,5792,5537],{"class":3112},[3071,5794,5795,5798,5800,5802],{"class":3073,"line":3326},[3071,5796,5797],{"class":3108},"        _factory",[3071,5799,3166],{"class":3112},[3071,5801,5786],{"class":3108},[3071,5803,3177],{"class":3112},[3071,5805,5806],{"class":3073,"line":3332},[3071,5807,5556],{"class":3112},[3071,5809,5810],{"class":3073,"line":3338},[3071,5811,3294],{"emptyLinePlaceholder":3293},[3071,5813,5814,5817,5820,5822,5824,5827,5829,5832,5835],{"class":3073,"line":3344},[3071,5815,5816],{"class":3183},"    protected",[3071,5818,5819],{"class":3183}," override",[3071,5821,5578],{"class":3183},[3071,5823,5172],{"class":3526},[3071,5825,5826],{"class":3121}," ExecuteAsync",[3071,5828,3125],{"class":3112},[3071,5830,5831],{"class":3526},"CancellationToken",[3071,5833,5834],{"class":3108}," stoppingToken",[3071,5836,4269],{"class":3112},[3071,5838,5839],{"class":3073,"line":3349},[3071,5840,5537],{"class":3112},[3071,5842,5843,5846,5849,5852,5854,5857],{"class":3073,"line":3355},[3071,5844,5845],{"class":4102},"        while",[3071,5847,5848],{"class":3112}," (!",[3071,5850,5851],{"class":3108},"stoppingToken",[3071,5853,3113],{"class":3112},[3071,5855,5856],{"class":3108},"IsCancellationRequested",[3071,5858,4269],{"class":3112},[3071,5860,5861],{"class":3073,"line":3361},[3071,5862,5863],{"class":3112},"        {\n",[3071,5865,5866],{"class":3073,"line":3809},[3071,5867,5868],{"class":3077},"            // Кожна ітерація — новий контекст\n",[3071,5870,5871,5874,5876,5878,5880,5882,5884,5887,5889,5892],{"class":3073,"line":3828},[3071,5872,5873],{"class":3183},"            await",[3071,5875,5258],{"class":4102},[3071,5877,4701],{"class":3183},[3071,5879,3187],{"class":3108},[3071,5881,3166],{"class":3112},[3071,5883,3184],{"class":3183},[3071,5885,5886],{"class":3108}," _factory",[3071,5888,3113],{"class":3112},[3071,5890,5891],{"class":3121},"CreateDbContextAsync",[3071,5893,3666],{"class":3112},[3071,5895,5896],{"class":3073,"line":3858},[3071,5897,5898],{"class":3077},"            // ... робота з даними\n",[3071,5900,5901,5903,5905,5907,5910,5912,5915,5917,5920,5922,5924,5927,5929],{"class":3073,"line":3863},[3071,5902,5873],{"class":3183},[3071,5904,5172],{"class":3108},[3071,5906,3113],{"class":3112},[3071,5908,5909],{"class":3121},"Delay",[3071,5911,3125],{"class":3112},[3071,5913,5914],{"class":3108},"TimeSpan",[3071,5916,3113],{"class":3112},[3071,5918,5919],{"class":3121},"FromMinutes",[3071,5921,3125],{"class":3112},[3071,5923,4014],{"class":3549},[3071,5925,5926],{"class":3112},"), ",[3071,5928,5851],{"class":3108},[3071,5930,3131],{"class":3112},[3071,5932,5933],{"class":3073,"line":3869},[3071,5934,5935],{"class":3112},"        }\n",[3071,5937,5938],{"class":3073,"line":3882},[3071,5939,5556],{"class":3112},[3071,5941,5943],{"class":3073,"line":5942},28,[3071,5944,4195],{"class":3112},[2965,5946,5652],{},[3028,5948],{},[2960,5950,5952],{"id":5951},"dbcontextfactory-коли-scoped-недостатньо","DbContextFactory: коли Scoped недостатньо",[2965,5954,5955,5958,5959,3044],{},[2969,5956,5957],{},"IDbContextFactory\u003CT>"," — фабрика, що дозволяє явно створювати і контролювати lifecycle DbContext. Реєструється через ",[2969,5960,5961],{},"AddDbContextFactory",[3062,5963,5966],{"className":3064,"code":5964,"filename":5965,"language":3066,"meta":3067,"style":3067},"// Реєстрація фабрики (замість або поряд з AddDbContext)\nbuilder.Services.AddDbContextFactory\u003CAppDbContext>(opts =>\n    opts.UseNpgsql(connectionString));\n","Program.cs",[2969,5967,5968,5973,5995],{"__ignoreMap":3067},[3071,5969,5970],{"class":3073,"line":3074},[3071,5971,5972],{"class":3077},"// Реєстрація фабрики (замість або поряд з AddDbContext)\n",[3071,5974,5975,5977,5979,5981,5983,5985,5987,5989,5991,5993],{"class":3073,"line":3081},[3071,5976,5426],{"class":3108},[3071,5978,3113],{"class":3112},[3071,5980,5431],{"class":3108},[3071,5982,3113],{"class":3112},[3071,5984,5961],{"class":3121},[3071,5986,4230],{"class":3112},[3071,5988,5441],{"class":3526},[3071,5990,5444],{"class":3112},[3071,5992,5447],{"class":3108},[3071,5994,5450],{"class":3112},[3071,5996,5997,5999,6001,6003,6005,6007],{"class":3073,"line":3087},[3071,5998,5455],{"class":3108},[3071,6000,3113],{"class":3112},[3071,6002,5460],{"class":3121},[3071,6004,3125],{"class":3112},[3071,6006,5465],{"class":3108},[3071,6008,5468],{"class":3112},[2965,6010,6011],{},"Сценарії використання:",[6013,6014,6015,6115,6249],"accordion",{},[6016,6017,6019,6022],"accordion-item",{"icon":92,"label":6018},"Blazor Server",[2965,6020,6021],{},"У Blazor Server компоненти живуть довше, ніж один HTTP-запит. Scoped DbContext не підходить — через нього буде витік пам'яті (ChangeTracker накопичуватиме об'єкти весь час).",[3062,6023,6025],{"className":3064,"code":6024,"language":3066,"meta":3067,"style":3067},"@inject IDbContextFactory\u003CAppDbContext> DbFactory\n\nasync Task LoadData()\n{\n    // Явно контролюємо lifecycle — новий контекст тільки для цієї операції\n    await using var context = await DbFactory.CreateDbContextAsync();\n    Books = await context.Books.ToListAsync();\n}\n",[2969,6026,6027,6043,6047,6058,6062,6067,6090,6111],{"__ignoreMap":3067},[3071,6028,6029,6032,6034,6036,6038,6040],{"class":3073,"line":3074},[3071,6030,6031],{"class":3108},"@inject",[3071,6033,5751],{"class":3108},[3071,6035,4230],{"class":3112},[3071,6037,5441],{"class":3108},[3071,6039,5588],{"class":3112},[3071,6041,6042],{"class":3108},"DbFactory\n",[3071,6044,6045],{"class":3073,"line":3081},[3071,6046,3294],{"emptyLinePlaceholder":3293},[3071,6048,6049,6051,6053,6056],{"class":3073,"line":3087},[3071,6050,5226],{"class":3183},[3071,6052,5172],{"class":3526},[3071,6054,6055],{"class":3121}," LoadData",[3071,6057,5594],{"class":3112},[3071,6059,6060],{"class":3073,"line":3093},[3071,6061,4132],{"class":3112},[3071,6063,6064],{"class":3073,"line":3099},[3071,6065,6066],{"class":3077},"    // Явно контролюємо lifecycle — новий контекст тільки для цієї операції\n",[3071,6068,6069,6071,6073,6075,6077,6079,6081,6084,6086,6088],{"class":3073,"line":3105},[3071,6070,5255],{"class":3183},[3071,6072,5258],{"class":4102},[3071,6074,4701],{"class":3183},[3071,6076,3187],{"class":3108},[3071,6078,3166],{"class":3112},[3071,6080,3184],{"class":3183},[3071,6082,6083],{"class":3108}," DbFactory",[3071,6085,3113],{"class":3112},[3071,6087,5891],{"class":3121},[3071,6089,3666],{"class":3112},[3071,6091,6092,6095,6097,6099,6101,6103,6105,6107,6109],{"class":3073,"line":3134},[3071,6093,6094],{"class":3108},"    Books",[3071,6096,3166],{"class":3112},[3071,6098,3184],{"class":3183},[3071,6100,3187],{"class":3108},[3071,6102,3113],{"class":3112},[3071,6104,3141],{"class":3108},[3071,6106,3113],{"class":3112},[3071,6108,4763],{"class":3121},[3071,6110,3666],{"class":3112},[3071,6112,6113],{"class":3073,"line":3155},[3071,6114,4195],{"class":3112},[6016,6116,6119,6122],{"icon":6117,"label":6118},"i-lucide-git-branch","Паралельні операції",[2965,6120,6121],{},"Коли потрібно виконати кілька незалежних операцій паралельно — кожна отримує свій контекст:",[3062,6123,6125],{"className":3064,"code":6124,"language":3066,"meta":3067,"style":3067},"await using var ctx1 = await factory.CreateDbContextAsync();\nawait using var ctx2 = await factory.CreateDbContextAsync();\n\n// Паралельно і безпечно\nvar (authors, books) = await (\n    ctx1.Authors.ToListAsync(),\n    ctx2.Books.ToListAsync()\n).WaitAsync(cancellationToken);\n",[2969,6126,6127,6151,6174,6178,6183,6204,6220,6235],{"__ignoreMap":3067},[3071,6128,6129,6131,6133,6135,6138,6140,6142,6145,6147,6149],{"class":3073,"line":3074},[3071,6130,3184],{"class":3183},[3071,6132,5258],{"class":4102},[3071,6134,4701],{"class":3183},[3071,6136,6137],{"class":3108}," ctx1",[3071,6139,3166],{"class":3112},[3071,6141,3184],{"class":3183},[3071,6143,6144],{"class":3108}," factory",[3071,6146,3113],{"class":3112},[3071,6148,5891],{"class":3121},[3071,6150,3666],{"class":3112},[3071,6152,6153,6155,6157,6159,6162,6164,6166,6168,6170,6172],{"class":3073,"line":3081},[3071,6154,3184],{"class":3183},[3071,6156,5258],{"class":4102},[3071,6158,4701],{"class":3183},[3071,6160,6161],{"class":3108}," ctx2",[3071,6163,3166],{"class":3112},[3071,6165,3184],{"class":3183},[3071,6167,6144],{"class":3108},[3071,6169,3113],{"class":3112},[3071,6171,5891],{"class":3121},[3071,6173,3666],{"class":3112},[3071,6175,6176],{"class":3073,"line":3087},[3071,6177,3294],{"emptyLinePlaceholder":3293},[3071,6179,6180],{"class":3073,"line":3093},[3071,6181,6182],{"class":3077},"// Паралельно і безпечно\n",[3071,6184,6185,6187,6189,6192,6194,6196,6199,6201],{"class":3073,"line":3099},[3071,6186,3516],{"class":3183},[3071,6188,3408],{"class":3112},[3071,6190,6191],{"class":3108},"authors",[3071,6193,2972],{"class":3112},[3071,6195,4805],{"class":3108},[3071,6197,6198],{"class":3112},") = ",[3071,6200,3184],{"class":3183},[3071,6202,6203],{"class":3112}," (\n",[3071,6205,6206,6209,6211,6213,6215,6217],{"class":3073,"line":3105},[3071,6207,6208],{"class":3108},"    ctx1",[3071,6210,3113],{"class":3112},[3071,6212,3116],{"class":3108},[3071,6214,3113],{"class":3112},[3071,6216,4763],{"class":3121},[3071,6218,6219],{"class":3112},"(),\n",[3071,6221,6222,6225,6227,6229,6231,6233],{"class":3073,"line":3134},[3071,6223,6224],{"class":3108},"    ctx2",[3071,6226,3113],{"class":3112},[3071,6228,3141],{"class":3108},[3071,6230,3113],{"class":3112},[3071,6232,4763],{"class":3121},[3071,6234,5594],{"class":3112},[3071,6236,6237,6239,6242,6244,6247],{"class":3073,"line":3155},[3071,6238,3579],{"class":3112},[3071,6240,6241],{"class":3121},"WaitAsync",[3071,6243,3125],{"class":3112},[3071,6245,6246],{"class":3108},"cancellationToken",[3071,6248,3131],{"class":3112},[6016,6250,6252],{"icon":6251,"label":5655},"i-lucide-settings","Як показано вище — фонові сервіси є Singleton, тому потребують фабрику для створення Scoped DbContext на кожну ітерацію.",[3028,6254],{},[2960,6256,6258],{"id":6257},"adddbcontext-vs-adddbcontextpool","AddDbContext vs AddDbContextPool",[2965,6260,6261,6263,6264,6267],{},[2969,6262,5436],{}," і ",[2969,6265,6266],{},"AddDbContextPool"," — два способи реєстрації DbContext у DI-контейнері. Між ними важлива різниця:",[3046,6269,6271],{"id":6270},"adddbcontext-стандарт","AddDbContext (стандарт)",[3062,6273,6275],{"className":3064,"code":6274,"language":3066,"meta":3067,"style":3067},"builder.Services.AddDbContext\u003CAppDbContext>(opts =>\n    opts.UseNpgsql(connectionString));\n",[2969,6276,6277,6299],{"__ignoreMap":3067},[3071,6278,6279,6281,6283,6285,6287,6289,6291,6293,6295,6297],{"class":3073,"line":3074},[3071,6280,5426],{"class":3108},[3071,6282,3113],{"class":3112},[3071,6284,5431],{"class":3108},[3071,6286,3113],{"class":3112},[3071,6288,5436],{"class":3121},[3071,6290,4230],{"class":3112},[3071,6292,5441],{"class":3526},[3071,6294,5444],{"class":3112},[3071,6296,5447],{"class":3108},[3071,6298,5450],{"class":3112},[3071,6300,6301,6303,6305,6307,6309,6311],{"class":3073,"line":3081},[3071,6302,5455],{"class":3108},[3071,6304,3113],{"class":3112},[3071,6306,5460],{"class":3121},[3071,6308,3125],{"class":3112},[3071,6310,5465],{"class":3108},[3071,6312,5468],{"class":3112},[2965,6314,6315,6316,6319,6320,6322,6323,6325],{},"При кожному HTTP-запиті (кожному Scope) створюється ",[2992,6317,6318],{},"новий"," екземпляр ",[2969,6321,5441],{},". Після завершення запиту — ",[2969,6324,5015],{}," і збирання сміттям.",[3046,6327,6329],{"id":6328},"adddbcontextpool-пул","AddDbContextPool (пул)",[3062,6331,6333],{"className":3064,"code":6332,"language":3066,"meta":3067,"style":3067},"builder.Services.AddDbContextPool\u003CAppDbContext>(opts =>\n    opts.UseNpgsql(connectionString), poolSize: 128);\n",[2969,6334,6335,6357],{"__ignoreMap":3067},[3071,6336,6337,6339,6341,6343,6345,6347,6349,6351,6353,6355],{"class":3073,"line":3074},[3071,6338,5426],{"class":3108},[3071,6340,3113],{"class":3112},[3071,6342,5431],{"class":3108},[3071,6344,3113],{"class":3112},[3071,6346,6266],{"class":3121},[3071,6348,4230],{"class":3112},[3071,6350,5441],{"class":3526},[3071,6352,5444],{"class":3112},[3071,6354,5447],{"class":3108},[3071,6356,5450],{"class":3112},[3071,6358,6359,6361,6363,6365,6367,6369,6371,6374,6377,6380],{"class":3073,"line":3081},[3071,6360,5455],{"class":3108},[3071,6362,3113],{"class":3112},[3071,6364,5460],{"class":3121},[3071,6366,3125],{"class":3112},[3071,6368,5465],{"class":3108},[3071,6370,5926],{"class":3112},[3071,6372,6373],{"class":3108},"poolSize",[3071,6375,6376],{"class":3112},": ",[3071,6378,6379],{"class":3549},"128",[3071,6381,3131],{"class":3112},[2965,6383,6384,6385,6388,6389,6391],{},"DbContext-об'єкти ",[2992,6386,6387],{},"не знищуються"," після ",[2969,6390,5015],{}," — вони повертаються в пул і перевикористовуються. При наступному HTTP-запиті береться готовий DbContext із пулу замість створення нового.",[2965,6393,6394,6397],{},[2992,6395,6396],{},"Що скидається при поверненні в пул:"," ChangeTracker, локальні дані, стани — все очищується до стану «свіжого» контексту.",[2965,6399,6400,6403],{},[2992,6401,6402],{},"Що не скидається:"," з'єднання з БД (воно і так у Connection Pool), скомпільована IModel.",[6405,6406,6407,6429],"card-group",{},[6408,6409,6412],"card",{"icon":6410,"title":6411},"i-lucide-trending-up","Коли пул дає ефект",[2978,6413,6414,6417,6426],{},[2981,6415,6416],{},"Висока частота HTTP-запитів (тисячі RPS)",[2981,6418,6419,3468,6422,6425],{},[2969,6420,6421],{},"OnConfiguring",[2969,6423,6424],{},"OnModelCreating"," є дорогою операцією (рідко)",[2981,6427,6428],{},"Бенчмарки показали, що пул має ефект ~10–15% throughput при 10k+ RPS",[6408,6430,6433],{"icon":6431,"title":6432},"i-lucide-triangle-alert","Обмеження пулу",[2978,6434,6435,6440,6445],{},[2981,6436,6437,6439],{},[2969,6438,5441],{}," не повинен мати нічого, що не можна скинути (приватного стану)",[2981,6441,6442,6444],{},[2969,6443,6421],{}," не може залежати від Scoped-сервісів",[2981,6446,6447],{},"Не сумісний з деякими кастомними налаштуваннями lifecycle",[2965,6449,6450,6453,6454,6263,6456,6458,6459,3113],{},[2992,6451,6452],{},"Практична порада:"," для більшості застосунків з \u003C 1000 RPS різниця між ",[2969,6455,5436],{},[2969,6457,6266],{}," є незначною. Починайте з ",[2969,6460,5436],{},[3028,6462],{},[2960,6464,6466],{"id":6465},"onconfiguring-vs-onmodelcreating-різниця-відповідальностей","OnConfiguring vs OnModelCreating: різниця відповідальностей",[2965,6468,6469],{},"Два методи, які часто плутають початківці:",[3062,6471,6473],{"className":3064,"code":6472,"language":3066,"meta":3067,"style":3067},"public class AppDbContext : DbContext\n{\n    public AppDbContext(DbContextOptions\u003CAppDbContext> options) : base(options) { }\n\n    // OnConfiguring: відповідає за ЯК підключатись\n    // Викликається при кожній ініціалізації контексту\n    // Може залежати від runtime-значень\n    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)\n    {\n        // Зазвичай НЕ перевизначається, якщо options передаються через конструктор\n        // Але можна додати додаткові налаштування поверх переданих options:\n        optionsBuilder.EnableDetailedErrors();\n    }\n\n    // OnModelCreating: відповідає за ЯКА структура даних\n    // Викликається ОДИН РАЗ і результат кешується у IModel\n    // Тут конфігурується схема сутностей, зв'язки, індекси\n    protected override void OnModelCreating(ModelBuilder modelBuilder)\n    {\n        // Конфігурація сутностей через Fluent API\n        modelBuilder.Entity\u003CAuthor>(entity =>\n        {\n            entity.ToTable(\"Authors\");\n            entity.HasKey(a => a.Id);\n            entity.Property(a => a.Name).IsRequired().HasMaxLength(200);\n            entity.HasMany(a => a.Books)\n                  .WithOne(b => b.Author)\n                  .HasForeignKey(b => b.AuthorId)\n                  .OnDelete(DeleteBehavior.Cascade);\n        });\n\n        // Автоматичне підключення IEntityTypeConfiguration з асемблі\n        modelBuilder.ApplyConfigurationsFromAssembly(typeof(AppDbContext).Assembly);\n    }\n}\n",[2969,6474,6475,6488,6492,6524,6528,6533,6538,6543,6565,6569,6574,6579,6591,6595,6599,6604,6609,6614,6635,6639,6644,6665,6669,6686,6711,6748,6771,6793,6815,6835,6841,6846,6852,6878,6883],{"__ignoreMap":3067},[3071,6476,6477,6479,6481,6483,6485],{"class":3073,"line":3074},[3071,6478,5482],{"class":3183},[3071,6480,5485],{"class":3183},[3071,6482,4710],{"class":3526},[3071,6484,5491],{"class":3112},[3071,6486,6487],{"class":3526},"DbContext\n",[3071,6489,6490],{"class":3073,"line":3081},[3071,6491,4132],{"class":3112},[3071,6493,6494,6496,6498,6500,6503,6505,6507,6509,6511,6514,6517,6519,6521],{"class":3073,"line":3087},[3071,6495,5522],{"class":3183},[3071,6497,4710],{"class":3121},[3071,6499,3125],{"class":3112},[3071,6501,6502],{"class":3526},"DbContextOptions",[3071,6504,4230],{"class":3112},[3071,6506,5441],{"class":3526},[3071,6508,5588],{"class":3112},[3071,6510,4715],{"class":3108},[3071,6512,6513],{"class":3112},") : ",[3071,6515,6516],{"class":3183},"base",[3071,6518,3125],{"class":3112},[3071,6520,4715],{"class":3108},[3071,6522,6523],{"class":3112},") { }\n",[3071,6525,6526],{"class":3073,"line":3093},[3071,6527,3294],{"emptyLinePlaceholder":3293},[3071,6529,6530],{"class":3073,"line":3099},[3071,6531,6532],{"class":3077},"    // OnConfiguring: відповідає за ЯК підключатись\n",[3071,6534,6535],{"class":3073,"line":3105},[3071,6536,6537],{"class":3077},"    // Викликається при кожній ініціалізації контексту\n",[3071,6539,6540],{"class":3073,"line":3134},[3071,6541,6542],{"class":3077},"    // Може залежати від runtime-значень\n",[3071,6544,6545,6547,6549,6552,6555,6557,6560,6563],{"class":3073,"line":3155},[3071,6546,5816],{"class":3183},[3071,6548,5819],{"class":3183},[3071,6550,6551],{"class":3183}," void",[3071,6553,6554],{"class":3121}," OnConfiguring",[3071,6556,3125],{"class":3112},[3071,6558,6559],{"class":3526},"DbContextOptionsBuilder",[3071,6561,6562],{"class":3108}," optionsBuilder",[3071,6564,4269],{"class":3112},[3071,6566,6567],{"class":3073,"line":3180},[3071,6568,5537],{"class":3112},[3071,6570,6571],{"class":3073,"line":3297},[3071,6572,6573],{"class":3077},"        // Зазвичай НЕ перевизначається, якщо options передаються через конструктор\n",[3071,6575,6576],{"class":3073,"line":3303},[3071,6577,6578],{"class":3077},"        // Але можна додати додаткові налаштування поверх переданих options:\n",[3071,6580,6581,6584,6586,6589],{"class":3073,"line":3309},[3071,6582,6583],{"class":3108},"        optionsBuilder",[3071,6585,3113],{"class":3112},[3071,6587,6588],{"class":3121},"EnableDetailedErrors",[3071,6590,3666],{"class":3112},[3071,6592,6593],{"class":3073,"line":3315},[3071,6594,5556],{"class":3112},[3071,6596,6597],{"class":3073,"line":3320},[3071,6598,3294],{"emptyLinePlaceholder":3293},[3071,6600,6601],{"class":3073,"line":3326},[3071,6602,6603],{"class":3077},"    // OnModelCreating: відповідає за ЯКА структура даних\n",[3071,6605,6606],{"class":3073,"line":3332},[3071,6607,6608],{"class":3077},"    // Викликається ОДИН РАЗ і результат кешується у IModel\n",[3071,6610,6611],{"class":3073,"line":3338},[3071,6612,6613],{"class":3077},"    // Тут конфігурується схема сутностей, зв'язки, індекси\n",[3071,6615,6616,6618,6620,6622,6625,6627,6630,6633],{"class":3073,"line":3344},[3071,6617,5816],{"class":3183},[3071,6619,5819],{"class":3183},[3071,6621,6551],{"class":3183},[3071,6623,6624],{"class":3121}," OnModelCreating",[3071,6626,3125],{"class":3112},[3071,6628,6629],{"class":3526},"ModelBuilder",[3071,6631,6632],{"class":3108}," modelBuilder",[3071,6634,4269],{"class":3112},[3071,6636,6637],{"class":3073,"line":3349},[3071,6638,5537],{"class":3112},[3071,6640,6641],{"class":3073,"line":3355},[3071,6642,6643],{"class":3077},"        // Конфігурація сутностей через Fluent API\n",[3071,6645,6646,6649,6651,6653,6655,6658,6660,6663],{"class":3073,"line":3361},[3071,6647,6648],{"class":3108},"        modelBuilder",[3071,6650,3113],{"class":3112},[3071,6652,4158],{"class":3121},[3071,6654,4230],{"class":3112},[3071,6656,6657],{"class":3526},"Author",[3071,6659,5444],{"class":3112},[3071,6661,6662],{"class":3108},"entity",[3071,6664,5450],{"class":3112},[3071,6666,6667],{"class":3073,"line":3809},[3071,6668,5863],{"class":3112},[3071,6670,6671,6674,6676,6679,6681,6684],{"class":3073,"line":3828},[3071,6672,6673],{"class":3108},"            entity",[3071,6675,3113],{"class":3112},[3071,6677,6678],{"class":3121},"ToTable",[3071,6680,3125],{"class":3112},[3071,6682,6683],{"class":3538},"\"Authors\"",[3071,6685,3131],{"class":3112},[3071,6687,6688,6690,6692,6695,6697,6700,6702,6704,6706,6709],{"class":3073,"line":3858},[3071,6689,6673],{"class":3108},[3071,6691,3113],{"class":3112},[3071,6693,6694],{"class":3121},"HasKey",[3071,6696,3125],{"class":3112},[3071,6698,6699],{"class":3108},"a",[3071,6701,4251],{"class":3112},[3071,6703,6699],{"class":3108},[3071,6705,3113],{"class":3112},[3071,6707,6708],{"class":3108},"Id",[3071,6710,3131],{"class":3112},[3071,6712,6713,6715,6717,6719,6721,6723,6725,6727,6729,6731,6733,6736,6738,6741,6743,6746],{"class":3073,"line":3863},[3071,6714,6673],{"class":3108},[3071,6716,3113],{"class":3112},[3071,6718,4325],{"class":3121},[3071,6720,3125],{"class":3112},[3071,6722,6699],{"class":3108},[3071,6724,4251],{"class":3112},[3071,6726,6699],{"class":3108},[3071,6728,3113],{"class":3112},[3071,6730,4169],{"class":3108},[3071,6732,3579],{"class":3112},[3071,6734,6735],{"class":3121},"IsRequired",[3071,6737,4166],{"class":3112},[3071,6739,6740],{"class":3121},"HasMaxLength",[3071,6742,3125],{"class":3112},[3071,6744,6745],{"class":3549},"200",[3071,6747,3131],{"class":3112},[3071,6749,6750,6752,6754,6757,6759,6761,6763,6765,6767,6769],{"class":3073,"line":3869},[3071,6751,6673],{"class":3108},[3071,6753,3113],{"class":3112},[3071,6755,6756],{"class":3121},"HasMany",[3071,6758,3125],{"class":3112},[3071,6760,6699],{"class":3108},[3071,6762,4251],{"class":3112},[3071,6764,6699],{"class":3108},[3071,6766,3113],{"class":3112},[3071,6768,3141],{"class":3108},[3071,6770,4269],{"class":3112},[3071,6772,6773,6776,6779,6781,6783,6785,6787,6789,6791],{"class":3073,"line":3882},[3071,6774,6775],{"class":3112},"                  .",[3071,6777,6778],{"class":3121},"WithOne",[3071,6780,3125],{"class":3112},[3071,6782,4330],{"class":3108},[3071,6784,4251],{"class":3112},[3071,6786,4330],{"class":3108},[3071,6788,3113],{"class":3112},[3071,6790,6657],{"class":3108},[3071,6792,4269],{"class":3112},[3071,6794,6795,6797,6800,6802,6804,6806,6808,6810,6813],{"class":3073,"line":5942},[3071,6796,6775],{"class":3112},[3071,6798,6799],{"class":3121},"HasForeignKey",[3071,6801,3125],{"class":3112},[3071,6803,4330],{"class":3108},[3071,6805,4251],{"class":3112},[3071,6807,4330],{"class":3108},[3071,6809,3113],{"class":3112},[3071,6811,6812],{"class":3108},"AuthorId",[3071,6814,4269],{"class":3112},[3071,6816,6818,6820,6823,6825,6828,6830,6833],{"class":3073,"line":6817},29,[3071,6819,6775],{"class":3112},[3071,6821,6822],{"class":3121},"OnDelete",[3071,6824,3125],{"class":3112},[3071,6826,6827],{"class":3108},"DeleteBehavior",[3071,6829,3113],{"class":3112},[3071,6831,6832],{"class":3108},"Cascade",[3071,6834,3131],{"class":3112},[3071,6836,6838],{"class":3073,"line":6837},30,[3071,6839,6840],{"class":3112},"        });\n",[3071,6842,6844],{"class":3073,"line":6843},31,[3071,6845,3294],{"emptyLinePlaceholder":3293},[3071,6847,6849],{"class":3073,"line":6848},32,[3071,6850,6851],{"class":3077},"        // Автоматичне підключення IEntityTypeConfiguration з асемблі\n",[3071,6853,6855,6857,6859,6862,6864,6867,6869,6871,6873,6876],{"class":3073,"line":6854},33,[3071,6856,6648],{"class":3108},[3071,6858,3113],{"class":3112},[3071,6860,6861],{"class":3121},"ApplyConfigurationsFromAssembly",[3071,6863,3125],{"class":3112},[3071,6865,6866],{"class":3183},"typeof",[3071,6868,3125],{"class":3112},[3071,6870,5441],{"class":3526},[3071,6872,3579],{"class":3112},[3071,6874,6875],{"class":3108},"Assembly",[3071,6877,3131],{"class":3112},[3071,6879,6881],{"class":3073,"line":6880},34,[3071,6882,5556],{"class":3112},[3071,6884,6886],{"class":3073,"line":6885},35,[3071,6887,4195],{"class":3112},[6405,6889,6890,6910],{},[6408,6891,6892,6898,6904],{"icon":6251,"title":6421},[2965,6893,6894,6897],{},[2992,6895,6896],{},"Відповідає за:"," провайдер БД, рядок підключення, логування, додаткові runtime-опції.",[2965,6899,6900,6903],{},[2992,6901,6902],{},"Викликається:"," при кожній ініціалізації DbContext (але опції кешуються при використанні конструктора).",[2965,6905,6906,6909],{},[2992,6907,6908],{},"Коли перевизначати:"," рідко — у більшості випадків options передаються через конструктор із DI.",[6408,6911,6912,6917,6924],{"icon":2354,"title":6424},[2965,6913,6914,6916],{},[2992,6915,6896],{}," схему сутностей, таблиці, стовпці, зв'язки, індекси, global query filters, конвертери.",[2965,6918,6919,3001,6921,6923],{},[2992,6920,6902],{},[2992,6922,3421],{}," при першому використанні DbContext. Результат (IModel) кешується статично.",[2965,6925,6926,6928],{},[2992,6927,6908],{}," завжди, коли потрібна конфігурація, яку не покривають конвенції.",[3028,6930],{},[2960,6932,6934],{"id":6933},"dbcontextoptions-та-dbcontextoptionsbuilder","DbContextOptions та DbContextOptionsBuilder",[2965,6936,6937,6940,6941,3044],{},[2969,6938,6939],{},"DbContextOptions\u003CTContext>"," — immutable-об'єкт, що містить всі налаштування DbContext. Створюється через ",[2969,6942,6559],{},[3062,6944,6946],{"className":3064,"code":6945,"language":3066,"meta":3067,"style":3067},"// Ручне створення options (консольні застосунки, тести)\nvar options = new DbContextOptionsBuilder\u003CAppDbContext>()\n    .UseNpgsql(\"Host=localhost;Database=mydb;Username=postgres;Password=secret\")\n    .EnableSensitiveDataLogging()\n    .EnableDetailedErrors()\n    .LogTo(Console.WriteLine, LogLevel.Information)\n    .Options; // повертає готовий DbContextOptions\u003CAppDbContext>\n\nawait using var context = new AppDbContext(options);\n",[2969,6947,6948,6953,6973,6986,6995,7003,7030,7042,7046],{"__ignoreMap":3067},[3071,6949,6950],{"class":3073,"line":3074},[3071,6951,6952],{"class":3077},"// Ручне створення options (консольні застосунки, тести)\n",[3071,6954,6955,6957,6960,6962,6964,6967,6969,6971],{"class":3073,"line":3081},[3071,6956,3516],{"class":3183},[3071,6958,6959],{"class":3108}," options",[3071,6961,3166],{"class":3112},[3071,6963,3453],{"class":3183},[3071,6965,6966],{"class":3526}," DbContextOptionsBuilder",[3071,6968,4230],{"class":3112},[3071,6970,5441],{"class":3526},[3071,6972,4236],{"class":3112},[3071,6974,6975,6977,6979,6981,6984],{"class":3073,"line":3087},[3071,6976,4225],{"class":3112},[3071,6978,5460],{"class":3121},[3071,6980,3125],{"class":3112},[3071,6982,6983],{"class":3538},"\"Host=localhost;Database=mydb;Username=postgres;Password=secret\"",[3071,6985,4269],{"class":3112},[3071,6987,6988,6990,6993],{"class":3073,"line":3093},[3071,6989,4225],{"class":3112},[3071,6991,6992],{"class":3121},"EnableSensitiveDataLogging",[3071,6994,5594],{"class":3112},[3071,6996,6997,6999,7001],{"class":3073,"line":3099},[3071,6998,4225],{"class":3112},[3071,7000,6588],{"class":3121},[3071,7002,5594],{"class":3112},[3071,7004,7005,7007,7010,7012,7014,7016,7018,7020,7023,7025,7028],{"class":3073,"line":3105},[3071,7006,4225],{"class":3112},[3071,7008,7009],{"class":3121},"LogTo",[3071,7011,3125],{"class":3112},[3071,7013,3558],{"class":3108},[3071,7015,3113],{"class":3112},[3071,7017,3563],{"class":3108},[3071,7019,2972],{"class":3112},[3071,7021,7022],{"class":3108},"LogLevel",[3071,7024,3113],{"class":3112},[3071,7026,7027],{"class":3108},"Information",[3071,7029,4269],{"class":3112},[3071,7031,7032,7034,7037,7039],{"class":3073,"line":3134},[3071,7033,4225],{"class":3112},[3071,7035,7036],{"class":3108},"Options",[3071,7038,4828],{"class":3112},[3071,7040,7041],{"class":3077},"// повертає готовий DbContextOptions\u003CAppDbContext>\n",[3071,7043,7044],{"class":3073,"line":3155},[3071,7045,3294],{"emptyLinePlaceholder":3293},[3071,7047,7048,7050,7052,7054,7056,7058,7060,7062,7064,7066],{"class":3073,"line":3180},[3071,7049,3184],{"class":3183},[3071,7051,5258],{"class":4102},[3071,7053,4701],{"class":3183},[3071,7055,3187],{"class":3108},[3071,7057,3166],{"class":3112},[3071,7059,3453],{"class":3183},[3071,7061,4710],{"class":3526},[3071,7063,3125],{"class":3112},[3071,7065,4715],{"class":3108},[3071,7067,3131],{"class":3112},[2965,7069,7070],{},"У тестах це особливо зручно — ви можете підставити SQLite in-memory замість реального PostgreSQL:",[3062,7072,7075],{"className":3064,"code":7073,"filename":7074,"language":3066,"meta":3067,"style":3067},"public static AppDbContext CreateTestContext()\n{\n    var options = new DbContextOptionsBuilder\u003CAppDbContext>()\n        .UseSqlite(\"Data Source=:memory:\") // in-memory для тестів\n        .Options;\n\n    var context = new AppDbContext(options);\n    context.Database.EnsureCreated();\n    return context;\n}\n","Tests/DatabaseFixture.cs",[2969,7076,7077,7091,7095,7113,7132,7140,7144,7162,7179,7188],{"__ignoreMap":3067},[3071,7078,7079,7081,7084,7086,7089],{"class":3073,"line":3074},[3071,7080,5482],{"class":3183},[3071,7082,7083],{"class":3183}," static",[3071,7085,4710],{"class":3526},[3071,7087,7088],{"class":3121}," CreateTestContext",[3071,7090,5594],{"class":3112},[3071,7092,7093],{"class":3073,"line":3081},[3071,7094,4132],{"class":3112},[3071,7096,7097,7099,7101,7103,7105,7107,7109,7111],{"class":3073,"line":3087},[3071,7098,5279],{"class":3183},[3071,7100,6959],{"class":3108},[3071,7102,3166],{"class":3112},[3071,7104,3453],{"class":3183},[3071,7106,6966],{"class":3526},[3071,7108,4230],{"class":3112},[3071,7110,5441],{"class":3526},[3071,7112,4236],{"class":3112},[3071,7114,7115,7118,7121,7123,7126,7129],{"class":3073,"line":3093},[3071,7116,7117],{"class":3112},"        .",[3071,7119,7120],{"class":3121},"UseSqlite",[3071,7122,3125],{"class":3112},[3071,7124,7125],{"class":3538},"\"Data Source=:memory:\"",[3071,7127,7128],{"class":3112},") ",[3071,7130,7131],{"class":3077},"// in-memory для тестів\n",[3071,7133,7134,7136,7138],{"class":3073,"line":3099},[3071,7135,7117],{"class":3112},[3071,7137,7036],{"class":3108},[3071,7139,3177],{"class":3112},[3071,7141,7142],{"class":3073,"line":3105},[3071,7143,3294],{"emptyLinePlaceholder":3293},[3071,7145,7146,7148,7150,7152,7154,7156,7158,7160],{"class":3073,"line":3134},[3071,7147,5279],{"class":3183},[3071,7149,3187],{"class":3108},[3071,7151,3166],{"class":3112},[3071,7153,3453],{"class":3183},[3071,7155,4710],{"class":3526},[3071,7157,3125],{"class":3112},[3071,7159,4715],{"class":3108},[3071,7161,3131],{"class":3112},[3071,7163,7164,7167,7169,7172,7174,7177],{"class":3073,"line":3155},[3071,7165,7166],{"class":3108},"    context",[3071,7168,3113],{"class":3112},[3071,7170,7171],{"class":3108},"Database",[3071,7173,3113],{"class":3112},[3071,7175,7176],{"class":3121},"EnsureCreated",[3071,7178,3666],{"class":3112},[3071,7180,7181,7184,7186],{"class":3073,"line":3180},[3071,7182,7183],{"class":4102},"    return",[3071,7185,3187],{"class":3108},[3071,7187,3177],{"class":3112},[3071,7189,7190],{"class":3073,"line":3297},[3071,7191,4195],{"class":3112},[3028,7193],{},[2960,7195,7197],{"id":7196},"idesigntimedbcontextfactory-для-cli-інструментів","IDesignTimeDbContextFactory: для CLI-інструментів",[2965,7199,7200,7201,3468,7204,7207,7208,7211],{},"Команди ",[2969,7202,7203],{},"dotnet ef migrations add",[2969,7205,7206],{},"dotnet ef database update"," потребують можливості ",[2992,7209,7210],{},"створити DbContext під час компіляції"," — без запущеного застосунку, без DI-контейнера.",[2965,7213,7214,7215,3044],{},"Якщо ваш DbContext конфігурується через DI і немає публічного конструктора без параметрів — CLI не зможе його створити. Для цього існує ",[2969,7216,7217],{},"IDesignTimeDbContextFactory\u003CTContext>",[3062,7219,7222],{"className":3064,"code":7220,"filename":7221,"language":3066,"meta":3067,"style":3067},"public class AppDbContextFactory : IDesignTimeDbContextFactory\u003CAppDbContext>\n{\n    public AppDbContext CreateDbContext(string[] args)\n    {\n        // Цей метод викликається ТІЛЬКИ CLI-інструментами\n        // НЕ викликається при нормальній роботі застосунку\n        var options = new DbContextOptionsBuilder\u003CAppDbContext>()\n            .UseNpgsql(\"Host=localhost;Database=mydb;Username=dev;Password=dev\")\n            .Options;\n\n        return new AppDbContext(options);\n    }\n}\n","Data/AppDbContextFactory.cs",[2969,7223,7224,7245,7249,7271,7275,7280,7285,7303,7317,7325,7329,7344,7348],{"__ignoreMap":3067},[3071,7225,7226,7228,7230,7233,7235,7238,7240,7242],{"class":3073,"line":3074},[3071,7227,5482],{"class":3183},[3071,7229,5485],{"class":3183},[3071,7231,7232],{"class":3526}," AppDbContextFactory",[3071,7234,5491],{"class":3112},[3071,7236,7237],{"class":3526},"IDesignTimeDbContextFactory",[3071,7239,4230],{"class":3112},[3071,7241,5441],{"class":3526},[3071,7243,7244],{"class":3112},">\n",[3071,7246,7247],{"class":3073,"line":3081},[3071,7248,4132],{"class":3112},[3071,7250,7251,7253,7255,7258,7260,7263,7266,7269],{"class":3073,"line":3087},[3071,7252,5522],{"class":3183},[3071,7254,4710],{"class":3526},[3071,7256,7257],{"class":3121}," CreateDbContext",[3071,7259,3125],{"class":3112},[3071,7261,7262],{"class":3183},"string",[3071,7264,7265],{"class":3112},"[] ",[3071,7267,7268],{"class":3108},"args",[3071,7270,4269],{"class":3112},[3071,7272,7273],{"class":3073,"line":3093},[3071,7274,5537],{"class":3112},[3071,7276,7277],{"class":3073,"line":3099},[3071,7278,7279],{"class":3077},"        // Цей метод викликається ТІЛЬКИ CLI-інструментами\n",[3071,7281,7282],{"class":3073,"line":3105},[3071,7283,7284],{"class":3077},"        // НЕ викликається при нормальній роботі застосунку\n",[3071,7286,7287,7289,7291,7293,7295,7297,7299,7301],{"class":3073,"line":3134},[3071,7288,5603],{"class":3183},[3071,7290,6959],{"class":3108},[3071,7292,3166],{"class":3112},[3071,7294,3453],{"class":3183},[3071,7296,6966],{"class":3526},[3071,7298,4230],{"class":3112},[3071,7300,5441],{"class":3526},[3071,7302,4236],{"class":3112},[3071,7304,7305,7308,7310,7312,7315],{"class":3073,"line":3155},[3071,7306,7307],{"class":3112},"            .",[3071,7309,5460],{"class":3121},[3071,7311,3125],{"class":3112},[3071,7313,7314],{"class":3538},"\"Host=localhost;Database=mydb;Username=dev;Password=dev\"",[3071,7316,4269],{"class":3112},[3071,7318,7319,7321,7323],{"class":3073,"line":3180},[3071,7320,7307],{"class":3112},[3071,7322,7036],{"class":3108},[3071,7324,3177],{"class":3112},[3071,7326,7327],{"class":3073,"line":3297},[3071,7328,3294],{"emptyLinePlaceholder":3293},[3071,7330,7331,7333,7336,7338,7340,7342],{"class":3073,"line":3303},[3071,7332,5626],{"class":4102},[3071,7334,7335],{"class":3183}," new",[3071,7337,4710],{"class":3526},[3071,7339,3125],{"class":3112},[3071,7341,4715],{"class":3108},[3071,7343,3131],{"class":3112},[3071,7345,7346],{"class":3073,"line":3309},[3071,7347,5556],{"class":3112},[3071,7349,7350],{"class":3073,"line":3315},[3071,7351,4195],{"class":3112},[2965,7353,7354,7355,3113],{},"EF Core CLI автоматично знаходить цей клас в асемблі і використовує його. Файл зазвичай кладуть поруч із ",[2969,7356,7357],{},"AppDbContext.cs",[4657,7359,7360,7361,3001,7364,7367,7368,7370,7371,7373,7374,7376],{},"Якщо ваш DbContext має конструктор ",[2969,7362,7363],{},"public AppDbContext(DbContextOptions\u003CAppDbContext> options)",[2992,7365,7366],{},"і"," DI-реєстрацію через ",[2969,7369,5436],{},", то для міграцій CLI зазвичай зможе самостійно визначити конфігурацію через ",[2969,7372,5965],{},". ",[2969,7375,7237],{}," потрібна переважно у нестандартних сценаріях (бібліотеки, складні конфігурації) або коли автовизначення не працює.",[3028,7378],{},[2960,7380,7382],{"id":7381},"changetrackerclear-коли-і-навіщо","ChangeTracker.Clear(): коли і навіщо",[2965,7384,7385,7388,7389,7392,7393,3113],{},[2969,7386,7387],{},"context.ChangeTracker.Clear()"," видаляє ",[2992,7390,7391],{},"всі"," відстежувані сутності з ChangeTracker. Це переводить їх у стан ",[2969,7394,3385],{},[3062,7396,7398],{"className":3064,"code":7397,"language":3066,"meta":3067,"style":3067},"// Завантажили 1000 сутностей — всі в ChangeTracker\nvar allBooks = await context.Books.ToListAsync();\n\n// Обробили, зберегли\nawait context.SaveChangesAsync();\n\n// Звільнили ChangeTracker — зменшили тиск на пам'ять\ncontext.ChangeTracker.Clear();\n\n// Тепер можна безпечно завантажити наступну партію\nvar nextBatch = await context.Books\n    .Where(b => b.Year > 2020)\n    .ToListAsync();\n",[2969,7399,7400,7405,7428,7432,7437,7449,7453,7458,7473,7477,7482,7500,7526],{"__ignoreMap":3067},[3071,7401,7402],{"class":3073,"line":3074},[3071,7403,7404],{"class":3077},"// Завантажили 1000 сутностей — всі в ChangeTracker\n",[3071,7406,7407,7409,7412,7414,7416,7418,7420,7422,7424,7426],{"class":3073,"line":3081},[3071,7408,3516],{"class":3183},[3071,7410,7411],{"class":3108}," allBooks",[3071,7413,3166],{"class":3112},[3071,7415,3184],{"class":3183},[3071,7417,3187],{"class":3108},[3071,7419,3113],{"class":3112},[3071,7421,3141],{"class":3108},[3071,7423,3113],{"class":3112},[3071,7425,4763],{"class":3121},[3071,7427,3666],{"class":3112},[3071,7429,7430],{"class":3073,"line":3087},[3071,7431,3294],{"emptyLinePlaceholder":3293},[3071,7433,7434],{"class":3073,"line":3093},[3071,7435,7436],{"class":3077},"// Обробили, зберегли\n",[3071,7438,7439,7441,7443,7445,7447],{"class":3073,"line":3099},[3071,7440,3184],{"class":3183},[3071,7442,3187],{"class":3108},[3071,7444,3113],{"class":3112},[3071,7446,3192],{"class":3121},[3071,7448,3666],{"class":3112},[3071,7450,7451],{"class":3073,"line":3105},[3071,7452,3294],{"emptyLinePlaceholder":3293},[3071,7454,7455],{"class":3073,"line":3134},[3071,7456,7457],{"class":3077},"// Звільнили ChangeTracker — зменшили тиск на пам'ять\n",[3071,7459,7460,7462,7464,7466,7468,7471],{"class":3073,"line":3155},[3071,7461,3109],{"class":3108},[3071,7463,3113],{"class":3112},[3071,7465,3369],{"class":3108},[3071,7467,3113],{"class":3112},[3071,7469,7470],{"class":3121},"Clear",[3071,7472,3666],{"class":3112},[3071,7474,7475],{"class":3073,"line":3180},[3071,7476,3294],{"emptyLinePlaceholder":3293},[3071,7478,7479],{"class":3073,"line":3297},[3071,7480,7481],{"class":3077},"// Тепер можна безпечно завантажити наступну партію\n",[3071,7483,7484,7486,7489,7491,7493,7495,7497],{"class":3073,"line":3303},[3071,7485,3516],{"class":3183},[3071,7487,7488],{"class":3108}," nextBatch",[3071,7490,3166],{"class":3112},[3071,7492,3184],{"class":3183},[3071,7494,3187],{"class":3108},[3071,7496,3113],{"class":3112},[3071,7498,7499],{"class":3108},"Books\n",[3071,7501,7502,7504,7506,7508,7510,7512,7514,7516,7519,7521,7524],{"class":3073,"line":3309},[3071,7503,4225],{"class":3112},[3071,7505,4243],{"class":3121},[3071,7507,3125],{"class":3112},[3071,7509,4330],{"class":3108},[3071,7511,4251],{"class":3112},[3071,7513,4330],{"class":3108},[3071,7515,3113],{"class":3112},[3071,7517,7518],{"class":3108},"Year",[3071,7520,5116],{"class":3112},[3071,7522,7523],{"class":3549},"2020",[3071,7525,4269],{"class":3112},[3071,7527,7528,7530,7532],{"class":3073,"line":3315},[3071,7529,4225],{"class":3112},[3071,7531,4763],{"class":3121},[3071,7533,3666],{"class":3112},[2965,7535,7536],{},[2992,7537,7538,7539,3044],{},"Коли потрібен ",[2969,7540,7541],{},"Clear()",[2978,7543,7544,7547,7553],{},[2981,7545,7546],{},"Пакетна обробка великих обсягів даних (batch processing), коли один контекст живе довго і ChangeTracker накопичує тисячі об'єктів",[2981,7548,7549,7550,7552],{},"Після ",[2969,7551,2975],{}," у довготривалих операціях, щоб звільнити пам'ять",[2981,7554,7555],{},"Коли треба «обнулити» контекст і завантажити свіжі дані з БД",[2965,7557,7558,7559,3044],{},"Для read-only операцій краще одразу використовувати ",[2969,7560,7561],{},"AsNoTracking()",[3062,7563,7565],{"className":3064,"code":7564,"language":3066,"meta":3067,"style":3067},"// Не потрапляє в ChangeTracker — не потребує Clear()\nvar books = await context.Books.AsNoTracking().ToListAsync();\n",[2969,7566,7567,7572],{"__ignoreMap":3067},[3071,7568,7569],{"class":3073,"line":3074},[3071,7570,7571],{"class":3077},"// Не потрапляє в ChangeTracker — не потребує Clear()\n",[3071,7573,7574,7576,7578,7580,7582,7584,7586,7588,7590,7593,7595,7597],{"class":3073,"line":3081},[3071,7575,3516],{"class":3183},[3071,7577,4748],{"class":3108},[3071,7579,3166],{"class":3112},[3071,7581,3184],{"class":3183},[3071,7583,3187],{"class":3108},[3071,7585,3113],{"class":3112},[3071,7587,3141],{"class":3108},[3071,7589,3113],{"class":3112},[3071,7591,7592],{"class":3121},"AsNoTracking",[3071,7594,4166],{"class":3112},[3071,7596,4763],{"class":3121},[3071,7598,3666],{"class":3112},[3028,7600],{},[2960,7602,7604],{"id":7603},"auto-detectchanges-вплив-на-продуктивність","Auto-DetectChanges: вплив на продуктивність",[2965,7606,7607,7610],{},[2969,7608,7609],{},"DetectChanges()"," — потенційно дорога операція. EF Core викликає її автоматично при:",[2978,7612,7613,7621,7627,7632],{},[2981,7614,7615,7617,7618],{},[2969,7616,2975],{}," / ",[2969,7619,7620],{},"SaveChangesAsync()",[2981,7622,7623,7626],{},[2969,7624,7625],{},"context.Entry(entity)"," (за замовчуванням)",[2981,7628,7629],{},[2969,7630,7631],{},"context.ChangeTracker.Entries()",[2981,7633,7634],{},"Деяких LINQ-операціях",[2965,7636,7637,7638,7641,7642,7644],{},"При тисячах відстежуваних сутностей — кожен ",[2969,7639,7640],{},"Entry()"," запускає ",[2969,7643,7609],{},", що сканує всі сутності. Це може суттєво сповільнити роботу.",[2965,7646,7647],{},[2992,7648,7649],{},"Вимкнення авто-DetectChanges:",[3062,7651,7653],{"className":3064,"code":7652,"language":3066,"meta":3067,"style":3067},"// Вимкнути AUTO-виклик DetectChanges\ncontext.ChangeTracker.AutoDetectChangesEnabled = false;\n\n// Тепер CRUD-операції не викликають DetectChanges автоматично\n// Ви маєте викликати його вручну перед SaveChanges, якщо потрібно\ncontext.ChangeTracker.DetectChanges();\nawait context.SaveChangesAsync();\n",[2969,7654,7655,7660,7680,7684,7689,7694,7709],{"__ignoreMap":3067},[3071,7656,7657],{"class":3073,"line":3074},[3071,7658,7659],{"class":3077},"// Вимкнути AUTO-виклик DetectChanges\n",[3071,7661,7662,7664,7666,7668,7670,7673,7675,7678],{"class":3073,"line":3081},[3071,7663,3109],{"class":3108},[3071,7665,3113],{"class":3112},[3071,7667,3369],{"class":3108},[3071,7669,3113],{"class":3112},[3071,7671,7672],{"class":3108},"AutoDetectChangesEnabled",[3071,7674,3166],{"class":3112},[3071,7676,7677],{"class":3183},"false",[3071,7679,3177],{"class":3112},[3071,7681,7682],{"class":3073,"line":3087},[3071,7683,3294],{"emptyLinePlaceholder":3293},[3071,7685,7686],{"class":3073,"line":3093},[3071,7687,7688],{"class":3077},"// Тепер CRUD-операції не викликають DetectChanges автоматично\n",[3071,7690,7691],{"class":3073,"line":3099},[3071,7692,7693],{"class":3077},"// Ви маєте викликати його вручну перед SaveChanges, якщо потрібно\n",[3071,7695,7696,7698,7700,7702,7704,7707],{"class":3073,"line":3105},[3071,7697,3109],{"class":3108},[3071,7699,3113],{"class":3112},[3071,7701,3369],{"class":3108},[3071,7703,3113],{"class":3112},[3071,7705,7706],{"class":3121},"DetectChanges",[3071,7708,3666],{"class":3112},[3071,7710,7711,7713,7715,7717,7719],{"class":3073,"line":3134},[3071,7712,3184],{"class":3183},[3071,7714,3187],{"class":3108},[3071,7716,3113],{"class":3112},[3071,7718,3192],{"class":3121},[3071,7720,3666],{"class":3112},[7722,7723,7724,7725,7727,7728,7730],"warning",{},"Вимикати ",[2969,7726,7672],{}," варто лише якщо ви точно знаєте, що робите і профайлером підтверджено проблему. Забуте ручне ",[2969,7729,7609],{}," призведе до того, що зміни не збережуться — і це буде дуже складно відлагодити.",[2965,7732,7733,7734,7737,7738,3579],{},"Для пакетної вставки великої кількості сутностей без читання — краще використовуйте ",[2969,7735,7736],{},"ExecuteUpdate/ExecuteDelete"," (EF Core 7+) або спеціалізовані бібліотеки (",[2969,7739,7740],{},"EFCore.BulkExtensions",[3028,7742],{},[2960,7744,7746],{"id":7745},"множинні-dbcontext-bounded-contexts","Множинні DbContext: Bounded Contexts",[2965,7748,7749,7750,7753],{},"Великі застосунки іноді мають кілька DbContext. Це реалізація концепції ",[2992,7751,7752],{},"Bounded Context"," із Domain-Driven Design — кожна область відповідальності має свою ізольовану модель.",[3062,7755,7757],{"className":3064,"code":7756,"language":3066,"meta":3067,"style":3067},"// Контекст для каталогу товарів (читання)\npublic class CatalogReadContext : DbContext\n{\n    public DbSet\u003CProductSummary> Products => Set\u003CProductSummary>();\n    // Налаштований на read-only з AsNoTracking по дефолту\n}\n\n// Контекст для обробки замовлень (повна модель)\npublic class OrdersContext : DbContext\n{\n    public DbSet\u003COrder> Orders => Set\u003COrder>();\n    public DbSet\u003COrderItem> OrderItems => Set\u003COrderItem>();\n    public DbSet\u003CCustomer> Customers => Set\u003CCustomer>();\n}\n\n// Контекст для адміністрування (окрема схема)\npublic class AdminContext : DbContext\n{\n    public DbSet\u003CUser> Users => Set\u003CUser>();\n    public DbSet\u003CRole> Roles => Set\u003CRole>();\n}\n",[2969,7758,7759,7764,7777,7781,7810,7815,7819,7823,7828,7841,7845,7870,7896,7922,7926,7930,7935,7948,7952,7978,8004],{"__ignoreMap":3067},[3071,7760,7761],{"class":3073,"line":3074},[3071,7762,7763],{"class":3077},"// Контекст для каталогу товарів (читання)\n",[3071,7765,7766,7768,7770,7773,7775],{"class":3073,"line":3081},[3071,7767,5482],{"class":3183},[3071,7769,5485],{"class":3183},[3071,7771,7772],{"class":3526}," CatalogReadContext",[3071,7774,5491],{"class":3112},[3071,7776,6487],{"class":3526},[3071,7778,7779],{"class":3073,"line":3087},[3071,7780,4132],{"class":3112},[3071,7782,7783,7785,7788,7790,7793,7795,7798,7800,7803,7805,7807],{"class":3073,"line":3093},[3071,7784,5522],{"class":3183},[3071,7786,7787],{"class":3526}," DbSet",[3071,7789,4230],{"class":3112},[3071,7791,7792],{"class":3526},"ProductSummary",[3071,7794,5588],{"class":3112},[3071,7796,7797],{"class":3108},"Products",[3071,7799,4251],{"class":3112},[3071,7801,7802],{"class":3121},"Set",[3071,7804,4230],{"class":3112},[3071,7806,7792],{"class":3526},[3071,7808,7809],{"class":3112},">();\n",[3071,7811,7812],{"class":3073,"line":3099},[3071,7813,7814],{"class":3077},"    // Налаштований на read-only з AsNoTracking по дефолту\n",[3071,7816,7817],{"class":3073,"line":3105},[3071,7818,4195],{"class":3112},[3071,7820,7821],{"class":3073,"line":3134},[3071,7822,3294],{"emptyLinePlaceholder":3293},[3071,7824,7825],{"class":3073,"line":3155},[3071,7826,7827],{"class":3077},"// Контекст для обробки замовлень (повна модель)\n",[3071,7829,7830,7832,7834,7837,7839],{"class":3073,"line":3180},[3071,7831,5482],{"class":3183},[3071,7833,5485],{"class":3183},[3071,7835,7836],{"class":3526}," OrdersContext",[3071,7838,5491],{"class":3112},[3071,7840,6487],{"class":3526},[3071,7842,7843],{"class":3073,"line":3297},[3071,7844,4132],{"class":3112},[3071,7846,7847,7849,7851,7853,7856,7858,7860,7862,7864,7866,7868],{"class":3073,"line":3303},[3071,7848,5522],{"class":3183},[3071,7850,7787],{"class":3526},[3071,7852,4230],{"class":3112},[3071,7854,7855],{"class":3526},"Order",[3071,7857,5588],{"class":3112},[3071,7859,5293],{"class":3108},[3071,7861,4251],{"class":3112},[3071,7863,7802],{"class":3121},[3071,7865,4230],{"class":3112},[3071,7867,7855],{"class":3526},[3071,7869,7809],{"class":3112},[3071,7871,7872,7874,7876,7878,7881,7883,7886,7888,7890,7892,7894],{"class":3073,"line":3309},[3071,7873,5522],{"class":3183},[3071,7875,7787],{"class":3526},[3071,7877,4230],{"class":3112},[3071,7879,7880],{"class":3526},"OrderItem",[3071,7882,5588],{"class":3112},[3071,7884,7885],{"class":3108},"OrderItems",[3071,7887,4251],{"class":3112},[3071,7889,7802],{"class":3121},[3071,7891,4230],{"class":3112},[3071,7893,7880],{"class":3526},[3071,7895,7809],{"class":3112},[3071,7897,7898,7900,7902,7904,7907,7909,7912,7914,7916,7918,7920],{"class":3073,"line":3315},[3071,7899,5522],{"class":3183},[3071,7901,7787],{"class":3526},[3071,7903,4230],{"class":3112},[3071,7905,7906],{"class":3526},"Customer",[3071,7908,5588],{"class":3112},[3071,7910,7911],{"class":3108},"Customers",[3071,7913,4251],{"class":3112},[3071,7915,7802],{"class":3121},[3071,7917,4230],{"class":3112},[3071,7919,7906],{"class":3526},[3071,7921,7809],{"class":3112},[3071,7923,7924],{"class":3073,"line":3320},[3071,7925,4195],{"class":3112},[3071,7927,7928],{"class":3073,"line":3326},[3071,7929,3294],{"emptyLinePlaceholder":3293},[3071,7931,7932],{"class":3073,"line":3332},[3071,7933,7934],{"class":3077},"// Контекст для адміністрування (окрема схема)\n",[3071,7936,7937,7939,7941,7944,7946],{"class":3073,"line":3338},[3071,7938,5482],{"class":3183},[3071,7940,5485],{"class":3183},[3071,7942,7943],{"class":3526}," AdminContext",[3071,7945,5491],{"class":3112},[3071,7947,6487],{"class":3526},[3071,7949,7950],{"class":3073,"line":3344},[3071,7951,4132],{"class":3112},[3071,7953,7954,7956,7958,7960,7963,7965,7968,7970,7972,7974,7976],{"class":3073,"line":3349},[3071,7955,5522],{"class":3183},[3071,7957,7787],{"class":3526},[3071,7959,4230],{"class":3112},[3071,7961,7962],{"class":3526},"User",[3071,7964,5588],{"class":3112},[3071,7966,7967],{"class":3108},"Users",[3071,7969,4251],{"class":3112},[3071,7971,7802],{"class":3121},[3071,7973,4230],{"class":3112},[3071,7975,7962],{"class":3526},[3071,7977,7809],{"class":3112},[3071,7979,7980,7982,7984,7986,7989,7991,7994,7996,7998,8000,8002],{"class":3073,"line":3355},[3071,7981,5522],{"class":3183},[3071,7983,7787],{"class":3526},[3071,7985,4230],{"class":3112},[3071,7987,7988],{"class":3526},"Role",[3071,7990,5588],{"class":3112},[3071,7992,7993],{"class":3108},"Roles",[3071,7995,4251],{"class":3112},[3071,7997,7802],{"class":3121},[3071,7999,4230],{"class":3112},[3071,8001,7988],{"class":3526},[3071,8003,7809],{"class":3112},[3071,8005,8006],{"class":3073,"line":3361},[3071,8007,4195],{"class":3112},[2965,8009,8010],{},"Реєстрація кількох контекстів у DI:",[3062,8012,8014],{"className":3064,"code":8013,"language":3066,"meta":3067,"style":3067},"builder.Services.AddDbContext\u003CCatalogReadContext>(opts =>\n    opts.UseNpgsql(connectionString));\n\nbuilder.Services.AddDbContext\u003COrdersContext>(opts =>\n    opts.UseNpgsql(connectionString));\n\nbuilder.Services.AddDbContext\u003CAdminContext>(opts =>\n    opts.UseNpgsql(connectionString));\n",[2969,8015,8016,8039,8053,8057,8080,8094,8098,8121],{"__ignoreMap":3067},[3071,8017,8018,8020,8022,8024,8026,8028,8030,8033,8035,8037],{"class":3073,"line":3074},[3071,8019,5426],{"class":3108},[3071,8021,3113],{"class":3112},[3071,8023,5431],{"class":3108},[3071,8025,3113],{"class":3112},[3071,8027,5436],{"class":3121},[3071,8029,4230],{"class":3112},[3071,8031,8032],{"class":3526},"CatalogReadContext",[3071,8034,5444],{"class":3112},[3071,8036,5447],{"class":3108},[3071,8038,5450],{"class":3112},[3071,8040,8041,8043,8045,8047,8049,8051],{"class":3073,"line":3081},[3071,8042,5455],{"class":3108},[3071,8044,3113],{"class":3112},[3071,8046,5460],{"class":3121},[3071,8048,3125],{"class":3112},[3071,8050,5465],{"class":3108},[3071,8052,5468],{"class":3112},[3071,8054,8055],{"class":3073,"line":3087},[3071,8056,3294],{"emptyLinePlaceholder":3293},[3071,8058,8059,8061,8063,8065,8067,8069,8071,8074,8076,8078],{"class":3073,"line":3093},[3071,8060,5426],{"class":3108},[3071,8062,3113],{"class":3112},[3071,8064,5431],{"class":3108},[3071,8066,3113],{"class":3112},[3071,8068,5436],{"class":3121},[3071,8070,4230],{"class":3112},[3071,8072,8073],{"class":3526},"OrdersContext",[3071,8075,5444],{"class":3112},[3071,8077,5447],{"class":3108},[3071,8079,5450],{"class":3112},[3071,8081,8082,8084,8086,8088,8090,8092],{"class":3073,"line":3099},[3071,8083,5455],{"class":3108},[3071,8085,3113],{"class":3112},[3071,8087,5460],{"class":3121},[3071,8089,3125],{"class":3112},[3071,8091,5465],{"class":3108},[3071,8093,5468],{"class":3112},[3071,8095,8096],{"class":3073,"line":3105},[3071,8097,3294],{"emptyLinePlaceholder":3293},[3071,8099,8100,8102,8104,8106,8108,8110,8112,8115,8117,8119],{"class":3073,"line":3134},[3071,8101,5426],{"class":3108},[3071,8103,3113],{"class":3112},[3071,8105,5431],{"class":3108},[3071,8107,3113],{"class":3112},[3071,8109,5436],{"class":3121},[3071,8111,4230],{"class":3112},[3071,8113,8114],{"class":3526},"AdminContext",[3071,8116,5444],{"class":3112},[3071,8118,5447],{"class":3108},[3071,8120,5450],{"class":3112},[3071,8122,8123,8125,8127,8129,8131,8133],{"class":3073,"line":3155},[3071,8124,5455],{"class":3108},[3071,8126,3113],{"class":3112},[3071,8128,5460],{"class":3121},[3071,8130,3125],{"class":3112},[3071,8132,5465],{"class":3108},[3071,8134,5468],{"class":3112},[2965,8136,8137],{},"Кожен контекст є незалежним — зі своїм ChangeTracker, своєю IModel, своїми транзакціями.",[3028,8139],{},[2960,8141,8143],{"id":8142},"практичні-завдання","Практичні завдання",[6405,8145,8146,8193,8252],{},[6408,8147,8150,8160,8179],{"icon":8148,"title":8149},"i-lucide-brain","Рівень 1: Дослідження",[2965,8151,8152,8155,8156,8159],{},[2992,8153,8154],{},"Завдання 1.1"," — Візьміть проєкт з попередньої статті (BookCatalog). Після кожної операції (Add, SaveChanges, зміна поля) виводьте у консоль ",[2969,8157,8158],{},"context.ChangeTracker.DebugView.ShortView",". Зафіксуйте, як змінюються стани сутностей протягом повного CRUD-циклу.",[2965,8161,8162,8165,8166,8168,8169,8172,8173,8175,8176,8178],{},[2992,8163,8164],{},"Завдання 1.2"," — Напишіть код, що демонструє Identity Map: завантажте книгу двічі (через ",[2969,8167,4009],{}," і через ",[2969,8170,8171],{},"Where().FirstAsync()","). Перевірте через ",[2969,8174,4626],{},", чи це один об'єкт. Поясніть, чому ",[2969,8177,4009],{}," не робить другий запит до БД.",[2965,8180,8181,8184,8185,8188,8189,8192],{},[2992,8182,8183],{},"Завдання 1.3"," — Спробуйте порушити thread safety: запустіть два паралельних ",[2969,8186,8187],{},"ToListAsync()"," на одному контексті через ",[2969,8190,8191],{},"Task.WhenAll",". Запишіть, яке виключення отримаєте і що пояснює повідомлення про помилку.",[6408,8194,8197,8211,8230],{"icon":8195,"title":8196},"i-lucide-bar-chart","Рівень 2: Практика",[2965,8198,8199,8202,8203,8206,8207,8210],{},[2992,8200,8201],{},"Завдання 2.1"," — Реалізуйте ",[2969,8204,8205],{},"IDesignTimeDbContextFactory\u003CAppDbContext>"," для проєкту BookCatalog. Переконайтесь, що ",[2969,8208,8209],{},"dotnet ef dbcontext info"," успішно виводить інформацію про контекст і його модель.",[2965,8212,8213,8216,8217,8219,8220,8222,8223,8226,8227,8229],{},[2992,8214,8215],{},"Завдання 2.2"," — Вимкніть ",[2969,8218,7672],{},". Змініть поле у сутності. Викличте ",[2969,8221,7620],{}," — чи збережеться зміна? Потім викличте ",[2969,8224,8225],{},"context.ChangeTracker.DetectChanges()"," і знову ",[2969,8228,7620],{},". Поясніть різницю.",[2965,8231,8232,8235,8236,8239,8240,2972,8242,2972,8244,2972,8246,8248,8249,8251],{},[2992,8233,8234],{},"Завдання 2.3"," — Напишіть метод ",[2969,8237,8238],{},"GetTrackerStats()",", що повертає кількість сутностей у кожному стані (",[2969,8241,3373],{},[2969,8243,3376],{},[2969,8245,3379],{},[2969,8247,3382],{},"). Використайте ",[2969,8250,7631],{}," і LINQ. Викликайте його у різні моменти CRUD-циклу і спостерігайте статистику.",[6408,8253,8256,8277],{"icon":8254,"title":8255},"i-lucide-rocket","Рівень 3: Складні сценарії",[2965,8257,8258,8261,8262,8265,8266,8269,8270,8272,8273,8276],{},[2992,8259,8260],{},"Завдання 3.1 — DbContextFactory в дії:"," Реалізуйте імітацію Background Service: клас ",[2969,8263,8264],{},"BookImportService"," з методом ",[2969,8267,8268],{},"ImportBooksAsync(IEnumerable\u003CBookDto> books)",". Сервіс повинен: (а) приймати дані партіями по 100 книжок, (б) використовувати ",[2969,8271,5777],{},", щоб кожна партія мала ",[2992,8274,8275],{},"свій"," DbContext, (в) виводити кількість збережених книг після кожної партії. Протестуйте з 350 книгами.",[2965,8278,8279,8282,8283,8286,8287,6263,8289,8291,8292,8294,8295,8297,8298,8300],{},[2992,8280,8281],{},"Завдання 3.2 — Bounded Context:"," Розбийте модель BookCatalog на два контексти: ",[2969,8284,8285],{},"PublicCatalogContext"," (тільки ",[2969,8288,3141],{},[2969,8290,3116],{}," з ",[2969,8293,7592],{}," за замовчуванням через ",[2969,8296,6424],{},") та ",[2969,8299,8114],{}," (всі сутності, повний доступ). Зареєструйте обидва. Напишіть сервіс, що з першого читає дані для відображення, а через другий — адмінські операції.",[3028,8302],{},[2960,8304,8306],{"id":8305},"підсумок","Підсумок",[3224,8308,8309,8314],{},[2965,8310,8311],{},[2992,8312,8313],{},"Ключові думки цієї статті:",[2978,8315,8316,8327,8345,8352,8357,8363,8369,8374,8382],{},[2981,8317,8318,8320,8321,8323,8324,8326],{},[2992,8319,2986],{}," реалізує два патерни: ",[2992,8322,3049],{}," (накопичення змін) та ",[2992,8325,3202],{}," (колекційний інтерфейс через DbSet)",[2981,8328,8329,8330,8332,8333,8335,8336,8338,8339,8341,8342,8344],{},"Внутрішня архітектура: ",[2992,8331,3369],{}," (стани), ",[2992,8334,3391],{}," (Identity Map), ",[2992,8337,3401],{}," (LINQ→SQL), ",[2992,8340,3407],{}," (з'єднання), ",[2992,8343,3417],{}," (скомпільована схема, кешується)",[2981,8346,8347,8349,8350],{},[2992,8348,3969],{},": EF Core зберігає оригінальні значення і порівнює з поточними при ",[2969,8351,2975],{},[2981,8353,8354,8356],{},[2992,8355,4537],{},": один DbContext → один C#-об'єкт на кожну сутність за PK",[2981,8358,8359,8362],{},[2992,8360,8361],{},"DbContext не є thread-safe"," — один екземпляр для однієї одиниці роботи",[2981,8364,8365,8366,8368],{},"Для фонових сервісів і Blazor — ",[2969,8367,5957],{}," замість прямого інжекту DbContext",[2981,8370,8371,8373],{},[2969,8372,6266],{}," дає ~10–15% поліпшення throughput при дуже високих навантаженнях",[2981,8375,8376,8378,8379,8381],{},[2992,8377,6421],{}," — провайдер і з'єднання; ",[2992,8380,6424],{}," — схема і конфігурація (кешується!)",[2981,8383,8384,8387,8388,8390],{},[2969,8385,8386],{},"ChangeTracker.Clear()"," для довготривалих операцій; ",[2969,8389,7561],{}," для read-only запитів",[2965,8392,8393,8394,8397],{},"Наступна стаття — ",[6699,8395,8396],{"href":476},"Провайдери баз даних"," — розбирає архітектуру провайдерів EF Core, відмінності між PostgreSQL, SQL Server, SQLite та InMemory, і як один C#-код підтримує різні СУБД.",[8399,8400,8401],"style",{},"html pre.shiki code .spJ8K, html code.shiki .spJ8K{--shiki-light:#008000;--shiki-default:#6A9955;--shiki-dark:#6A9955}html pre.shiki code .siwwj, html code.shiki .siwwj{--shiki-light:#001080;--shiki-default:#9CDCFE;--shiki-dark:#9CDCFE}html pre.shiki code .sHH4Y, html code.shiki .sHH4Y{--shiki-light:#000000;--shiki-default:#D4D4D4;--shiki-dark:#D4D4D4}html pre.shiki code .s8Opu, html code.shiki .s8Opu{--shiki-light:#795E26;--shiki-default:#DCDCAA;--shiki-dark:#DCDCAA}html pre.shiki code .su1O8, html code.shiki .su1O8{--shiki-light:#0000FF;--shiki-default:#569CD6;--shiki-dark:#569CD6}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .sN1BT, html code.shiki .sN1BT{--shiki-light:#267F99;--shiki-default:#4EC9B0;--shiki-dark:#4EC9B0}html pre.shiki code .sbdoH, html code.shiki .sbdoH{--shiki-light:#A31515;--shiki-default:#CE9178;--shiki-dark:#CE9178}html pre.shiki code .sJj4R, html code.shiki .sJj4R{--shiki-light:#098658;--shiki-default:#B5CEA8;--shiki-dark:#B5CEA8}html pre.shiki code .sCDza, html code.shiki .sCDza{--shiki-light:#AF00DB;--shiki-default:#CE92A4;--shiki-dark:#CE92A4}html pre.shiki code .sD7JJ, html code.shiki .sD7JJ{--shiki-light:#000000FF;--shiki-default:#D4D4D4;--shiki-dark:#D4D4D4}",{"title":3067,"searchDepth":3081,"depth":3081,"links":8403},[8404,8405,8409,8410,8417,8418,8421,8424,8425,8429,8430,8431,8432,8433,8434,8435,8436],{"id":2962,"depth":3081,"text":2963},{"id":3032,"depth":3081,"text":3033,"children":8406},[8407,8408],{"id":3048,"depth":3087,"text":3049},{"id":3201,"depth":3087,"text":3202},{"id":3235,"depth":3081,"text":3236},{"id":3427,"depth":3081,"text":3428,"children":8411},[8412,8413,8414,8415,8416],{"id":3434,"depth":3087,"text":3435},{"id":3500,"depth":3087,"text":3501},{"id":3968,"depth":3087,"text":3969},{"id":4083,"depth":3087,"text":4084},{"id":4418,"depth":3087,"text":4419},{"id":4530,"depth":3081,"text":4531},{"id":4679,"depth":3081,"text":4680,"children":8419},[8420],{"id":4981,"depth":3087,"text":4982},{"id":5028,"depth":3081,"text":5029,"children":8422},[8423],{"id":5203,"depth":3087,"text":5204},{"id":5951,"depth":3081,"text":5952},{"id":6257,"depth":3081,"text":6258,"children":8426},[8427,8428],{"id":6270,"depth":3087,"text":6271},{"id":6328,"depth":3087,"text":6329},{"id":6465,"depth":3081,"text":6466},{"id":6933,"depth":3081,"text":6934},{"id":7196,"depth":3081,"text":7197},{"id":7381,"depth":3081,"text":7382},{"id":7603,"depth":3081,"text":7604},{"id":7745,"depth":3081,"text":7746},{"id":8142,"depth":3081,"text":8143},{"id":8305,"depth":3081,"text":8306},"Глибоке занурення у внутрішню архітектуру DbContext — StateManager, ChangeTracker, QueryCompiler, lifecycle, потокобезпека, DbContextFactory та пул контекстів. Розуміння «під капотом» для написання правильного коду.","md",null,{},{"title":471,"description":8437},"jo8Xos1G4YKOJJ26wHOU-5Mv9mHrlcyNS4OAU9uQNpk",[8444,8446],{"title":467,"path":468,"stem":469,"description":8445,"children":-1},"Покрокове створення першого EF Core проєкту з нуля — встановлення пакетів, опис сутностей, конфігурація DbContext, рядок підключення, EnsureCreated та повний CRUD з анатомією кожної операції.",{"title":475,"path":476,"stem":477,"description":8447,"children":-1},"Глибокий огляд архітектури провайдерів EF Core, детальний розбір PostgreSQL, SQL Server, SQLite, MySQL та InMemory — їх специфічні типи, конфігурація, відмінності поведінки та матриця вибору для реальних проєктів.",1777912586743]