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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 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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 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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 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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 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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 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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. 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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":591,"body":2951,"description":7420,"extension":7421,"links":7422,"meta":7423,"navigation":3213,"path":592,"seo":7424,"stem":593,"__hash__":7425},"docs/01.csharp/10.ef-core/20.change-tracking-part2.md",{"type":2952,"value":2953,"toc":7387},"minimark",[2954,2959,2972,2975,2980,2983,2994,3005,3012,3022,3024,3028,3031,3036,3039,3368,3374,3380,3384,3387,3643,3648,3653,3657,3811,3827,3829,3833,3836,3856,3860,4511,4513,4517,4520,4663,4669,4673,4836,4840,4892,4898,5010,5020,5022,5026,5033,5698,5709,5711,5715,5718,5838,5842,6108,6112,6115,6203,6205,6209,6212,6216,6451,6455,6844,6847,6849,6853,6857,6993,6997,7178,7182,7246,7248,7252,7255,7260,7291,7296,7331,7346,7348,7352,7383],[2955,2956,2958],"h1",{"id":2957},"change-tracker-графи-обєктів-та-disconnected-сценарії","Change Tracker: Графи Об'єктів та Disconnected Сценарії",[2960,2961,2962],"blockquote",{},[2963,2964,2965,2966,2971],"p",{},"Це продовження статті ",[2967,2968,2970],"a",{"href":2969},"/csharp/ef-core/20.change-tracking-part1","«Change Tracker»",". Читайте послідовно.",[2973,2974],"hr",{},[2976,2977,2979],"h2",{"id":2978},"connected-vs-disconnected-ключове-розмежування","Connected vs Disconnected: ключове розмежування",[2963,2981,2982],{},"У веб-розробці з EF Core є фундаментальне розмежування між двома сценаріями роботи:",[2963,2984,2985,2989,2990,2993],{},[2986,2987,2988],"strong",{},"Connected"," — entity завантажується і змінюється ",[2986,2991,2992],{},"в межах одного DbContext",". Трекер бачить початковий стан і всі зміни — ніяких додаткових кроків не потрібно.",[2963,2995,2996,2999,3000,3004],{},[2986,2997,2998],{},"Disconnected"," — entity завантажується в одному запиті (або десеріалізується з HTTP тіла), передається клієнту, а потім повертається назад у новому HTTP-запиті. Новий DbContext не знає про попередній стан — entity є ",[3001,3002,3003],"code",{},"Detached",".",[2963,3006,3007,3008,3011],{},"Це розмежування критичне, бо HTTP природно є stateless: кожен запит — новий DbContext (Scoped). Тому ",[2986,3009,3010],{},"більшість веб-сценаріїв є disconnected",":",[3013,3014,3019],"pre",{"className":3015,"code":3017,"language":3018},[3016],"language-text","GET /api/orders/42\n  → DbContext #1: завантажує Order #42, серіалізує в JSON, закривається\n  \n// Клієнт отримує JSON, редагує поле Status\n\nPUT /api/orders/42\n  → DbContext #2: отримує JSON, десеріалізує в новий Order об'єкт\n  → Цей об'єкт DETACHED — DbContext #2 не знає що він завантажений\n","text",[3001,3020,3017],{"__ignoreMap":3021},"",[2973,3023],{},[2976,3025,3027],{"id":3026},"disconnected-сценарій-три-підходи-до-збереження","Disconnected сценарій: три підходи до збереження",[2963,3029,3030],{},"Розглянемо PUT endpoint — клієнт надіслав змінений Order. Як правильно зберегти?",[3032,3033,3035],"h3",{"id":3034},"підхід-a-завантажити-оновити-зберегти-рекомендований","Підхід A: Завантажити → Оновити → Зберегти (рекомендований)",[2963,3037,3038],{},"Найнадійніший і найбезпечніший підхід: не довіряєте клієнту — завантажуєте актуальний стан з бази і оновлюєте лише те що дозволено:",[3013,3040,3044],{"className":3041,"code":3042,"language":3043,"meta":3021,"style":3021},"language-csharp shiki shiki-themes light-plus dark-plus dark-plus","[HttpPut(\"{id}\")]\npublic async Task\u003CIActionResult> UpdateOrder(int id, UpdateOrderDto dto)\n{\n    // Крок 1: Завантажити актуальний стан з бази (Tracked)\n    var order = await context.Orders\n        .Include(o => o.LineItems)\n        .FirstOrDefaultAsync(o => o.Id == id);\n\n    if (order is null) return NotFound();\n\n    // Крок 2: Оновити лише дозволені поля (не довіряємо клієнту)\n    order.Status  = dto.Status;\n    order.Notes   = dto.Notes;\n    // order.CustomerId — НЕ оновлюємо (не можна змінити клієнта замовлення)\n    // order.CreatedAt — НЕ оновлюємо (незмінне)\n\n    // Крок 3: SaveChanges — Change Tracker знає що змінилось\n    await context.SaveChanges();\n    // UPDATE Orders SET Status=@s, Notes=@n WHERE Id=@id  ← тільки змінене!\n\n    return NoContent();\n}\n","csharp",[3001,3045,3046,3069,3116,3122,3129,3152,3178,3208,3215,3246,3251,3257,3281,3302,3308,3314,3319,3325,3340,3346,3351,3362],{"__ignoreMap":3021},[3047,3048,3051,3055,3059,3062,3066],"span",{"class":3049,"line":3050},"line",1,[3047,3052,3054],{"class":3053},"sHH4Y","[",[3047,3056,3058],{"class":3057},"sN1BT","HttpPut",[3047,3060,3061],{"class":3053},"(",[3047,3063,3065],{"class":3064},"sbdoH","\"{id}\"",[3047,3067,3068],{"class":3053},")]\n",[3047,3070,3072,3076,3079,3082,3085,3088,3091,3095,3097,3100,3104,3107,3110,3113],{"class":3049,"line":3071},2,[3047,3073,3075],{"class":3074},"su1O8","public",[3047,3077,3078],{"class":3074}," async",[3047,3080,3081],{"class":3057}," Task",[3047,3083,3084],{"class":3053},"\u003C",[3047,3086,3087],{"class":3057},"IActionResult",[3047,3089,3090],{"class":3053},"> ",[3047,3092,3094],{"class":3093},"s8Opu","UpdateOrder",[3047,3096,3061],{"class":3053},[3047,3098,3099],{"class":3074},"int",[3047,3101,3103],{"class":3102},"siwwj"," id",[3047,3105,3106],{"class":3053},", ",[3047,3108,3109],{"class":3057},"UpdateOrderDto",[3047,3111,3112],{"class":3102}," dto",[3047,3114,3115],{"class":3053},")\n",[3047,3117,3119],{"class":3049,"line":3118},3,[3047,3120,3121],{"class":3053},"{\n",[3047,3123,3125],{"class":3049,"line":3124},4,[3047,3126,3128],{"class":3127},"spJ8K","    // Крок 1: Завантажити актуальний стан з бази (Tracked)\n",[3047,3130,3132,3135,3138,3141,3144,3147,3149],{"class":3049,"line":3131},5,[3047,3133,3134],{"class":3074},"    var",[3047,3136,3137],{"class":3102}," order",[3047,3139,3140],{"class":3053}," = ",[3047,3142,3143],{"class":3074},"await",[3047,3145,3146],{"class":3102}," context",[3047,3148,3004],{"class":3053},[3047,3150,3151],{"class":3102},"Orders\n",[3047,3153,3155,3158,3161,3163,3166,3169,3171,3173,3176],{"class":3049,"line":3154},6,[3047,3156,3157],{"class":3053},"        .",[3047,3159,3160],{"class":3093},"Include",[3047,3162,3061],{"class":3053},[3047,3164,3165],{"class":3102},"o",[3047,3167,3168],{"class":3053}," => ",[3047,3170,3165],{"class":3102},[3047,3172,3004],{"class":3053},[3047,3174,3175],{"class":3102},"LineItems",[3047,3177,3115],{"class":3053},[3047,3179,3181,3183,3186,3188,3190,3192,3194,3196,3199,3202,3205],{"class":3049,"line":3180},7,[3047,3182,3157],{"class":3053},[3047,3184,3185],{"class":3093},"FirstOrDefaultAsync",[3047,3187,3061],{"class":3053},[3047,3189,3165],{"class":3102},[3047,3191,3168],{"class":3053},[3047,3193,3165],{"class":3102},[3047,3195,3004],{"class":3053},[3047,3197,3198],{"class":3102},"Id",[3047,3200,3201],{"class":3053}," == ",[3047,3203,3204],{"class":3102},"id",[3047,3206,3207],{"class":3053},");\n",[3047,3209,3211],{"class":3049,"line":3210},8,[3047,3212,3214],{"emptyLinePlaceholder":3213},true,"\n",[3047,3216,3218,3222,3225,3228,3231,3234,3237,3240,3243],{"class":3049,"line":3217},9,[3047,3219,3221],{"class":3220},"sCDza","    if",[3047,3223,3224],{"class":3053}," (",[3047,3226,3227],{"class":3102},"order",[3047,3229,3230],{"class":3074}," is",[3047,3232,3233],{"class":3074}," null",[3047,3235,3236],{"class":3053},") ",[3047,3238,3239],{"class":3220},"return",[3047,3241,3242],{"class":3093}," NotFound",[3047,3244,3245],{"class":3053},"();\n",[3047,3247,3249],{"class":3049,"line":3248},10,[3047,3250,3214],{"emptyLinePlaceholder":3213},[3047,3252,3254],{"class":3049,"line":3253},11,[3047,3255,3256],{"class":3127},"    // Крок 2: Оновити лише дозволені поля (не довіряємо клієнту)\n",[3047,3258,3260,3263,3265,3268,3271,3274,3276,3278],{"class":3049,"line":3259},12,[3047,3261,3262],{"class":3102},"    order",[3047,3264,3004],{"class":3053},[3047,3266,3267],{"class":3102},"Status",[3047,3269,3270],{"class":3053},"  = ",[3047,3272,3273],{"class":3102},"dto",[3047,3275,3004],{"class":3053},[3047,3277,3267],{"class":3102},[3047,3279,3280],{"class":3053},";\n",[3047,3282,3284,3286,3288,3291,3294,3296,3298,3300],{"class":3049,"line":3283},13,[3047,3285,3262],{"class":3102},[3047,3287,3004],{"class":3053},[3047,3289,3290],{"class":3102},"Notes",[3047,3292,3293],{"class":3053},"   = ",[3047,3295,3273],{"class":3102},[3047,3297,3004],{"class":3053},[3047,3299,3290],{"class":3102},[3047,3301,3280],{"class":3053},[3047,3303,3305],{"class":3049,"line":3304},14,[3047,3306,3307],{"class":3127},"    // order.CustomerId — НЕ оновлюємо (не можна змінити клієнта замовлення)\n",[3047,3309,3311],{"class":3049,"line":3310},15,[3047,3312,3313],{"class":3127},"    // order.CreatedAt — НЕ оновлюємо (незмінне)\n",[3047,3315,3317],{"class":3049,"line":3316},16,[3047,3318,3214],{"emptyLinePlaceholder":3213},[3047,3320,3322],{"class":3049,"line":3321},17,[3047,3323,3324],{"class":3127},"    // Крок 3: SaveChanges — Change Tracker знає що змінилось\n",[3047,3326,3328,3331,3333,3335,3338],{"class":3049,"line":3327},18,[3047,3329,3330],{"class":3074},"    await",[3047,3332,3146],{"class":3102},[3047,3334,3004],{"class":3053},[3047,3336,3337],{"class":3093},"SaveChanges",[3047,3339,3245],{"class":3053},[3047,3341,3343],{"class":3049,"line":3342},19,[3047,3344,3345],{"class":3127},"    // UPDATE Orders SET Status=@s, Notes=@n WHERE Id=@id  ← тільки змінене!\n",[3047,3347,3349],{"class":3049,"line":3348},20,[3047,3350,3214],{"emptyLinePlaceholder":3213},[3047,3352,3354,3357,3360],{"class":3049,"line":3353},21,[3047,3355,3356],{"class":3220},"    return",[3047,3358,3359],{"class":3093}," NoContent",[3047,3361,3245],{"class":3053},[3047,3363,3365],{"class":3049,"line":3364},22,[3047,3366,3367],{"class":3053},"}\n",[2963,3369,3370,3373],{},[2986,3371,3372],{},"Переваги",": безпечний (ізоляція від клієнтських маніпуляцій), генерує мінімальний UPDATE, підтримує Optimistic Concurrency.",[2963,3375,3376,3379],{},[2986,3377,3378],{},"Недоліки",": два звернення до бази (SELECT + UPDATE). Прийнятно для більшості OLTP-сценаріїв.",[3032,3381,3383],{"id":3382},"підхід-b-attach-з-ручним-позначенням-modified","Підхід B: Attach з ручним позначенням Modified",[2963,3385,3386],{},"Коли SELECT занадто дорогий або даних нема у базі (перевіряти нічого):",[3013,3388,3390],{"className":3041,"code":3389,"language":3043,"meta":3021,"style":3021},"[HttpPut(\"{id}\")]\npublic async Task\u003CIActionResult> UpdateOrderStatus(int id, string newStatus)\n{\n    // Знаємо точно що хочемо оновити: лише Status\n    var order = new Order { Id = id, Status = newStatus };\n\n    context.Orders.Attach(order);                                      // Detached → Unchanged\n    context.Entry(order).Property(o => o.Status).IsModified = true;   // лише Status → Modified\n\n    try\n    {\n        await context.SaveChanges();\n        // UPDATE Orders SET Status=@s WHERE Id=@id  ← без зайвого SELECT!\n    }\n    catch (DbUpdateConcurrencyException)\n    {\n        return NotFound(); // рядок не існує (0 affected)\n    }\n\n    return NoContent();\n}\n",[3001,3391,3392,3404,3437,3441,3446,3481,3485,3510,3557,3561,3566,3571,3584,3589,3594,3606,3610,3623,3627,3631,3639],{"__ignoreMap":3021},[3047,3393,3394,3396,3398,3400,3402],{"class":3049,"line":3050},[3047,3395,3054],{"class":3053},[3047,3397,3058],{"class":3057},[3047,3399,3061],{"class":3053},[3047,3401,3065],{"class":3064},[3047,3403,3068],{"class":3053},[3047,3405,3406,3408,3410,3412,3414,3416,3418,3421,3423,3425,3427,3429,3432,3435],{"class":3049,"line":3071},[3047,3407,3075],{"class":3074},[3047,3409,3078],{"class":3074},[3047,3411,3081],{"class":3057},[3047,3413,3084],{"class":3053},[3047,3415,3087],{"class":3057},[3047,3417,3090],{"class":3053},[3047,3419,3420],{"class":3093},"UpdateOrderStatus",[3047,3422,3061],{"class":3053},[3047,3424,3099],{"class":3074},[3047,3426,3103],{"class":3102},[3047,3428,3106],{"class":3053},[3047,3430,3431],{"class":3074},"string",[3047,3433,3434],{"class":3102}," newStatus",[3047,3436,3115],{"class":3053},[3047,3438,3439],{"class":3049,"line":3118},[3047,3440,3121],{"class":3053},[3047,3442,3443],{"class":3049,"line":3124},[3047,3444,3445],{"class":3127},"    // Знаємо точно що хочемо оновити: лише Status\n",[3047,3447,3448,3450,3452,3454,3457,3460,3463,3465,3467,3469,3471,3473,3475,3478],{"class":3049,"line":3131},[3047,3449,3134],{"class":3074},[3047,3451,3137],{"class":3102},[3047,3453,3140],{"class":3053},[3047,3455,3456],{"class":3074},"new",[3047,3458,3459],{"class":3057}," Order",[3047,3461,3462],{"class":3053}," { ",[3047,3464,3198],{"class":3102},[3047,3466,3140],{"class":3053},[3047,3468,3204],{"class":3102},[3047,3470,3106],{"class":3053},[3047,3472,3267],{"class":3102},[3047,3474,3140],{"class":3053},[3047,3476,3477],{"class":3102},"newStatus",[3047,3479,3480],{"class":3053}," };\n",[3047,3482,3483],{"class":3049,"line":3154},[3047,3484,3214],{"emptyLinePlaceholder":3213},[3047,3486,3487,3490,3492,3495,3497,3500,3502,3504,3507],{"class":3049,"line":3180},[3047,3488,3489],{"class":3102},"    context",[3047,3491,3004],{"class":3053},[3047,3493,3494],{"class":3102},"Orders",[3047,3496,3004],{"class":3053},[3047,3498,3499],{"class":3093},"Attach",[3047,3501,3061],{"class":3053},[3047,3503,3227],{"class":3102},[3047,3505,3506],{"class":3053},");                                      ",[3047,3508,3509],{"class":3127},"// Detached → Unchanged\n",[3047,3511,3512,3514,3516,3519,3521,3523,3526,3529,3531,3533,3535,3537,3539,3541,3543,3546,3548,3551,3554],{"class":3049,"line":3210},[3047,3513,3489],{"class":3102},[3047,3515,3004],{"class":3053},[3047,3517,3518],{"class":3093},"Entry",[3047,3520,3061],{"class":3053},[3047,3522,3227],{"class":3102},[3047,3524,3525],{"class":3053},").",[3047,3527,3528],{"class":3093},"Property",[3047,3530,3061],{"class":3053},[3047,3532,3165],{"class":3102},[3047,3534,3168],{"class":3053},[3047,3536,3165],{"class":3102},[3047,3538,3004],{"class":3053},[3047,3540,3267],{"class":3102},[3047,3542,3525],{"class":3053},[3047,3544,3545],{"class":3102},"IsModified",[3047,3547,3140],{"class":3053},[3047,3549,3550],{"class":3074},"true",[3047,3552,3553],{"class":3053},";   ",[3047,3555,3556],{"class":3127},"// лише Status → Modified\n",[3047,3558,3559],{"class":3049,"line":3217},[3047,3560,3214],{"emptyLinePlaceholder":3213},[3047,3562,3563],{"class":3049,"line":3248},[3047,3564,3565],{"class":3220},"    try\n",[3047,3567,3568],{"class":3049,"line":3253},[3047,3569,3570],{"class":3053},"    {\n",[3047,3572,3573,3576,3578,3580,3582],{"class":3049,"line":3259},[3047,3574,3575],{"class":3074},"        await",[3047,3577,3146],{"class":3102},[3047,3579,3004],{"class":3053},[3047,3581,3337],{"class":3093},[3047,3583,3245],{"class":3053},[3047,3585,3586],{"class":3049,"line":3283},[3047,3587,3588],{"class":3127},"        // UPDATE Orders SET Status=@s WHERE Id=@id  ← без зайвого SELECT!\n",[3047,3590,3591],{"class":3049,"line":3304},[3047,3592,3593],{"class":3053},"    }\n",[3047,3595,3596,3599,3601,3604],{"class":3049,"line":3310},[3047,3597,3598],{"class":3220},"    catch",[3047,3600,3224],{"class":3053},[3047,3602,3603],{"class":3057},"DbUpdateConcurrencyException",[3047,3605,3115],{"class":3053},[3047,3607,3608],{"class":3049,"line":3316},[3047,3609,3570],{"class":3053},[3047,3611,3612,3615,3617,3620],{"class":3049,"line":3321},[3047,3613,3614],{"class":3220},"        return",[3047,3616,3242],{"class":3093},[3047,3618,3619],{"class":3053},"(); ",[3047,3621,3622],{"class":3127},"// рядок не існує (0 affected)\n",[3047,3624,3625],{"class":3049,"line":3327},[3047,3626,3593],{"class":3053},[3047,3628,3629],{"class":3049,"line":3342},[3047,3630,3214],{"emptyLinePlaceholder":3213},[3047,3632,3633,3635,3637],{"class":3049,"line":3348},[3047,3634,3356],{"class":3220},[3047,3636,3359],{"class":3093},[3047,3638,3245],{"class":3053},[3047,3640,3641],{"class":3049,"line":3353},[3047,3642,3367],{"class":3053},[2963,3644,3645,3647],{},[2986,3646,3372],{},": один SQL (без SELECT), мінімальний UPDATE.",[2963,3649,3650,3652],{},[2986,3651,3378],{},": потрібно точно знати які поля змінено. Розробник несе відповідальність за коректність.",[3032,3654,3656],{"id":3655},"підхід-c-contextupdate-обережно","Підхід C: context.Update (обережно!)",[3013,3658,3660],{"className":3041,"code":3659,"language":3043,"meta":3021,"style":3021},"// Часто використовують, але це неоптимально:\n[HttpPut(\"{id}\")]\npublic async Task\u003CIActionResult> UpdateOrder(int id, UpdateOrderDto dto)\n{\n    var order = _mapper.Map\u003COrder>(dto); // маппинг DTO → Entity\n    order.Id = id;\n\n    context.Orders.Update(order); // ← всі властивості Modified!\n    await context.SaveChanges();\n    // UPDATE Orders SET Status=@s, Notes=@n, CustomerId=@c, CreatedAt=@t, ... WHERE Id=@id\n    // Всі стовпці у SET — навіть ті що не змінювались!\n}\n",[3001,3661,3662,3667,3679,3709,3713,3745,3759,3763,3785,3797,3802,3807],{"__ignoreMap":3021},[3047,3663,3664],{"class":3049,"line":3050},[3047,3665,3666],{"class":3127},"// Часто використовують, але це неоптимально:\n",[3047,3668,3669,3671,3673,3675,3677],{"class":3049,"line":3071},[3047,3670,3054],{"class":3053},[3047,3672,3058],{"class":3057},[3047,3674,3061],{"class":3053},[3047,3676,3065],{"class":3064},[3047,3678,3068],{"class":3053},[3047,3680,3681,3683,3685,3687,3689,3691,3693,3695,3697,3699,3701,3703,3705,3707],{"class":3049,"line":3118},[3047,3682,3075],{"class":3074},[3047,3684,3078],{"class":3074},[3047,3686,3081],{"class":3057},[3047,3688,3084],{"class":3053},[3047,3690,3087],{"class":3057},[3047,3692,3090],{"class":3053},[3047,3694,3094],{"class":3093},[3047,3696,3061],{"class":3053},[3047,3698,3099],{"class":3074},[3047,3700,3103],{"class":3102},[3047,3702,3106],{"class":3053},[3047,3704,3109],{"class":3057},[3047,3706,3112],{"class":3102},[3047,3708,3115],{"class":3053},[3047,3710,3711],{"class":3049,"line":3124},[3047,3712,3121],{"class":3053},[3047,3714,3715,3717,3719,3721,3724,3726,3729,3731,3734,3737,3739,3742],{"class":3049,"line":3131},[3047,3716,3134],{"class":3074},[3047,3718,3137],{"class":3102},[3047,3720,3140],{"class":3053},[3047,3722,3723],{"class":3102},"_mapper",[3047,3725,3004],{"class":3053},[3047,3727,3728],{"class":3093},"Map",[3047,3730,3084],{"class":3053},[3047,3732,3733],{"class":3057},"Order",[3047,3735,3736],{"class":3053},">(",[3047,3738,3273],{"class":3102},[3047,3740,3741],{"class":3053},"); ",[3047,3743,3744],{"class":3127},"// маппинг DTO → Entity\n",[3047,3746,3747,3749,3751,3753,3755,3757],{"class":3049,"line":3154},[3047,3748,3262],{"class":3102},[3047,3750,3004],{"class":3053},[3047,3752,3198],{"class":3102},[3047,3754,3140],{"class":3053},[3047,3756,3204],{"class":3102},[3047,3758,3280],{"class":3053},[3047,3760,3761],{"class":3049,"line":3180},[3047,3762,3214],{"emptyLinePlaceholder":3213},[3047,3764,3765,3767,3769,3771,3773,3776,3778,3780,3782],{"class":3049,"line":3210},[3047,3766,3489],{"class":3102},[3047,3768,3004],{"class":3053},[3047,3770,3494],{"class":3102},[3047,3772,3004],{"class":3053},[3047,3774,3775],{"class":3093},"Update",[3047,3777,3061],{"class":3053},[3047,3779,3227],{"class":3102},[3047,3781,3741],{"class":3053},[3047,3783,3784],{"class":3127},"// ← всі властивості Modified!\n",[3047,3786,3787,3789,3791,3793,3795],{"class":3049,"line":3217},[3047,3788,3330],{"class":3074},[3047,3790,3146],{"class":3102},[3047,3792,3004],{"class":3053},[3047,3794,3337],{"class":3093},[3047,3796,3245],{"class":3053},[3047,3798,3799],{"class":3049,"line":3248},[3047,3800,3801],{"class":3127},"    // UPDATE Orders SET Status=@s, Notes=@n, CustomerId=@c, CreatedAt=@t, ... WHERE Id=@id\n",[3047,3803,3804],{"class":3049,"line":3253},[3047,3805,3806],{"class":3127},"    // Всі стовпці у SET — навіть ті що не змінювались!\n",[3047,3808,3809],{"class":3049,"line":3259},[3047,3810,3367],{"class":3053},[2963,3812,3813,3815,3816,3819,3820,3106,3823,3826],{},[3001,3814,3775],{}," позначає ",[2986,3817,3818],{},"всі"," властивості як Modified — генерує «жирний» UPDATE. Також може перезаписати поля що клієнт не мав права змінювати (якщо ",[3001,3821,3822],{},"CreatedAt",[3001,3824,3825],{},"CustomerId"," є у DTO і маппер заповнив їх).",[2973,3828],{},[2976,3830,3832],{"id":3831},"обробка-навігаційних-властивостей-при-disconnected","Обробка навігаційних властивостей при Disconnected",[2963,3834,3835],{},"Disconnected сценарій ускладнюється коли entity має навігаційні властивості — дочірні колекції:",[3013,3837,3839],{"className":3041,"code":3838,"language":3043,"meta":3021,"style":3021},"// Клієнт надіслав Order з оновленими LineItems:\n// Старий: LineItems [Id=1, Id=2, Id=3]\n// Новий:  LineItems [Id=1 (змінений), Id=3 (незмінений), Id=4 (новий), Id=2 (видалений)]\n",[3001,3840,3841,3846,3851],{"__ignoreMap":3021},[3047,3842,3843],{"class":3049,"line":3050},[3047,3844,3845],{"class":3127},"// Клієнт надіслав Order з оновленими LineItems:\n",[3047,3847,3848],{"class":3049,"line":3071},[3047,3849,3850],{"class":3127},"// Старий: LineItems [Id=1, Id=2, Id=3]\n",[3047,3852,3853],{"class":3049,"line":3118},[3047,3854,3855],{"class":3127},"// Новий:  LineItems [Id=1 (змінений), Id=3 (незмінений), Id=4 (новий), Id=2 (видалений)]\n",[3032,3857,3859],{"id":3858},"правильне-порівняння-колекцій","Правильне порівняння колекцій",[3013,3861,3863],{"className":3041,"code":3862,"language":3043,"meta":3021,"style":3021},"[HttpPut(\"{id}\")]\npublic async Task\u003CIActionResult> UpdateOrderWithItems(int id, OrderUpdateDto dto)\n{\n    // Завантажуємо актуальний стан з УСІМА рядками\n    var order = await context.Orders\n        .Include(o => o.LineItems)\n        .FirstOrDefaultAsync(o => o.Id == id);\n\n    if (order is null) return NotFound();\n\n    // Оновлюємо базові поля\n    order.Notes = dto.Notes;\n\n    // Знаходимо видалені рядки: є у БД, але немає у dto\n    var dtoItemIds = dto.LineItems.Select(li => li.Id).ToHashSet();\n    var itemsToRemove = order.LineItems\n        .Where(li => li.Id != 0 && !dtoItemIds.Contains(li.Id))\n        .ToList();\n\n    foreach (var item in itemsToRemove)\n        context.OrderLineItems.Remove(item);\n\n    // Оновлюємо існуючі та додаємо нові\n    foreach (var dtoItem in dto.LineItems)\n    {\n        var existing = order.LineItems.FirstOrDefault(li => li.Id == dtoItem.Id);\n\n        if (existing is not null)\n        {\n            // Існуючий: оновлюємо поля\n            existing.Quantity  = dtoItem.Quantity;\n            existing.UnitPrice = dtoItem.UnitPrice;\n        }\n        else\n        {\n            // Новий: додаємо до колекції\n            order.LineItems.Add(new OrderLineItem\n            {\n                ProductId  = dtoItem.ProductId,\n                Quantity   = dtoItem.Quantity,\n                UnitPrice  = dtoItem.UnitPrice\n            });\n        }\n    }\n\n    await context.SaveChanges();\n    // DELETE де потрібно, UPDATE де треба, INSERT для нових\n    return NoContent();\n}\n",[3001,3864,3865,3877,3909,3913,3918,3934,3954,3978,3982,4002,4006,4011,4029,4033,4038,4078,4094,4142,4151,4155,4175,4197,4201,4207,4229,4234,4279,4284,4304,4310,4316,4337,4357,4363,4369,4374,4380,4402,4408,4426,4442,4457,4463,4468,4473,4478,4491,4497,4506],{"__ignoreMap":3021},[3047,3866,3867,3869,3871,3873,3875],{"class":3049,"line":3050},[3047,3868,3054],{"class":3053},[3047,3870,3058],{"class":3057},[3047,3872,3061],{"class":3053},[3047,3874,3065],{"class":3064},[3047,3876,3068],{"class":3053},[3047,3878,3879,3881,3883,3885,3887,3889,3891,3894,3896,3898,3900,3902,3905,3907],{"class":3049,"line":3071},[3047,3880,3075],{"class":3074},[3047,3882,3078],{"class":3074},[3047,3884,3081],{"class":3057},[3047,3886,3084],{"class":3053},[3047,3888,3087],{"class":3057},[3047,3890,3090],{"class":3053},[3047,3892,3893],{"class":3093},"UpdateOrderWithItems",[3047,3895,3061],{"class":3053},[3047,3897,3099],{"class":3074},[3047,3899,3103],{"class":3102},[3047,3901,3106],{"class":3053},[3047,3903,3904],{"class":3057},"OrderUpdateDto",[3047,3906,3112],{"class":3102},[3047,3908,3115],{"class":3053},[3047,3910,3911],{"class":3049,"line":3118},[3047,3912,3121],{"class":3053},[3047,3914,3915],{"class":3049,"line":3124},[3047,3916,3917],{"class":3127},"    // Завантажуємо актуальний стан з УСІМА рядками\n",[3047,3919,3920,3922,3924,3926,3928,3930,3932],{"class":3049,"line":3131},[3047,3921,3134],{"class":3074},[3047,3923,3137],{"class":3102},[3047,3925,3140],{"class":3053},[3047,3927,3143],{"class":3074},[3047,3929,3146],{"class":3102},[3047,3931,3004],{"class":3053},[3047,3933,3151],{"class":3102},[3047,3935,3936,3938,3940,3942,3944,3946,3948,3950,3952],{"class":3049,"line":3154},[3047,3937,3157],{"class":3053},[3047,3939,3160],{"class":3093},[3047,3941,3061],{"class":3053},[3047,3943,3165],{"class":3102},[3047,3945,3168],{"class":3053},[3047,3947,3165],{"class":3102},[3047,3949,3004],{"class":3053},[3047,3951,3175],{"class":3102},[3047,3953,3115],{"class":3053},[3047,3955,3956,3958,3960,3962,3964,3966,3968,3970,3972,3974,3976],{"class":3049,"line":3180},[3047,3957,3157],{"class":3053},[3047,3959,3185],{"class":3093},[3047,3961,3061],{"class":3053},[3047,3963,3165],{"class":3102},[3047,3965,3168],{"class":3053},[3047,3967,3165],{"class":3102},[3047,3969,3004],{"class":3053},[3047,3971,3198],{"class":3102},[3047,3973,3201],{"class":3053},[3047,3975,3204],{"class":3102},[3047,3977,3207],{"class":3053},[3047,3979,3980],{"class":3049,"line":3210},[3047,3981,3214],{"emptyLinePlaceholder":3213},[3047,3983,3984,3986,3988,3990,3992,3994,3996,3998,4000],{"class":3049,"line":3217},[3047,3985,3221],{"class":3220},[3047,3987,3224],{"class":3053},[3047,3989,3227],{"class":3102},[3047,3991,3230],{"class":3074},[3047,3993,3233],{"class":3074},[3047,3995,3236],{"class":3053},[3047,3997,3239],{"class":3220},[3047,3999,3242],{"class":3093},[3047,4001,3245],{"class":3053},[3047,4003,4004],{"class":3049,"line":3248},[3047,4005,3214],{"emptyLinePlaceholder":3213},[3047,4007,4008],{"class":3049,"line":3253},[3047,4009,4010],{"class":3127},"    // Оновлюємо базові поля\n",[3047,4012,4013,4015,4017,4019,4021,4023,4025,4027],{"class":3049,"line":3259},[3047,4014,3262],{"class":3102},[3047,4016,3004],{"class":3053},[3047,4018,3290],{"class":3102},[3047,4020,3140],{"class":3053},[3047,4022,3273],{"class":3102},[3047,4024,3004],{"class":3053},[3047,4026,3290],{"class":3102},[3047,4028,3280],{"class":3053},[3047,4030,4031],{"class":3049,"line":3283},[3047,4032,3214],{"emptyLinePlaceholder":3213},[3047,4034,4035],{"class":3049,"line":3304},[3047,4036,4037],{"class":3127},"    // Знаходимо видалені рядки: є у БД, але немає у dto\n",[3047,4039,4040,4042,4045,4047,4049,4051,4053,4055,4058,4060,4063,4065,4067,4069,4071,4073,4076],{"class":3049,"line":3310},[3047,4041,3134],{"class":3074},[3047,4043,4044],{"class":3102}," dtoItemIds",[3047,4046,3140],{"class":3053},[3047,4048,3273],{"class":3102},[3047,4050,3004],{"class":3053},[3047,4052,3175],{"class":3102},[3047,4054,3004],{"class":3053},[3047,4056,4057],{"class":3093},"Select",[3047,4059,3061],{"class":3053},[3047,4061,4062],{"class":3102},"li",[3047,4064,3168],{"class":3053},[3047,4066,4062],{"class":3102},[3047,4068,3004],{"class":3053},[3047,4070,3198],{"class":3102},[3047,4072,3525],{"class":3053},[3047,4074,4075],{"class":3093},"ToHashSet",[3047,4077,3245],{"class":3053},[3047,4079,4080,4082,4085,4087,4089,4091],{"class":3049,"line":3316},[3047,4081,3134],{"class":3074},[3047,4083,4084],{"class":3102}," itemsToRemove",[3047,4086,3140],{"class":3053},[3047,4088,3227],{"class":3102},[3047,4090,3004],{"class":3053},[3047,4092,4093],{"class":3102},"LineItems\n",[3047,4095,4096,4098,4101,4103,4105,4107,4109,4111,4113,4116,4120,4123,4126,4128,4131,4133,4135,4137,4139],{"class":3049,"line":3321},[3047,4097,3157],{"class":3053},[3047,4099,4100],{"class":3093},"Where",[3047,4102,3061],{"class":3053},[3047,4104,4062],{"class":3102},[3047,4106,3168],{"class":3053},[3047,4108,4062],{"class":3102},[3047,4110,3004],{"class":3053},[3047,4112,3198],{"class":3102},[3047,4114,4115],{"class":3053}," != ",[3047,4117,4119],{"class":4118},"sJj4R","0",[3047,4121,4122],{"class":3053}," && !",[3047,4124,4125],{"class":3102},"dtoItemIds",[3047,4127,3004],{"class":3053},[3047,4129,4130],{"class":3093},"Contains",[3047,4132,3061],{"class":3053},[3047,4134,4062],{"class":3102},[3047,4136,3004],{"class":3053},[3047,4138,3198],{"class":3102},[3047,4140,4141],{"class":3053},"))\n",[3047,4143,4144,4146,4149],{"class":3049,"line":3327},[3047,4145,3157],{"class":3053},[3047,4147,4148],{"class":3093},"ToList",[3047,4150,3245],{"class":3053},[3047,4152,4153],{"class":3049,"line":3342},[3047,4154,3214],{"emptyLinePlaceholder":3213},[3047,4156,4157,4160,4162,4165,4168,4171,4173],{"class":3049,"line":3348},[3047,4158,4159],{"class":3220},"    foreach",[3047,4161,3224],{"class":3053},[3047,4163,4164],{"class":3074},"var",[3047,4166,4167],{"class":3102}," item",[3047,4169,4170],{"class":3220}," in",[3047,4172,4084],{"class":3102},[3047,4174,3115],{"class":3053},[3047,4176,4177,4180,4182,4185,4187,4190,4192,4195],{"class":3049,"line":3353},[3047,4178,4179],{"class":3102},"        context",[3047,4181,3004],{"class":3053},[3047,4183,4184],{"class":3102},"OrderLineItems",[3047,4186,3004],{"class":3053},[3047,4188,4189],{"class":3093},"Remove",[3047,4191,3061],{"class":3053},[3047,4193,4194],{"class":3102},"item",[3047,4196,3207],{"class":3053},[3047,4198,4199],{"class":3049,"line":3364},[3047,4200,3214],{"emptyLinePlaceholder":3213},[3047,4202,4204],{"class":3049,"line":4203},23,[3047,4205,4206],{"class":3127},"    // Оновлюємо існуючі та додаємо нові\n",[3047,4208,4210,4212,4214,4216,4219,4221,4223,4225,4227],{"class":3049,"line":4209},24,[3047,4211,4159],{"class":3220},[3047,4213,3224],{"class":3053},[3047,4215,4164],{"class":3074},[3047,4217,4218],{"class":3102}," dtoItem",[3047,4220,4170],{"class":3220},[3047,4222,3112],{"class":3102},[3047,4224,3004],{"class":3053},[3047,4226,3175],{"class":3102},[3047,4228,3115],{"class":3053},[3047,4230,4232],{"class":3049,"line":4231},25,[3047,4233,3570],{"class":3053},[3047,4235,4237,4240,4243,4245,4247,4249,4251,4253,4256,4258,4260,4262,4264,4266,4268,4270,4273,4275,4277],{"class":3049,"line":4236},26,[3047,4238,4239],{"class":3074},"        var",[3047,4241,4242],{"class":3102}," existing",[3047,4244,3140],{"class":3053},[3047,4246,3227],{"class":3102},[3047,4248,3004],{"class":3053},[3047,4250,3175],{"class":3102},[3047,4252,3004],{"class":3053},[3047,4254,4255],{"class":3093},"FirstOrDefault",[3047,4257,3061],{"class":3053},[3047,4259,4062],{"class":3102},[3047,4261,3168],{"class":3053},[3047,4263,4062],{"class":3102},[3047,4265,3004],{"class":3053},[3047,4267,3198],{"class":3102},[3047,4269,3201],{"class":3053},[3047,4271,4272],{"class":3102},"dtoItem",[3047,4274,3004],{"class":3053},[3047,4276,3198],{"class":3102},[3047,4278,3207],{"class":3053},[3047,4280,4282],{"class":3049,"line":4281},27,[3047,4283,3214],{"emptyLinePlaceholder":3213},[3047,4285,4287,4290,4292,4295,4297,4300,4302],{"class":3049,"line":4286},28,[3047,4288,4289],{"class":3220},"        if",[3047,4291,3224],{"class":3053},[3047,4293,4294],{"class":3102},"existing",[3047,4296,3230],{"class":3074},[3047,4298,4299],{"class":3074}," not",[3047,4301,3233],{"class":3074},[3047,4303,3115],{"class":3053},[3047,4305,4307],{"class":3049,"line":4306},29,[3047,4308,4309],{"class":3053},"        {\n",[3047,4311,4313],{"class":3049,"line":4312},30,[3047,4314,4315],{"class":3127},"            // Існуючий: оновлюємо поля\n",[3047,4317,4319,4322,4324,4327,4329,4331,4333,4335],{"class":3049,"line":4318},31,[3047,4320,4321],{"class":3102},"            existing",[3047,4323,3004],{"class":3053},[3047,4325,4326],{"class":3102},"Quantity",[3047,4328,3270],{"class":3053},[3047,4330,4272],{"class":3102},[3047,4332,3004],{"class":3053},[3047,4334,4326],{"class":3102},[3047,4336,3280],{"class":3053},[3047,4338,4340,4342,4344,4347,4349,4351,4353,4355],{"class":3049,"line":4339},32,[3047,4341,4321],{"class":3102},[3047,4343,3004],{"class":3053},[3047,4345,4346],{"class":3102},"UnitPrice",[3047,4348,3140],{"class":3053},[3047,4350,4272],{"class":3102},[3047,4352,3004],{"class":3053},[3047,4354,4346],{"class":3102},[3047,4356,3280],{"class":3053},[3047,4358,4360],{"class":3049,"line":4359},33,[3047,4361,4362],{"class":3053},"        }\n",[3047,4364,4366],{"class":3049,"line":4365},34,[3047,4367,4368],{"class":3220},"        else\n",[3047,4370,4372],{"class":3049,"line":4371},35,[3047,4373,4309],{"class":3053},[3047,4375,4377],{"class":3049,"line":4376},36,[3047,4378,4379],{"class":3127},"            // Новий: додаємо до колекції\n",[3047,4381,4383,4386,4388,4390,4392,4395,4397,4399],{"class":3049,"line":4382},37,[3047,4384,4385],{"class":3102},"            order",[3047,4387,3004],{"class":3053},[3047,4389,3175],{"class":3102},[3047,4391,3004],{"class":3053},[3047,4393,4394],{"class":3093},"Add",[3047,4396,3061],{"class":3053},[3047,4398,3456],{"class":3074},[3047,4400,4401],{"class":3057}," OrderLineItem\n",[3047,4403,4405],{"class":3049,"line":4404},38,[3047,4406,4407],{"class":3053},"            {\n",[3047,4409,4411,4414,4416,4418,4420,4423],{"class":3049,"line":4410},39,[3047,4412,4413],{"class":3102},"                ProductId",[3047,4415,3270],{"class":3053},[3047,4417,4272],{"class":3102},[3047,4419,3004],{"class":3053},[3047,4421,4422],{"class":3102},"ProductId",[3047,4424,4425],{"class":3053},",\n",[3047,4427,4429,4432,4434,4436,4438,4440],{"class":3049,"line":4428},40,[3047,4430,4431],{"class":3102},"                Quantity",[3047,4433,3293],{"class":3053},[3047,4435,4272],{"class":3102},[3047,4437,3004],{"class":3053},[3047,4439,4326],{"class":3102},[3047,4441,4425],{"class":3053},[3047,4443,4445,4448,4450,4452,4454],{"class":3049,"line":4444},41,[3047,4446,4447],{"class":3102},"                UnitPrice",[3047,4449,3270],{"class":3053},[3047,4451,4272],{"class":3102},[3047,4453,3004],{"class":3053},[3047,4455,4456],{"class":3102},"UnitPrice\n",[3047,4458,4460],{"class":3049,"line":4459},42,[3047,4461,4462],{"class":3053},"            });\n",[3047,4464,4466],{"class":3049,"line":4465},43,[3047,4467,4362],{"class":3053},[3047,4469,4471],{"class":3049,"line":4470},44,[3047,4472,3593],{"class":3053},[3047,4474,4476],{"class":3049,"line":4475},45,[3047,4477,3214],{"emptyLinePlaceholder":3213},[3047,4479,4481,4483,4485,4487,4489],{"class":3049,"line":4480},46,[3047,4482,3330],{"class":3074},[3047,4484,3146],{"class":3102},[3047,4486,3004],{"class":3053},[3047,4488,3337],{"class":3093},[3047,4490,3245],{"class":3053},[3047,4492,4494],{"class":3049,"line":4493},47,[3047,4495,4496],{"class":3127},"    // DELETE де потрібно, UPDATE де треба, INSERT для нових\n",[3047,4498,4500,4502,4504],{"class":3049,"line":4499},48,[3047,4501,3356],{"class":3220},[3047,4503,3359],{"class":3093},[3047,4505,3245],{"class":3053},[3047,4507,4509],{"class":3049,"line":4508},49,[3047,4510,3367],{"class":3053},[2973,4512],{},[2976,4514,4516],{"id":4515},"проблема-подвійного-трекування","Проблема «подвійного трекування»",[2963,4518,4519],{},"Одна з найпоширеніших помилок з ChangeTracker — спроба приєднати entity що вже відстежується:",[3013,4521,4523],{"className":3041,"code":4522,"language":3043,"meta":3021,"style":3021},"// ПОМИЛКА: спроба прикріпити entity що вже трекується\nvar product1 = await context.Products.FindAsync(42); // Tracked: Id=42\n\nvar product2 = new Product { Id = 42, Name = \"Updated\" };\ncontext.Products.Update(product2);\n// InvalidOperationException: Cannot track entity because another instance\n// with the same key value is already being tracked.\n\n// Або:\ncontext.Products.Attach(product2);\n// Та сама помилка!\n",[3001,4524,4525,4530,4563,4567,4601,4621,4626,4631,4635,4640,4658],{"__ignoreMap":3021},[3047,4526,4527],{"class":3049,"line":3050},[3047,4528,4529],{"class":3127},"// ПОМИЛКА: спроба прикріпити entity що вже трекується\n",[3047,4531,4532,4534,4537,4539,4541,4543,4545,4548,4550,4553,4555,4558,4560],{"class":3049,"line":3071},[3047,4533,4164],{"class":3074},[3047,4535,4536],{"class":3102}," product1",[3047,4538,3140],{"class":3053},[3047,4540,3143],{"class":3074},[3047,4542,3146],{"class":3102},[3047,4544,3004],{"class":3053},[3047,4546,4547],{"class":3102},"Products",[3047,4549,3004],{"class":3053},[3047,4551,4552],{"class":3093},"FindAsync",[3047,4554,3061],{"class":3053},[3047,4556,4557],{"class":4118},"42",[3047,4559,3741],{"class":3053},[3047,4561,4562],{"class":3127},"// Tracked: Id=42\n",[3047,4564,4565],{"class":3049,"line":3118},[3047,4566,3214],{"emptyLinePlaceholder":3213},[3047,4568,4569,4571,4574,4576,4578,4581,4583,4585,4587,4589,4591,4594,4596,4599],{"class":3049,"line":3124},[3047,4570,4164],{"class":3074},[3047,4572,4573],{"class":3102}," product2",[3047,4575,3140],{"class":3053},[3047,4577,3456],{"class":3074},[3047,4579,4580],{"class":3057}," Product",[3047,4582,3462],{"class":3053},[3047,4584,3198],{"class":3102},[3047,4586,3140],{"class":3053},[3047,4588,4557],{"class":4118},[3047,4590,3106],{"class":3053},[3047,4592,4593],{"class":3102},"Name",[3047,4595,3140],{"class":3053},[3047,4597,4598],{"class":3064},"\"Updated\"",[3047,4600,3480],{"class":3053},[3047,4602,4603,4606,4608,4610,4612,4614,4616,4619],{"class":3049,"line":3131},[3047,4604,4605],{"class":3102},"context",[3047,4607,3004],{"class":3053},[3047,4609,4547],{"class":3102},[3047,4611,3004],{"class":3053},[3047,4613,3775],{"class":3093},[3047,4615,3061],{"class":3053},[3047,4617,4618],{"class":3102},"product2",[3047,4620,3207],{"class":3053},[3047,4622,4623],{"class":3049,"line":3154},[3047,4624,4625],{"class":3127},"// InvalidOperationException: Cannot track entity because another instance\n",[3047,4627,4628],{"class":3049,"line":3180},[3047,4629,4630],{"class":3127},"// with the same key value is already being tracked.\n",[3047,4632,4633],{"class":3049,"line":3210},[3047,4634,3214],{"emptyLinePlaceholder":3213},[3047,4636,4637],{"class":3049,"line":3217},[3047,4638,4639],{"class":3127},"// Або:\n",[3047,4641,4642,4644,4646,4648,4650,4652,4654,4656],{"class":3049,"line":3248},[3047,4643,4605],{"class":3102},[3047,4645,3004],{"class":3053},[3047,4647,4547],{"class":3102},[3047,4649,3004],{"class":3053},[3047,4651,3499],{"class":3093},[3047,4653,3061],{"class":3053},[3047,4655,4618],{"class":3102},[3047,4657,3207],{"class":3053},[3047,4659,4660],{"class":3049,"line":3253},[3047,4661,4662],{"class":3127},"// Та сама помилка!\n",[2963,4664,4665,4668],{},[2986,4666,4667],{},"Причина",": Identity Map не допускає двох різних C#-об'єктів з однаковим PK у трекері одночасно.",[3032,4670,4672],{"id":4671},"вирішення-a-не-завантажувати-якщо-збираєтесь-attachupdate","Вирішення A: Не завантажувати якщо збираєтесь Attach/Update",[3013,4674,4676],{"className":3041,"code":4675,"language":3043,"meta":3021,"style":3021},"// Якщо відомо що entity може бути вже в трекері — перевіряємо:\nvar tracked = context.ChangeTracker.Entries\u003CProduct>()\n    .FirstOrDefault(e => e.Entity.Id == 42);\n\nif (tracked is not null)\n{\n    // Оновлюємо через існуючий Entry\n    tracked.CurrentValues.SetValues(updatedProduct);\n}\nelse\n{\n    // Безпечно прикріпляємо\n    context.Products.Update(updatedProduct);\n}\n",[3001,4677,4678,4683,4712,4743,4747,4765,4769,4774,4796,4800,4805,4809,4814,4832],{"__ignoreMap":3021},[3047,4679,4680],{"class":3049,"line":3050},[3047,4681,4682],{"class":3127},"// Якщо відомо що entity може бути вже в трекері — перевіряємо:\n",[3047,4684,4685,4687,4690,4692,4694,4696,4699,4701,4704,4706,4709],{"class":3049,"line":3071},[3047,4686,4164],{"class":3074},[3047,4688,4689],{"class":3102}," tracked",[3047,4691,3140],{"class":3053},[3047,4693,4605],{"class":3102},[3047,4695,3004],{"class":3053},[3047,4697,4698],{"class":3102},"ChangeTracker",[3047,4700,3004],{"class":3053},[3047,4702,4703],{"class":3093},"Entries",[3047,4705,3084],{"class":3053},[3047,4707,4708],{"class":3057},"Product",[3047,4710,4711],{"class":3053},">()\n",[3047,4713,4714,4717,4719,4721,4724,4726,4728,4730,4733,4735,4737,4739,4741],{"class":3049,"line":3118},[3047,4715,4716],{"class":3053},"    .",[3047,4718,4255],{"class":3093},[3047,4720,3061],{"class":3053},[3047,4722,4723],{"class":3102},"e",[3047,4725,3168],{"class":3053},[3047,4727,4723],{"class":3102},[3047,4729,3004],{"class":3053},[3047,4731,4732],{"class":3102},"Entity",[3047,4734,3004],{"class":3053},[3047,4736,3198],{"class":3102},[3047,4738,3201],{"class":3053},[3047,4740,4557],{"class":4118},[3047,4742,3207],{"class":3053},[3047,4744,4745],{"class":3049,"line":3124},[3047,4746,3214],{"emptyLinePlaceholder":3213},[3047,4748,4749,4752,4754,4757,4759,4761,4763],{"class":3049,"line":3131},[3047,4750,4751],{"class":3220},"if",[3047,4753,3224],{"class":3053},[3047,4755,4756],{"class":3102},"tracked",[3047,4758,3230],{"class":3074},[3047,4760,4299],{"class":3074},[3047,4762,3233],{"class":3074},[3047,4764,3115],{"class":3053},[3047,4766,4767],{"class":3049,"line":3154},[3047,4768,3121],{"class":3053},[3047,4770,4771],{"class":3049,"line":3180},[3047,4772,4773],{"class":3127},"    // Оновлюємо через існуючий Entry\n",[3047,4775,4776,4779,4781,4784,4786,4789,4791,4794],{"class":3049,"line":3210},[3047,4777,4778],{"class":3102},"    tracked",[3047,4780,3004],{"class":3053},[3047,4782,4783],{"class":3102},"CurrentValues",[3047,4785,3004],{"class":3053},[3047,4787,4788],{"class":3093},"SetValues",[3047,4790,3061],{"class":3053},[3047,4792,4793],{"class":3102},"updatedProduct",[3047,4795,3207],{"class":3053},[3047,4797,4798],{"class":3049,"line":3217},[3047,4799,3367],{"class":3053},[3047,4801,4802],{"class":3049,"line":3248},[3047,4803,4804],{"class":3220},"else\n",[3047,4806,4807],{"class":3049,"line":3253},[3047,4808,3121],{"class":3053},[3047,4810,4811],{"class":3049,"line":3259},[3047,4812,4813],{"class":3127},"    // Безпечно прикріпляємо\n",[3047,4815,4816,4818,4820,4822,4824,4826,4828,4830],{"class":3049,"line":3283},[3047,4817,3489],{"class":3102},[3047,4819,3004],{"class":3053},[3047,4821,4547],{"class":3102},[3047,4823,3004],{"class":3053},[3047,4825,3775],{"class":3093},[3047,4827,3061],{"class":3053},[3047,4829,4793],{"class":3102},[3047,4831,3207],{"class":3053},[3047,4833,4834],{"class":3049,"line":3304},[3047,4835,3367],{"class":3053},[3032,4837,4839],{"id":4838},"вирішення-b-очистити-трекер-перед-attach","Вирішення B: Очистити трекер перед Attach",[3013,4841,4843],{"className":3041,"code":4842,"language":3043,"meta":3021,"style":3021},"// У деяких сценаріях — відключити всі entity\ncontext.ChangeTracker.Clear();\n\n// Тепер безпечно\ncontext.Products.Update(product2);\n",[3001,4844,4845,4850,4865,4869,4874],{"__ignoreMap":3021},[3047,4846,4847],{"class":3049,"line":3050},[3047,4848,4849],{"class":3127},"// У деяких сценаріях — відключити всі entity\n",[3047,4851,4852,4854,4856,4858,4860,4863],{"class":3049,"line":3071},[3047,4853,4605],{"class":3102},[3047,4855,3004],{"class":3053},[3047,4857,4698],{"class":3102},[3047,4859,3004],{"class":3053},[3047,4861,4862],{"class":3093},"Clear",[3047,4864,3245],{"class":3053},[3047,4866,4867],{"class":3049,"line":3118},[3047,4868,3214],{"emptyLinePlaceholder":3213},[3047,4870,4871],{"class":3049,"line":3124},[3047,4872,4873],{"class":3127},"// Тепер безпечно\n",[3047,4875,4876,4878,4880,4882,4884,4886,4888,4890],{"class":3049,"line":3131},[3047,4877,4605],{"class":3102},[3047,4879,3004],{"class":3053},[3047,4881,4547],{"class":3102},[3047,4883,3004],{"class":3053},[3047,4885,3775],{"class":3093},[3047,4887,3061],{"class":3053},[3047,4889,4618],{"class":3102},[3047,4891,3207],{"class":3053},[3032,4893,4895,4896],{"id":4894},"вирішення-c-використати-setvalues","Вирішення C: Використати ",[3001,4897,4788],{},[3013,4899,4901],{"className":3041,"code":4900,"language":3043,"meta":3021,"style":3021},"// Завантажуємо і оновлюємо через CurrentValues.SetValues:\nvar existing = await context.Products.FindAsync(42);\n\nif (existing is not null)\n{\n    // Копіюємо всі значення з updatedProduct в existing\n    context.Entry(existing).CurrentValues.SetValues(updatedProduct);\n    // Мінімальний UPDATE: лише фактично змінені поля\n    await context.SaveChanges();\n}\n",[3001,4902,4903,4908,4934,4938,4954,4958,4963,4989,4994,5006],{"__ignoreMap":3021},[3047,4904,4905],{"class":3049,"line":3050},[3047,4906,4907],{"class":3127},"// Завантажуємо і оновлюємо через CurrentValues.SetValues:\n",[3047,4909,4910,4912,4914,4916,4918,4920,4922,4924,4926,4928,4930,4932],{"class":3049,"line":3071},[3047,4911,4164],{"class":3074},[3047,4913,4242],{"class":3102},[3047,4915,3140],{"class":3053},[3047,4917,3143],{"class":3074},[3047,4919,3146],{"class":3102},[3047,4921,3004],{"class":3053},[3047,4923,4547],{"class":3102},[3047,4925,3004],{"class":3053},[3047,4927,4552],{"class":3093},[3047,4929,3061],{"class":3053},[3047,4931,4557],{"class":4118},[3047,4933,3207],{"class":3053},[3047,4935,4936],{"class":3049,"line":3118},[3047,4937,3214],{"emptyLinePlaceholder":3213},[3047,4939,4940,4942,4944,4946,4948,4950,4952],{"class":3049,"line":3124},[3047,4941,4751],{"class":3220},[3047,4943,3224],{"class":3053},[3047,4945,4294],{"class":3102},[3047,4947,3230],{"class":3074},[3047,4949,4299],{"class":3074},[3047,4951,3233],{"class":3074},[3047,4953,3115],{"class":3053},[3047,4955,4956],{"class":3049,"line":3131},[3047,4957,3121],{"class":3053},[3047,4959,4960],{"class":3049,"line":3154},[3047,4961,4962],{"class":3127},"    // Копіюємо всі значення з updatedProduct в existing\n",[3047,4964,4965,4967,4969,4971,4973,4975,4977,4979,4981,4983,4985,4987],{"class":3049,"line":3180},[3047,4966,3489],{"class":3102},[3047,4968,3004],{"class":3053},[3047,4970,3518],{"class":3093},[3047,4972,3061],{"class":3053},[3047,4974,4294],{"class":3102},[3047,4976,3525],{"class":3053},[3047,4978,4783],{"class":3102},[3047,4980,3004],{"class":3053},[3047,4982,4788],{"class":3093},[3047,4984,3061],{"class":3053},[3047,4986,4793],{"class":3102},[3047,4988,3207],{"class":3053},[3047,4990,4991],{"class":3049,"line":3210},[3047,4992,4993],{"class":3127},"    // Мінімальний UPDATE: лише фактично змінені поля\n",[3047,4995,4996,4998,5000,5002,5004],{"class":3049,"line":3217},[3047,4997,3330],{"class":3074},[3047,4999,3146],{"class":3102},[3047,5001,3004],{"class":3053},[3047,5003,3337],{"class":3093},[3047,5005,3245],{"class":3053},[3047,5007,5008],{"class":3049,"line":3248},[3047,5009,3367],{"class":3053},[2963,5011,5012,5015,5016,5019],{},[3001,5013,5014],{},"SetValues(obj)"," копіює всі однойменні властивості з ",[3001,5017,5018],{},"obj"," в поточний tracked entity і Change Tracker автоматично виявляє яке змінилось.",[2973,5021],{},[2976,5023,5025],{"id":5024},"перевантаження-savechangesasync-для-автоматичного-аудиту","Перевантаження SaveChangesAsync для автоматичного аудиту",[2963,5027,5028,5029,5032],{},"Один з найкращих прикладів використання Change Tracker — автоматичний audit timestamp у ",[3001,5030,5031],{},"SaveChangesAsync"," override:",[3013,5034,5036],{"className":3041,"code":5035,"language":3043,"meta":3021,"style":3021},"public class AppDbContext : DbContext\n{\n    private readonly ICurrentUserService _currentUser;\n\n    public AppDbContext(DbContextOptions\u003CAppDbContext> options,\n                        ICurrentUserService currentUser)\n        : base(options)\n    {\n        _currentUser = currentUser;\n    }\n\n    public override async Task\u003Cint> SaveChangesAsync(\n        CancellationToken cancellationToken = default)\n    {\n        // Перед збереженням — автоматично заповнюємо аудит-поля\n        ApplyAuditFields();\n\n        return await base.SaveChangesAsync(cancellationToken);\n    }\n\n    private void ApplyAuditFields()\n    {\n        var now    = DateTime.UtcNow;\n        var userId = _currentUser.GetUserId();\n\n        foreach (var entry in ChangeTracker.Entries\u003CIAuditableEntity>())\n        {\n            switch (entry.State)\n            {\n                case EntityState.Added:\n                    entry.Entity.CreatedAt  = now;\n                    entry.Entity.CreatedBy  = userId;\n                    entry.Entity.UpdatedAt  = now;\n                    entry.Entity.UpdatedBy  = userId;\n                    break;\n\n                case EntityState.Modified:\n                    // Не перезаписуємо CreatedAt/By при оновленні!\n                    entry.Property(e => e.CreatedAt).IsModified = false;\n                    entry.Property(e => e.CreatedBy).IsModified = false;\n                    entry.Entity.UpdatedAt = now;\n                    entry.Entity.UpdatedBy = userId;\n                    break;\n            }\n        }\n    }\n}\n\npublic interface IAuditableEntity\n{\n    DateTime  CreatedAt { get; set; }\n    string?   CreatedBy { get; set; }\n    DateTime  UpdatedAt { get; set; }\n    string?   UpdatedBy { get; set; }\n}\n",[3001,5037,5038,5054,5058,5074,5078,5102,5112,5126,5130,5142,5146,5150,5172,5187,5191,5196,5203,5207,5228,5232,5236,5249,5253,5273,5292,5296,5325,5329,5346,5350,5366,5386,5406,5425,5444,5451,5455,5468,5473,5504,5534,5552,5570,5576,5581,5585,5589,5593,5597,5607,5612,5635,5656,5674,5693],{"__ignoreMap":3021},[3047,5039,5040,5042,5045,5048,5051],{"class":3049,"line":3050},[3047,5041,3075],{"class":3074},[3047,5043,5044],{"class":3074}," class",[3047,5046,5047],{"class":3057}," AppDbContext",[3047,5049,5050],{"class":3053}," : ",[3047,5052,5053],{"class":3057},"DbContext\n",[3047,5055,5056],{"class":3049,"line":3071},[3047,5057,3121],{"class":3053},[3047,5059,5060,5063,5066,5069,5072],{"class":3049,"line":3118},[3047,5061,5062],{"class":3074},"    private",[3047,5064,5065],{"class":3074}," readonly",[3047,5067,5068],{"class":3057}," ICurrentUserService",[3047,5070,5071],{"class":3102}," _currentUser",[3047,5073,3280],{"class":3053},[3047,5075,5076],{"class":3049,"line":3124},[3047,5077,3214],{"emptyLinePlaceholder":3213},[3047,5079,5080,5083,5085,5087,5090,5092,5095,5097,5100],{"class":3049,"line":3131},[3047,5081,5082],{"class":3074},"    public",[3047,5084,5047],{"class":3093},[3047,5086,3061],{"class":3053},[3047,5088,5089],{"class":3057},"DbContextOptions",[3047,5091,3084],{"class":3053},[3047,5093,5094],{"class":3057},"AppDbContext",[3047,5096,3090],{"class":3053},[3047,5098,5099],{"class":3102},"options",[3047,5101,4425],{"class":3053},[3047,5103,5104,5107,5110],{"class":3049,"line":3154},[3047,5105,5106],{"class":3057},"                        ICurrentUserService",[3047,5108,5109],{"class":3102}," currentUser",[3047,5111,3115],{"class":3053},[3047,5113,5114,5117,5120,5122,5124],{"class":3049,"line":3180},[3047,5115,5116],{"class":3053},"        : ",[3047,5118,5119],{"class":3074},"base",[3047,5121,3061],{"class":3053},[3047,5123,5099],{"class":3102},[3047,5125,3115],{"class":3053},[3047,5127,5128],{"class":3049,"line":3210},[3047,5129,3570],{"class":3053},[3047,5131,5132,5135,5137,5140],{"class":3049,"line":3217},[3047,5133,5134],{"class":3102},"        _currentUser",[3047,5136,3140],{"class":3053},[3047,5138,5139],{"class":3102},"currentUser",[3047,5141,3280],{"class":3053},[3047,5143,5144],{"class":3049,"line":3248},[3047,5145,3593],{"class":3053},[3047,5147,5148],{"class":3049,"line":3253},[3047,5149,3214],{"emptyLinePlaceholder":3213},[3047,5151,5152,5154,5157,5159,5161,5163,5165,5167,5169],{"class":3049,"line":3259},[3047,5153,5082],{"class":3074},[3047,5155,5156],{"class":3074}," override",[3047,5158,3078],{"class":3074},[3047,5160,3081],{"class":3057},[3047,5162,3084],{"class":3053},[3047,5164,3099],{"class":3074},[3047,5166,3090],{"class":3053},[3047,5168,5031],{"class":3093},[3047,5170,5171],{"class":3053},"(\n",[3047,5173,5174,5177,5180,5182,5185],{"class":3049,"line":3283},[3047,5175,5176],{"class":3057},"        CancellationToken",[3047,5178,5179],{"class":3102}," cancellationToken",[3047,5181,3140],{"class":3053},[3047,5183,5184],{"class":3074},"default",[3047,5186,3115],{"class":3053},[3047,5188,5189],{"class":3049,"line":3304},[3047,5190,3570],{"class":3053},[3047,5192,5193],{"class":3049,"line":3310},[3047,5194,5195],{"class":3127},"        // Перед збереженням — автоматично заповнюємо аудит-поля\n",[3047,5197,5198,5201],{"class":3049,"line":3316},[3047,5199,5200],{"class":3093},"        ApplyAuditFields",[3047,5202,3245],{"class":3053},[3047,5204,5205],{"class":3049,"line":3321},[3047,5206,3214],{"emptyLinePlaceholder":3213},[3047,5208,5209,5211,5214,5217,5219,5221,5223,5226],{"class":3049,"line":3327},[3047,5210,3614],{"class":3220},[3047,5212,5213],{"class":3074}," await",[3047,5215,5216],{"class":3074}," base",[3047,5218,3004],{"class":3053},[3047,5220,5031],{"class":3093},[3047,5222,3061],{"class":3053},[3047,5224,5225],{"class":3102},"cancellationToken",[3047,5227,3207],{"class":3053},[3047,5229,5230],{"class":3049,"line":3342},[3047,5231,3593],{"class":3053},[3047,5233,5234],{"class":3049,"line":3348},[3047,5235,3214],{"emptyLinePlaceholder":3213},[3047,5237,5238,5240,5243,5246],{"class":3049,"line":3353},[3047,5239,5062],{"class":3074},[3047,5241,5242],{"class":3074}," void",[3047,5244,5245],{"class":3093}," ApplyAuditFields",[3047,5247,5248],{"class":3053},"()\n",[3047,5250,5251],{"class":3049,"line":3364},[3047,5252,3570],{"class":3053},[3047,5254,5255,5257,5260,5263,5266,5268,5271],{"class":3049,"line":4203},[3047,5256,4239],{"class":3074},[3047,5258,5259],{"class":3102}," now",[3047,5261,5262],{"class":3053},"    = ",[3047,5264,5265],{"class":3102},"DateTime",[3047,5267,3004],{"class":3053},[3047,5269,5270],{"class":3102},"UtcNow",[3047,5272,3280],{"class":3053},[3047,5274,5275,5277,5280,5282,5285,5287,5290],{"class":3049,"line":4209},[3047,5276,4239],{"class":3074},[3047,5278,5279],{"class":3102}," userId",[3047,5281,3140],{"class":3053},[3047,5283,5284],{"class":3102},"_currentUser",[3047,5286,3004],{"class":3053},[3047,5288,5289],{"class":3093},"GetUserId",[3047,5291,3245],{"class":3053},[3047,5293,5294],{"class":3049,"line":4231},[3047,5295,3214],{"emptyLinePlaceholder":3213},[3047,5297,5298,5301,5303,5305,5308,5310,5313,5315,5317,5319,5322],{"class":3049,"line":4236},[3047,5299,5300],{"class":3220},"        foreach",[3047,5302,3224],{"class":3053},[3047,5304,4164],{"class":3074},[3047,5306,5307],{"class":3102}," entry",[3047,5309,4170],{"class":3220},[3047,5311,5312],{"class":3102}," ChangeTracker",[3047,5314,3004],{"class":3053},[3047,5316,4703],{"class":3093},[3047,5318,3084],{"class":3053},[3047,5320,5321],{"class":3057},"IAuditableEntity",[3047,5323,5324],{"class":3053},">())\n",[3047,5326,5327],{"class":3049,"line":4281},[3047,5328,4309],{"class":3053},[3047,5330,5331,5334,5336,5339,5341,5344],{"class":3049,"line":4286},[3047,5332,5333],{"class":3220},"            switch",[3047,5335,3224],{"class":3053},[3047,5337,5338],{"class":3102},"entry",[3047,5340,3004],{"class":3053},[3047,5342,5343],{"class":3102},"State",[3047,5345,3115],{"class":3053},[3047,5347,5348],{"class":3049,"line":4306},[3047,5349,4407],{"class":3053},[3047,5351,5352,5355,5358,5360,5363],{"class":3049,"line":4312},[3047,5353,5354],{"class":3220},"                case",[3047,5356,5357],{"class":3057}," EntityState",[3047,5359,3004],{"class":3053},[3047,5361,5362],{"class":3057},"Added",[3047,5364,5365],{"class":3053},":\n",[3047,5367,5368,5371,5373,5375,5377,5379,5381,5384],{"class":3049,"line":4318},[3047,5369,5370],{"class":3102},"                    entry",[3047,5372,3004],{"class":3053},[3047,5374,4732],{"class":3102},[3047,5376,3004],{"class":3053},[3047,5378,3822],{"class":3102},[3047,5380,3270],{"class":3053},[3047,5382,5383],{"class":3102},"now",[3047,5385,3280],{"class":3053},[3047,5387,5388,5390,5392,5394,5396,5399,5401,5404],{"class":3049,"line":4339},[3047,5389,5370],{"class":3102},[3047,5391,3004],{"class":3053},[3047,5393,4732],{"class":3102},[3047,5395,3004],{"class":3053},[3047,5397,5398],{"class":3102},"CreatedBy",[3047,5400,3270],{"class":3053},[3047,5402,5403],{"class":3102},"userId",[3047,5405,3280],{"class":3053},[3047,5407,5408,5410,5412,5414,5416,5419,5421,5423],{"class":3049,"line":4359},[3047,5409,5370],{"class":3102},[3047,5411,3004],{"class":3053},[3047,5413,4732],{"class":3102},[3047,5415,3004],{"class":3053},[3047,5417,5418],{"class":3102},"UpdatedAt",[3047,5420,3270],{"class":3053},[3047,5422,5383],{"class":3102},[3047,5424,3280],{"class":3053},[3047,5426,5427,5429,5431,5433,5435,5438,5440,5442],{"class":3049,"line":4365},[3047,5428,5370],{"class":3102},[3047,5430,3004],{"class":3053},[3047,5432,4732],{"class":3102},[3047,5434,3004],{"class":3053},[3047,5436,5437],{"class":3102},"UpdatedBy",[3047,5439,3270],{"class":3053},[3047,5441,5403],{"class":3102},[3047,5443,3280],{"class":3053},[3047,5445,5446,5449],{"class":3049,"line":4371},[3047,5447,5448],{"class":3220},"                    break",[3047,5450,3280],{"class":3053},[3047,5452,5453],{"class":3049,"line":4376},[3047,5454,3214],{"emptyLinePlaceholder":3213},[3047,5456,5457,5459,5461,5463,5466],{"class":3049,"line":4382},[3047,5458,5354],{"class":3220},[3047,5460,5357],{"class":3057},[3047,5462,3004],{"class":3053},[3047,5464,5465],{"class":3057},"Modified",[3047,5467,5365],{"class":3053},[3047,5469,5470],{"class":3049,"line":4404},[3047,5471,5472],{"class":3127},"                    // Не перезаписуємо CreatedAt/By при оновленні!\n",[3047,5474,5475,5477,5479,5481,5483,5485,5487,5489,5491,5493,5495,5497,5499,5502],{"class":3049,"line":4410},[3047,5476,5370],{"class":3102},[3047,5478,3004],{"class":3053},[3047,5480,3528],{"class":3093},[3047,5482,3061],{"class":3053},[3047,5484,4723],{"class":3102},[3047,5486,3168],{"class":3053},[3047,5488,4723],{"class":3102},[3047,5490,3004],{"class":3053},[3047,5492,3822],{"class":3102},[3047,5494,3525],{"class":3053},[3047,5496,3545],{"class":3102},[3047,5498,3140],{"class":3053},[3047,5500,5501],{"class":3074},"false",[3047,5503,3280],{"class":3053},[3047,5505,5506,5508,5510,5512,5514,5516,5518,5520,5522,5524,5526,5528,5530,5532],{"class":3049,"line":4428},[3047,5507,5370],{"class":3102},[3047,5509,3004],{"class":3053},[3047,5511,3528],{"class":3093},[3047,5513,3061],{"class":3053},[3047,5515,4723],{"class":3102},[3047,5517,3168],{"class":3053},[3047,5519,4723],{"class":3102},[3047,5521,3004],{"class":3053},[3047,5523,5398],{"class":3102},[3047,5525,3525],{"class":3053},[3047,5527,3545],{"class":3102},[3047,5529,3140],{"class":3053},[3047,5531,5501],{"class":3074},[3047,5533,3280],{"class":3053},[3047,5535,5536,5538,5540,5542,5544,5546,5548,5550],{"class":3049,"line":4444},[3047,5537,5370],{"class":3102},[3047,5539,3004],{"class":3053},[3047,5541,4732],{"class":3102},[3047,5543,3004],{"class":3053},[3047,5545,5418],{"class":3102},[3047,5547,3140],{"class":3053},[3047,5549,5383],{"class":3102},[3047,5551,3280],{"class":3053},[3047,5553,5554,5556,5558,5560,5562,5564,5566,5568],{"class":3049,"line":4459},[3047,5555,5370],{"class":3102},[3047,5557,3004],{"class":3053},[3047,5559,4732],{"class":3102},[3047,5561,3004],{"class":3053},[3047,5563,5437],{"class":3102},[3047,5565,3140],{"class":3053},[3047,5567,5403],{"class":3102},[3047,5569,3280],{"class":3053},[3047,5571,5572,5574],{"class":3049,"line":4465},[3047,5573,5448],{"class":3220},[3047,5575,3280],{"class":3053},[3047,5577,5578],{"class":3049,"line":4470},[3047,5579,5580],{"class":3053},"            }\n",[3047,5582,5583],{"class":3049,"line":4475},[3047,5584,4362],{"class":3053},[3047,5586,5587],{"class":3049,"line":4480},[3047,5588,3593],{"class":3053},[3047,5590,5591],{"class":3049,"line":4493},[3047,5592,3367],{"class":3053},[3047,5594,5595],{"class":3049,"line":4499},[3047,5596,3214],{"emptyLinePlaceholder":3213},[3047,5598,5599,5601,5604],{"class":3049,"line":4508},[3047,5600,3075],{"class":3074},[3047,5602,5603],{"class":3074}," interface",[3047,5605,5606],{"class":3057}," IAuditableEntity\n",[3047,5608,5610],{"class":3049,"line":5609},50,[3047,5611,3121],{"class":3053},[3047,5613,5615,5618,5621,5623,5626,5629,5632],{"class":3049,"line":5614},51,[3047,5616,5617],{"class":3057},"    DateTime",[3047,5619,5620],{"class":3102},"  CreatedAt",[3047,5622,3462],{"class":3053},[3047,5624,5625],{"class":3074},"get",[3047,5627,5628],{"class":3053},"; ",[3047,5630,5631],{"class":3074},"set",[3047,5633,5634],{"class":3053},"; }\n",[3047,5636,5638,5641,5644,5646,5648,5650,5652,5654],{"class":3049,"line":5637},52,[3047,5639,5640],{"class":3074},"    string",[3047,5642,5643],{"class":3053},"?   ",[3047,5645,5398],{"class":3102},[3047,5647,3462],{"class":3053},[3047,5649,5625],{"class":3074},[3047,5651,5628],{"class":3053},[3047,5653,5631],{"class":3074},[3047,5655,5634],{"class":3053},[3047,5657,5659,5661,5664,5666,5668,5670,5672],{"class":3049,"line":5658},53,[3047,5660,5617],{"class":3057},[3047,5662,5663],{"class":3102},"  UpdatedAt",[3047,5665,3462],{"class":3053},[3047,5667,5625],{"class":3074},[3047,5669,5628],{"class":3053},[3047,5671,5631],{"class":3074},[3047,5673,5634],{"class":3053},[3047,5675,5677,5679,5681,5683,5685,5687,5689,5691],{"class":3049,"line":5676},54,[3047,5678,5640],{"class":3074},[3047,5680,5643],{"class":3053},[3047,5682,5437],{"class":3102},[3047,5684,3462],{"class":3053},[3047,5686,5625],{"class":3074},[3047,5688,5628],{"class":3053},[3047,5690,5631],{"class":3074},[3047,5692,5634],{"class":3053},[3047,5694,5696],{"class":3049,"line":5695},55,[3047,5697,3367],{"class":3053},[2963,5699,5700,5701,5703,5704,3106,5706,5708],{},"Тепер будь-який entity що реалізує ",[3001,5702,5321],{}," автоматично отримує ",[3001,5705,3822],{},[3001,5707,5418],{}," і автора — без жодного коду у сервісах.",[2973,5710],{},[2976,5712,5714],{"id":5713},"changetrackerclear-та-context-recycling","ChangeTracker.Clear() та Context Recycling",[2963,5716,5717],{},"При batch processing (обробка тисяч записів) — Change Tracker накопичує entity і споживає RAM:",[3013,5719,5721],{"className":3041,"code":5720,"language":3043,"meta":3021,"style":3021},"// ПРОБЛЕМА: Change Tracker росте необмежено\nfor (int i = 0; i \u003C 100_000; i++)\n{\n    var item = await context.Items.FindAsync(i);\n    item!.ProcessedAt = DateTime.UtcNow;\n    await context.SaveChanges(); // Entity залишається у трекері зі станом Unchanged\n}\n// Після 100K ітерацій: 100K entity у трекері → гігабайти RAM\n",[3001,5722,5723,5728,5762,5766,5793,5814,5829,5833],{"__ignoreMap":3021},[3047,5724,5725],{"class":3049,"line":3050},[3047,5726,5727],{"class":3127},"// ПРОБЛЕМА: Change Tracker росте необмежено\n",[3047,5729,5730,5733,5735,5737,5740,5742,5744,5746,5749,5752,5755,5757,5759],{"class":3049,"line":3071},[3047,5731,5732],{"class":3220},"for",[3047,5734,3224],{"class":3053},[3047,5736,3099],{"class":3074},[3047,5738,5739],{"class":3102}," i",[3047,5741,3140],{"class":3053},[3047,5743,4119],{"class":4118},[3047,5745,5628],{"class":3053},[3047,5747,5748],{"class":3102},"i",[3047,5750,5751],{"class":3053}," \u003C ",[3047,5753,5754],{"class":4118},"100_000",[3047,5756,5628],{"class":3053},[3047,5758,5748],{"class":3102},[3047,5760,5761],{"class":3053},"++)\n",[3047,5763,5764],{"class":3049,"line":3118},[3047,5765,3121],{"class":3053},[3047,5767,5768,5770,5772,5774,5776,5778,5780,5783,5785,5787,5789,5791],{"class":3049,"line":3124},[3047,5769,3134],{"class":3074},[3047,5771,4167],{"class":3102},[3047,5773,3140],{"class":3053},[3047,5775,3143],{"class":3074},[3047,5777,3146],{"class":3102},[3047,5779,3004],{"class":3053},[3047,5781,5782],{"class":3102},"Items",[3047,5784,3004],{"class":3053},[3047,5786,4552],{"class":3093},[3047,5788,3061],{"class":3053},[3047,5790,5748],{"class":3102},[3047,5792,3207],{"class":3053},[3047,5794,5795,5798,5801,5804,5806,5808,5810,5812],{"class":3049,"line":3131},[3047,5796,5797],{"class":3102},"    item",[3047,5799,5800],{"class":3053},"!.",[3047,5802,5803],{"class":3102},"ProcessedAt",[3047,5805,3140],{"class":3053},[3047,5807,5265],{"class":3102},[3047,5809,3004],{"class":3053},[3047,5811,5270],{"class":3102},[3047,5813,3280],{"class":3053},[3047,5815,5816,5818,5820,5822,5824,5826],{"class":3049,"line":3154},[3047,5817,3330],{"class":3074},[3047,5819,3146],{"class":3102},[3047,5821,3004],{"class":3053},[3047,5823,3337],{"class":3093},[3047,5825,3619],{"class":3053},[3047,5827,5828],{"class":3127},"// Entity залишається у трекері зі станом Unchanged\n",[3047,5830,5831],{"class":3049,"line":3180},[3047,5832,3367],{"class":3053},[3047,5834,5835],{"class":3049,"line":3210},[3047,5836,5837],{"class":3127},"// Після 100K ітерацій: 100K entity у трекері → гігабайти RAM\n",[3032,5839,5841],{"id":5840},"рішення-a-clear-після-кожного-батчу","Рішення A: Clear після кожного батчу",[3013,5843,5845],{"className":3041,"code":5844,"language":3043,"meta":3021,"style":3021},"const int batchSize = 500;\nvar allIds = await context.Items\n    .Where(i => i.ProcessedAt == null)\n    .Select(i => i.Id)\n    .ToListAsync();\n\nforeach (var batch in allIds.Chunk(batchSize))\n{\n    var items = await context.Items\n        .Where(i => batch.Contains(i.Id))\n        .ToListAsync();\n\n    foreach (var item in items)\n        item.ProcessedAt = DateTime.UtcNow;\n\n    await context.SaveChanges();\n    context.ChangeTracker.Clear(); // ← очистити трекер після батчу\n    // Тепер items знову Detached — трекер порожній, RAM звільнена\n}\n",[3001,5846,5847,5865,5883,5908,5928,5937,5941,5969,5973,5990,6019,6027,6031,6047,6066,6070,6082,6099,6104],{"__ignoreMap":3021},[3047,5848,5849,5852,5855,5858,5860,5863],{"class":3049,"line":3050},[3047,5850,5851],{"class":3074},"const",[3047,5853,5854],{"class":3074}," int",[3047,5856,5857],{"class":3102}," batchSize",[3047,5859,3140],{"class":3053},[3047,5861,5862],{"class":4118},"500",[3047,5864,3280],{"class":3053},[3047,5866,5867,5869,5872,5874,5876,5878,5880],{"class":3049,"line":3071},[3047,5868,4164],{"class":3074},[3047,5870,5871],{"class":3102}," allIds",[3047,5873,3140],{"class":3053},[3047,5875,3143],{"class":3074},[3047,5877,3146],{"class":3102},[3047,5879,3004],{"class":3053},[3047,5881,5882],{"class":3102},"Items\n",[3047,5884,5885,5887,5889,5891,5893,5895,5897,5899,5901,5903,5906],{"class":3049,"line":3118},[3047,5886,4716],{"class":3053},[3047,5888,4100],{"class":3093},[3047,5890,3061],{"class":3053},[3047,5892,5748],{"class":3102},[3047,5894,3168],{"class":3053},[3047,5896,5748],{"class":3102},[3047,5898,3004],{"class":3053},[3047,5900,5803],{"class":3102},[3047,5902,3201],{"class":3053},[3047,5904,5905],{"class":3074},"null",[3047,5907,3115],{"class":3053},[3047,5909,5910,5912,5914,5916,5918,5920,5922,5924,5926],{"class":3049,"line":3124},[3047,5911,4716],{"class":3053},[3047,5913,4057],{"class":3093},[3047,5915,3061],{"class":3053},[3047,5917,5748],{"class":3102},[3047,5919,3168],{"class":3053},[3047,5921,5748],{"class":3102},[3047,5923,3004],{"class":3053},[3047,5925,3198],{"class":3102},[3047,5927,3115],{"class":3053},[3047,5929,5930,5932,5935],{"class":3049,"line":3131},[3047,5931,4716],{"class":3053},[3047,5933,5934],{"class":3093},"ToListAsync",[3047,5936,3245],{"class":3053},[3047,5938,5939],{"class":3049,"line":3154},[3047,5940,3214],{"emptyLinePlaceholder":3213},[3047,5942,5943,5946,5948,5950,5953,5955,5957,5959,5962,5964,5967],{"class":3049,"line":3180},[3047,5944,5945],{"class":3220},"foreach",[3047,5947,3224],{"class":3053},[3047,5949,4164],{"class":3074},[3047,5951,5952],{"class":3102}," batch",[3047,5954,4170],{"class":3220},[3047,5956,5871],{"class":3102},[3047,5958,3004],{"class":3053},[3047,5960,5961],{"class":3093},"Chunk",[3047,5963,3061],{"class":3053},[3047,5965,5966],{"class":3102},"batchSize",[3047,5968,4141],{"class":3053},[3047,5970,5971],{"class":3049,"line":3210},[3047,5972,3121],{"class":3053},[3047,5974,5975,5977,5980,5982,5984,5986,5988],{"class":3049,"line":3217},[3047,5976,3134],{"class":3074},[3047,5978,5979],{"class":3102}," items",[3047,5981,3140],{"class":3053},[3047,5983,3143],{"class":3074},[3047,5985,3146],{"class":3102},[3047,5987,3004],{"class":3053},[3047,5989,5882],{"class":3102},[3047,5991,5992,5994,5996,5998,6000,6002,6005,6007,6009,6011,6013,6015,6017],{"class":3049,"line":3248},[3047,5993,3157],{"class":3053},[3047,5995,4100],{"class":3093},[3047,5997,3061],{"class":3053},[3047,5999,5748],{"class":3102},[3047,6001,3168],{"class":3053},[3047,6003,6004],{"class":3102},"batch",[3047,6006,3004],{"class":3053},[3047,6008,4130],{"class":3093},[3047,6010,3061],{"class":3053},[3047,6012,5748],{"class":3102},[3047,6014,3004],{"class":3053},[3047,6016,3198],{"class":3102},[3047,6018,4141],{"class":3053},[3047,6020,6021,6023,6025],{"class":3049,"line":3253},[3047,6022,3157],{"class":3053},[3047,6024,5934],{"class":3093},[3047,6026,3245],{"class":3053},[3047,6028,6029],{"class":3049,"line":3259},[3047,6030,3214],{"emptyLinePlaceholder":3213},[3047,6032,6033,6035,6037,6039,6041,6043,6045],{"class":3049,"line":3283},[3047,6034,4159],{"class":3220},[3047,6036,3224],{"class":3053},[3047,6038,4164],{"class":3074},[3047,6040,4167],{"class":3102},[3047,6042,4170],{"class":3220},[3047,6044,5979],{"class":3102},[3047,6046,3115],{"class":3053},[3047,6048,6049,6052,6054,6056,6058,6060,6062,6064],{"class":3049,"line":3304},[3047,6050,6051],{"class":3102},"        item",[3047,6053,3004],{"class":3053},[3047,6055,5803],{"class":3102},[3047,6057,3140],{"class":3053},[3047,6059,5265],{"class":3102},[3047,6061,3004],{"class":3053},[3047,6063,5270],{"class":3102},[3047,6065,3280],{"class":3053},[3047,6067,6068],{"class":3049,"line":3310},[3047,6069,3214],{"emptyLinePlaceholder":3213},[3047,6071,6072,6074,6076,6078,6080],{"class":3049,"line":3316},[3047,6073,3330],{"class":3074},[3047,6075,3146],{"class":3102},[3047,6077,3004],{"class":3053},[3047,6079,3337],{"class":3093},[3047,6081,3245],{"class":3053},[3047,6083,6084,6086,6088,6090,6092,6094,6096],{"class":3049,"line":3321},[3047,6085,3489],{"class":3102},[3047,6087,3004],{"class":3053},[3047,6089,4698],{"class":3102},[3047,6091,3004],{"class":3053},[3047,6093,4862],{"class":3093},[3047,6095,3619],{"class":3053},[3047,6097,6098],{"class":3127},"// ← очистити трекер після батчу\n",[3047,6100,6101],{"class":3049,"line":3327},[3047,6102,6103],{"class":3127},"    // Тепер items знову Detached — трекер порожній, RAM звільнена\n",[3047,6105,6106],{"class":3049,"line":3342},[3047,6107,3367],{"class":3053},[3032,6109,6111],{"id":6110},"рішення-b-asnotracking-executeupdate","Рішення B: AsNoTracking + ExecuteUpdate",[2963,6113,6114],{},"Для простих оновлень — взагалі без ChangeTracker:",[3013,6116,6118],{"className":3041,"code":6117,"language":3043,"meta":3021,"style":3021},"// Один SQL без трекінгу\nawait context.Items\n    .Where(i => i.ProcessedAt == null)\n    .ExecuteUpdateAsync(s => s.SetProperty(i => i.ProcessedAt, DateTime.UtcNow));\n",[3001,6119,6120,6125,6135,6159],{"__ignoreMap":3021},[3047,6121,6122],{"class":3049,"line":3050},[3047,6123,6124],{"class":3127},"// Один SQL без трекінгу\n",[3047,6126,6127,6129,6131,6133],{"class":3049,"line":3071},[3047,6128,3143],{"class":3074},[3047,6130,3146],{"class":3102},[3047,6132,3004],{"class":3053},[3047,6134,5882],{"class":3102},[3047,6136,6137,6139,6141,6143,6145,6147,6149,6151,6153,6155,6157],{"class":3049,"line":3118},[3047,6138,4716],{"class":3053},[3047,6140,4100],{"class":3093},[3047,6142,3061],{"class":3053},[3047,6144,5748],{"class":3102},[3047,6146,3168],{"class":3053},[3047,6148,5748],{"class":3102},[3047,6150,3004],{"class":3053},[3047,6152,5803],{"class":3102},[3047,6154,3201],{"class":3053},[3047,6156,5905],{"class":3074},[3047,6158,3115],{"class":3053},[3047,6160,6161,6163,6166,6168,6171,6173,6175,6177,6180,6182,6184,6186,6188,6190,6192,6194,6196,6198,6200],{"class":3049,"line":3124},[3047,6162,4716],{"class":3053},[3047,6164,6165],{"class":3093},"ExecuteUpdateAsync",[3047,6167,3061],{"class":3053},[3047,6169,6170],{"class":3102},"s",[3047,6172,3168],{"class":3053},[3047,6174,6170],{"class":3102},[3047,6176,3004],{"class":3053},[3047,6178,6179],{"class":3093},"SetProperty",[3047,6181,3061],{"class":3053},[3047,6183,5748],{"class":3102},[3047,6185,3168],{"class":3053},[3047,6187,5748],{"class":3102},[3047,6189,3004],{"class":3053},[3047,6191,5803],{"class":3102},[3047,6193,3106],{"class":3053},[3047,6195,5265],{"class":3102},[3047,6197,3004],{"class":3053},[3047,6199,5270],{"class":3102},[3047,6201,6202],{"class":3053},"));\n",[2973,6204],{},[2976,6206,6208],{"id":6207},"repository-pattern-і-правильний-dbcontext-lifecycle","Repository Pattern і правильний DbContext lifecycle",[2963,6210,6211],{},"У монолітних застосунках DbContext — Scoped (один на HTTP-запит). Але при великих операціях або batch workers — scope потрібно контролювати вручну.",[3032,6213,6215],{"id":6214},"проблема-довгоживучого-dbcontext","Проблема довгоживучого DbContext",[3013,6217,6219],{"className":3041,"code":6218,"language":3043,"meta":3021,"style":3021},"// ❌ НЕПРАВИЛЬНО: один DbContext на весь background worker\npublic class OrderProcessingWorker : BackgroundService\n{\n    private readonly AppDbContext _context; // Singleton! Небезпечно!\n\n    protected override async Task ExecuteAsync(CancellationToken stoppingToken)\n    {\n        while (!stoppingToken.IsCancellationRequested)\n        {\n            var orders = await _context.Orders // Трекер зростає нескінченно!\n                .Where(o => o.Status == \"Pending\")\n                .ToListAsync(stoppingToken);\n\n            foreach (var order in orders)\n                await ProcessOrderAsync(order, stoppingToken);\n\n            await Task.Delay(5000, stoppingToken);\n        }\n    }\n}\n",[3001,6220,6221,6226,6240,6244,6260,6264,6288,6292,6310,6314,6335,6361,6373,6377,6394,6412,6416,6439,6443,6447],{"__ignoreMap":3021},[3047,6222,6223],{"class":3049,"line":3050},[3047,6224,6225],{"class":3127},"// ❌ НЕПРАВИЛЬНО: один DbContext на весь background worker\n",[3047,6227,6228,6230,6232,6235,6237],{"class":3049,"line":3071},[3047,6229,3075],{"class":3074},[3047,6231,5044],{"class":3074},[3047,6233,6234],{"class":3057}," OrderProcessingWorker",[3047,6236,5050],{"class":3053},[3047,6238,6239],{"class":3057},"BackgroundService\n",[3047,6241,6242],{"class":3049,"line":3118},[3047,6243,3121],{"class":3053},[3047,6245,6246,6248,6250,6252,6255,6257],{"class":3049,"line":3124},[3047,6247,5062],{"class":3074},[3047,6249,5065],{"class":3074},[3047,6251,5047],{"class":3057},[3047,6253,6254],{"class":3102}," _context",[3047,6256,5628],{"class":3053},[3047,6258,6259],{"class":3127},"// Singleton! Небезпечно!\n",[3047,6261,6262],{"class":3049,"line":3131},[3047,6263,3214],{"emptyLinePlaceholder":3213},[3047,6265,6266,6269,6271,6273,6275,6278,6280,6283,6286],{"class":3049,"line":3154},[3047,6267,6268],{"class":3074},"    protected",[3047,6270,5156],{"class":3074},[3047,6272,3078],{"class":3074},[3047,6274,3081],{"class":3057},[3047,6276,6277],{"class":3093}," ExecuteAsync",[3047,6279,3061],{"class":3053},[3047,6281,6282],{"class":3057},"CancellationToken",[3047,6284,6285],{"class":3102}," stoppingToken",[3047,6287,3115],{"class":3053},[3047,6289,6290],{"class":3049,"line":3180},[3047,6291,3570],{"class":3053},[3047,6293,6294,6297,6300,6303,6305,6308],{"class":3049,"line":3210},[3047,6295,6296],{"class":3220},"        while",[3047,6298,6299],{"class":3053}," (!",[3047,6301,6302],{"class":3102},"stoppingToken",[3047,6304,3004],{"class":3053},[3047,6306,6307],{"class":3102},"IsCancellationRequested",[3047,6309,3115],{"class":3053},[3047,6311,6312],{"class":3049,"line":3217},[3047,6313,4309],{"class":3053},[3047,6315,6316,6319,6322,6324,6326,6328,6330,6332],{"class":3049,"line":3248},[3047,6317,6318],{"class":3074},"            var",[3047,6320,6321],{"class":3102}," orders",[3047,6323,3140],{"class":3053},[3047,6325,3143],{"class":3074},[3047,6327,6254],{"class":3102},[3047,6329,3004],{"class":3053},[3047,6331,3494],{"class":3102},[3047,6333,6334],{"class":3127}," // Трекер зростає нескінченно!\n",[3047,6336,6337,6340,6342,6344,6346,6348,6350,6352,6354,6356,6359],{"class":3049,"line":3253},[3047,6338,6339],{"class":3053},"                .",[3047,6341,4100],{"class":3093},[3047,6343,3061],{"class":3053},[3047,6345,3165],{"class":3102},[3047,6347,3168],{"class":3053},[3047,6349,3165],{"class":3102},[3047,6351,3004],{"class":3053},[3047,6353,3267],{"class":3102},[3047,6355,3201],{"class":3053},[3047,6357,6358],{"class":3064},"\"Pending\"",[3047,6360,3115],{"class":3053},[3047,6362,6363,6365,6367,6369,6371],{"class":3049,"line":3259},[3047,6364,6339],{"class":3053},[3047,6366,5934],{"class":3093},[3047,6368,3061],{"class":3053},[3047,6370,6302],{"class":3102},[3047,6372,3207],{"class":3053},[3047,6374,6375],{"class":3049,"line":3283},[3047,6376,3214],{"emptyLinePlaceholder":3213},[3047,6378,6379,6382,6384,6386,6388,6390,6392],{"class":3049,"line":3304},[3047,6380,6381],{"class":3220},"            foreach",[3047,6383,3224],{"class":3053},[3047,6385,4164],{"class":3074},[3047,6387,3137],{"class":3102},[3047,6389,4170],{"class":3220},[3047,6391,6321],{"class":3102},[3047,6393,3115],{"class":3053},[3047,6395,6396,6399,6402,6404,6406,6408,6410],{"class":3049,"line":3310},[3047,6397,6398],{"class":3074},"                await",[3047,6400,6401],{"class":3093}," ProcessOrderAsync",[3047,6403,3061],{"class":3053},[3047,6405,3227],{"class":3102},[3047,6407,3106],{"class":3053},[3047,6409,6302],{"class":3102},[3047,6411,3207],{"class":3053},[3047,6413,6414],{"class":3049,"line":3316},[3047,6415,3214],{"emptyLinePlaceholder":3213},[3047,6417,6418,6421,6423,6425,6428,6430,6433,6435,6437],{"class":3049,"line":3321},[3047,6419,6420],{"class":3074},"            await",[3047,6422,3081],{"class":3102},[3047,6424,3004],{"class":3053},[3047,6426,6427],{"class":3093},"Delay",[3047,6429,3061],{"class":3053},[3047,6431,6432],{"class":4118},"5000",[3047,6434,3106],{"class":3053},[3047,6436,6302],{"class":3102},[3047,6438,3207],{"class":3053},[3047,6440,6441],{"class":3049,"line":3327},[3047,6442,4362],{"class":3053},[3047,6444,6445],{"class":3049,"line":3342},[3047,6446,3593],{"class":3053},[3047,6448,6449],{"class":3049,"line":3348},[3047,6450,3367],{"class":3053},[3032,6452,6454],{"id":6453},"правильний-підхід-iservicescopefactory","Правильний підхід: IServiceScopeFactory",[3013,6456,6458],{"className":3041,"code":6457,"language":3043,"meta":3021,"style":3021},"// ✅ ПРАВИЛЬНО: новий scope і DbContext для кожної ітерації\npublic class OrderProcessingWorker : BackgroundService\n{\n    private readonly IServiceScopeFactory _scopeFactory;\n\n    public OrderProcessingWorker(IServiceScopeFactory scopeFactory)\n    {\n        _scopeFactory = scopeFactory;\n    }\n\n    protected override async Task ExecuteAsync(CancellationToken stoppingToken)\n    {\n        while (!stoppingToken.IsCancellationRequested)\n        {\n            using (var scope = _scopeFactory.CreateScope())\n            {\n                var context = scope.ServiceProvider.GetRequiredService\u003CAppDbContext>();\n\n                var pendingOrders = await context.Orders\n                    .Where(o => o.Status == \"Pending\")\n                    .Take(100) // Обробляємо батчами\n                    .ToListAsync(stoppingToken);\n\n                foreach (var order in pendingOrders)\n                {\n                    order.Status = \"Processing\";\n                    order.ProcessingStartedAt = DateTime.UtcNow;\n                }\n\n                await context.SaveChanges(stoppingToken);\n            } // ← Scope закривається: DbContext Disposed, трекер очищено\n\n            await Task.Delay(5000, stoppingToken);\n        }\n    }\n}\n",[3001,6459,6460,6465,6477,6481,6495,6499,6515,6519,6531,6535,6539,6559,6563,6577,6581,6606,6610,6639,6643,6660,6685,6702,6714,6718,6735,6740,6756,6775,6780,6784,6800,6808,6812,6832,6836,6840],{"__ignoreMap":3021},[3047,6461,6462],{"class":3049,"line":3050},[3047,6463,6464],{"class":3127},"// ✅ ПРАВИЛЬНО: новий scope і DbContext для кожної ітерації\n",[3047,6466,6467,6469,6471,6473,6475],{"class":3049,"line":3071},[3047,6468,3075],{"class":3074},[3047,6470,5044],{"class":3074},[3047,6472,6234],{"class":3057},[3047,6474,5050],{"class":3053},[3047,6476,6239],{"class":3057},[3047,6478,6479],{"class":3049,"line":3118},[3047,6480,3121],{"class":3053},[3047,6482,6483,6485,6487,6490,6493],{"class":3049,"line":3124},[3047,6484,5062],{"class":3074},[3047,6486,5065],{"class":3074},[3047,6488,6489],{"class":3057}," IServiceScopeFactory",[3047,6491,6492],{"class":3102}," _scopeFactory",[3047,6494,3280],{"class":3053},[3047,6496,6497],{"class":3049,"line":3131},[3047,6498,3214],{"emptyLinePlaceholder":3213},[3047,6500,6501,6503,6505,6507,6510,6513],{"class":3049,"line":3154},[3047,6502,5082],{"class":3074},[3047,6504,6234],{"class":3093},[3047,6506,3061],{"class":3053},[3047,6508,6509],{"class":3057},"IServiceScopeFactory",[3047,6511,6512],{"class":3102}," scopeFactory",[3047,6514,3115],{"class":3053},[3047,6516,6517],{"class":3049,"line":3180},[3047,6518,3570],{"class":3053},[3047,6520,6521,6524,6526,6529],{"class":3049,"line":3210},[3047,6522,6523],{"class":3102},"        _scopeFactory",[3047,6525,3140],{"class":3053},[3047,6527,6528],{"class":3102},"scopeFactory",[3047,6530,3280],{"class":3053},[3047,6532,6533],{"class":3049,"line":3217},[3047,6534,3593],{"class":3053},[3047,6536,6537],{"class":3049,"line":3248},[3047,6538,3214],{"emptyLinePlaceholder":3213},[3047,6540,6541,6543,6545,6547,6549,6551,6553,6555,6557],{"class":3049,"line":3253},[3047,6542,6268],{"class":3074},[3047,6544,5156],{"class":3074},[3047,6546,3078],{"class":3074},[3047,6548,3081],{"class":3057},[3047,6550,6277],{"class":3093},[3047,6552,3061],{"class":3053},[3047,6554,6282],{"class":3057},[3047,6556,6285],{"class":3102},[3047,6558,3115],{"class":3053},[3047,6560,6561],{"class":3049,"line":3259},[3047,6562,3570],{"class":3053},[3047,6564,6565,6567,6569,6571,6573,6575],{"class":3049,"line":3283},[3047,6566,6296],{"class":3220},[3047,6568,6299],{"class":3053},[3047,6570,6302],{"class":3102},[3047,6572,3004],{"class":3053},[3047,6574,6307],{"class":3102},[3047,6576,3115],{"class":3053},[3047,6578,6579],{"class":3049,"line":3304},[3047,6580,4309],{"class":3053},[3047,6582,6583,6586,6588,6590,6593,6595,6598,6600,6603],{"class":3049,"line":3310},[3047,6584,6585],{"class":3220},"            using",[3047,6587,3224],{"class":3053},[3047,6589,4164],{"class":3074},[3047,6591,6592],{"class":3102}," scope",[3047,6594,3140],{"class":3053},[3047,6596,6597],{"class":3102},"_scopeFactory",[3047,6599,3004],{"class":3053},[3047,6601,6602],{"class":3093},"CreateScope",[3047,6604,6605],{"class":3053},"())\n",[3047,6607,6608],{"class":3049,"line":3316},[3047,6609,4407],{"class":3053},[3047,6611,6612,6615,6617,6619,6622,6624,6627,6629,6632,6634,6636],{"class":3049,"line":3321},[3047,6613,6614],{"class":3074},"                var",[3047,6616,3146],{"class":3102},[3047,6618,3140],{"class":3053},[3047,6620,6621],{"class":3102},"scope",[3047,6623,3004],{"class":3053},[3047,6625,6626],{"class":3102},"ServiceProvider",[3047,6628,3004],{"class":3053},[3047,6630,6631],{"class":3093},"GetRequiredService",[3047,6633,3084],{"class":3053},[3047,6635,5094],{"class":3057},[3047,6637,6638],{"class":3053},">();\n",[3047,6640,6641],{"class":3049,"line":3327},[3047,6642,3214],{"emptyLinePlaceholder":3213},[3047,6644,6645,6647,6650,6652,6654,6656,6658],{"class":3049,"line":3342},[3047,6646,6614],{"class":3074},[3047,6648,6649],{"class":3102}," pendingOrders",[3047,6651,3140],{"class":3053},[3047,6653,3143],{"class":3074},[3047,6655,3146],{"class":3102},[3047,6657,3004],{"class":3053},[3047,6659,3151],{"class":3102},[3047,6661,6662,6665,6667,6669,6671,6673,6675,6677,6679,6681,6683],{"class":3049,"line":3348},[3047,6663,6664],{"class":3053},"                    .",[3047,6666,4100],{"class":3093},[3047,6668,3061],{"class":3053},[3047,6670,3165],{"class":3102},[3047,6672,3168],{"class":3053},[3047,6674,3165],{"class":3102},[3047,6676,3004],{"class":3053},[3047,6678,3267],{"class":3102},[3047,6680,3201],{"class":3053},[3047,6682,6358],{"class":3064},[3047,6684,3115],{"class":3053},[3047,6686,6687,6689,6692,6694,6697,6699],{"class":3049,"line":3353},[3047,6688,6664],{"class":3053},[3047,6690,6691],{"class":3093},"Take",[3047,6693,3061],{"class":3053},[3047,6695,6696],{"class":4118},"100",[3047,6698,3236],{"class":3053},[3047,6700,6701],{"class":3127},"// Обробляємо батчами\n",[3047,6703,6704,6706,6708,6710,6712],{"class":3049,"line":3364},[3047,6705,6664],{"class":3053},[3047,6707,5934],{"class":3093},[3047,6709,3061],{"class":3053},[3047,6711,6302],{"class":3102},[3047,6713,3207],{"class":3053},[3047,6715,6716],{"class":3049,"line":4203},[3047,6717,3214],{"emptyLinePlaceholder":3213},[3047,6719,6720,6723,6725,6727,6729,6731,6733],{"class":3049,"line":4209},[3047,6721,6722],{"class":3220},"                foreach",[3047,6724,3224],{"class":3053},[3047,6726,4164],{"class":3074},[3047,6728,3137],{"class":3102},[3047,6730,4170],{"class":3220},[3047,6732,6649],{"class":3102},[3047,6734,3115],{"class":3053},[3047,6736,6737],{"class":3049,"line":4231},[3047,6738,6739],{"class":3053},"                {\n",[3047,6741,6742,6745,6747,6749,6751,6754],{"class":3049,"line":4236},[3047,6743,6744],{"class":3102},"                    order",[3047,6746,3004],{"class":3053},[3047,6748,3267],{"class":3102},[3047,6750,3140],{"class":3053},[3047,6752,6753],{"class":3064},"\"Processing\"",[3047,6755,3280],{"class":3053},[3047,6757,6758,6760,6762,6765,6767,6769,6771,6773],{"class":3049,"line":4281},[3047,6759,6744],{"class":3102},[3047,6761,3004],{"class":3053},[3047,6763,6764],{"class":3102},"ProcessingStartedAt",[3047,6766,3140],{"class":3053},[3047,6768,5265],{"class":3102},[3047,6770,3004],{"class":3053},[3047,6772,5270],{"class":3102},[3047,6774,3280],{"class":3053},[3047,6776,6777],{"class":3049,"line":4286},[3047,6778,6779],{"class":3053},"                }\n",[3047,6781,6782],{"class":3049,"line":4306},[3047,6783,3214],{"emptyLinePlaceholder":3213},[3047,6785,6786,6788,6790,6792,6794,6796,6798],{"class":3049,"line":4312},[3047,6787,6398],{"class":3074},[3047,6789,3146],{"class":3102},[3047,6791,3004],{"class":3053},[3047,6793,3337],{"class":3093},[3047,6795,3061],{"class":3053},[3047,6797,6302],{"class":3102},[3047,6799,3207],{"class":3053},[3047,6801,6802,6805],{"class":3049,"line":4318},[3047,6803,6804],{"class":3053},"            } ",[3047,6806,6807],{"class":3127},"// ← Scope закривається: DbContext Disposed, трекер очищено\n",[3047,6809,6810],{"class":3049,"line":4339},[3047,6811,3214],{"emptyLinePlaceholder":3213},[3047,6813,6814,6816,6818,6820,6822,6824,6826,6828,6830],{"class":3049,"line":4359},[3047,6815,6420],{"class":3074},[3047,6817,3081],{"class":3102},[3047,6819,3004],{"class":3053},[3047,6821,6427],{"class":3093},[3047,6823,3061],{"class":3053},[3047,6825,6432],{"class":4118},[3047,6827,3106],{"class":3053},[3047,6829,6302],{"class":3102},[3047,6831,3207],{"class":3053},[3047,6833,6834],{"class":3049,"line":4365},[3047,6835,4362],{"class":3053},[3047,6837,6838],{"class":3049,"line":4371},[3047,6839,3593],{"class":3053},[3047,6841,6842],{"class":3049,"line":4376},[3047,6843,3367],{"class":3053},[2963,6845,6846],{},"Кожна ітерація — свій DbContext → чистий трекер → без RAM-витоку.",[2973,6848],{},[2976,6850,6852],{"id":6851},"практичні-завдання-частина-2","Практичні завдання (Частина 2)",[3032,6854,6856],{"id":6855},"рівень-1-базовий","Рівень 1 — Базовий",[6858,6859,6860,6865,6872,6886,6893,6898,6938,6959,6964,6971,6990],"steps",{},[2963,6861,6862],{},[2986,6863,6864],{},"Завдання 1.1: Connected vs Disconnected реалізація",[2963,6866,6867,6868,6871],{},"Для ",[3001,6869,6870],{},"Customer"," реалізуйте два варіанти PUT endpoint:",[6873,6874,6875,6880],"ol",{},[4062,6876,6877,6879],{},[2986,6878,2988],{},": завантажити → оновити поля → SaveChanges",[4062,6881,6882,6885],{},[2986,6883,6884],{},"Disconnected через Attach",": не завантажувати, Attach + позначити IsModified = true для конкретних полів",[2963,6887,6888,6889,6892],{},"Для кожного перевірте через ",[3001,6890,6891],{},"LogTo",": скільки SQL-запитів виконується?",[2963,6894,6895],{},[2986,6896,6897],{},"Завдання 1.2: SetValues для безпечного оновлення",[3013,6899,6901],{"className":3041,"code":6900,"language":3043,"meta":3021,"style":3021},"var updateDto = new ProductUpdateDto { Name = \"New Name\", Price = 9999m };\n",[3001,6902,6903],{"__ignoreMap":3021},[3047,6904,6905,6907,6910,6912,6914,6917,6919,6921,6923,6926,6928,6931,6933,6936],{"class":3049,"line":3050},[3047,6906,4164],{"class":3074},[3047,6908,6909],{"class":3102}," updateDto",[3047,6911,3140],{"class":3053},[3047,6913,3456],{"class":3074},[3047,6915,6916],{"class":3057}," ProductUpdateDto",[3047,6918,3462],{"class":3053},[3047,6920,4593],{"class":3102},[3047,6922,3140],{"class":3053},[3047,6924,6925],{"class":3064},"\"New Name\"",[3047,6927,3106],{"class":3053},[3047,6929,6930],{"class":3102},"Price",[3047,6932,3140],{"class":3053},[3047,6934,6935],{"class":4118},"9999m",[3047,6937,3480],{"class":3053},[2963,6939,6940,6941,6944,6945,6947,6948,6951,6952,6954,6955,6958],{},"Реалізуйте метод ",[3001,6942,6943],{},"UpdateProductAsync(int id, ProductUpdateDto dto)"," через ",[3001,6946,4552],{}," + ",[3001,6949,6950],{},"CurrentValues.SetValues(dto)",". Перевірте: якщо в ",[3001,6953,3273],{}," відсутнє поле ",[3001,6956,6957],{},"CategoryId"," — чи не перезаписує воно значення у БД?",[2963,6960,6961],{},[2986,6962,6963],{},"Завдання 1.3: ChangeTracker.Clear() у batch",[2963,6965,6966,6967,6970],{},"Обробіть 10,000 ",[3001,6968,6969],{},"LogEntry"," записів батчами по 500:",[6873,6972,6973,6984],{},[4062,6974,6975,6976,6979,6980,6983],{},"Без ",[3001,6977,6978],{},"Clear()",": виміряйте ",[3001,6981,6982],{},"Process.GetCurrentProcess().WorkingSet64"," в кінці",[4062,6985,6986,6987,6989],{},"З ",[3001,6988,6978],{}," після кожного батчу: те ж вимірювання",[2963,6991,6992],{},"Різниця у споживанні RAM?",[3032,6994,6996],{"id":6995},"рівень-2-логіка","Рівень 2 — Логіка",[6858,6998,6999,7004,7010,7043,7052,7057,7064,7173],{},[2963,7000,7001],{},[2986,7002,7003],{},"Завдання 2.1: Повний Audit Log через SaveChanges override",[2963,7005,7006,7007,7009],{},"Overriding ",[3001,7008,5031],{}," у DbContext:",[6873,7011,7012,7026,7033,7040],{},[4062,7013,7014,7015,7018,7019,7022,7023],{},"Перед збереженням — читає ",[3001,7016,7017],{},"ChangeTracker.Entries()"," для всіх ",[3001,7020,7021],{},"EntityState.Modified"," і ",[3001,7024,7025],{},"Deleted",[4062,7027,7028,7029,7032],{},"Для кожного entry збирає ",[3001,7030,7031],{},"{ PropertyName, OriginalValue, CurrentValue }"," для змінених полів",[4062,7034,7035,7036,7039],{},"Серіалізує у JSON і зберігає у ",[3001,7037,7038],{},"AuditLog"," таблицю",[4062,7041,7042],{},"Зберігає у тій самій транзакції що і основні зміни",[2963,7044,7045,7046,7049,7050,3004],{},"Протестуйте: після ",[3001,7047,7048],{},"order.Status = \"Shipped\"; SaveChanges()"," — перевірте запис в ",[3001,7051,7038],{},[2963,7053,7054],{},[2986,7055,7056],{},"Завдання 2.2: Disconnected граф (Order + LineItems)",[2963,7058,7059,7060,7063],{},"PUT ",[3001,7061,7062],{},"/api/orders/{id}"," приймає:",[3013,7065,7069],{"className":7066,"code":7067,"language":7068,"meta":3021,"style":3021},"language-json shiki shiki-themes light-plus dark-plus dark-plus","{\n  \"notes\": \"Updated\",\n  \"lineItems\": [\n    { \"id\": 1, \"quantity\": 3 },    // існуючий, змінений\n    { \"id\": 0, \"productId\": 99, \"quantity\": 1 },  // новий\n    // item з id=2: відсутній → видалити\n  ]\n}\n","json",[3001,7070,7071,7075,7088,7096,7125,7159,7164,7169],{"__ignoreMap":3021},[3047,7072,7073],{"class":3049,"line":3050},[3047,7074,3121],{"class":3053},[3047,7076,7077,7081,7084,7086],{"class":3049,"line":3071},[3047,7078,7080],{"class":7079},"sLwNe","  \"notes\"",[3047,7082,7083],{"class":3053},": ",[3047,7085,4598],{"class":3064},[3047,7087,4425],{"class":3053},[3047,7089,7090,7093],{"class":3049,"line":3118},[3047,7091,7092],{"class":7079},"  \"lineItems\"",[3047,7094,7095],{"class":3053},": [\n",[3047,7097,7098,7101,7104,7106,7109,7111,7114,7116,7119,7122],{"class":3049,"line":3124},[3047,7099,7100],{"class":3053},"    { ",[3047,7102,7103],{"class":7079},"\"id\"",[3047,7105,7083],{"class":3053},[3047,7107,7108],{"class":4118},"1",[3047,7110,3106],{"class":3053},[3047,7112,7113],{"class":7079},"\"quantity\"",[3047,7115,7083],{"class":3053},[3047,7117,7118],{"class":4118},"3",[3047,7120,7121],{"class":3053}," },    ",[3047,7123,7124],{"class":3127},"// існуючий, змінений\n",[3047,7126,7127,7129,7131,7133,7135,7137,7140,7142,7145,7147,7149,7151,7153,7156],{"class":3049,"line":3131},[3047,7128,7100],{"class":3053},[3047,7130,7103],{"class":7079},[3047,7132,7083],{"class":3053},[3047,7134,4119],{"class":4118},[3047,7136,3106],{"class":3053},[3047,7138,7139],{"class":7079},"\"productId\"",[3047,7141,7083],{"class":3053},[3047,7143,7144],{"class":4118},"99",[3047,7146,3106],{"class":3053},[3047,7148,7113],{"class":7079},[3047,7150,7083],{"class":3053},[3047,7152,7108],{"class":4118},[3047,7154,7155],{"class":3053}," },  ",[3047,7157,7158],{"class":3127},"// новий\n",[3047,7160,7161],{"class":3049,"line":3154},[3047,7162,7163],{"class":3127},"    // item з id=2: відсутній → видалити\n",[3047,7165,7166],{"class":3049,"line":3180},[3047,7167,7168],{"class":3053},"  ]\n",[3047,7170,7171],{"class":3049,"line":3210},[3047,7172,3367],{"class":3053},[2963,7174,7175,7176,3004],{},"Реалізуйте повне порівняння: видалення відсутніх, оновлення існуючих, додавання нових — все в одному ",[3001,7177,3337],{},[3032,7179,7181],{"id":7180},"рівень-3-архітектура","Рівень 3 — Архітектура",[6858,7183,7184,7189,7192,7240],{},[2963,7185,7186],{},[2986,7187,7188],{},"Завдання 3.1: Domain Events через SaveChanges",[2963,7190,7191],{},"Реалізуйте повноцінний Domain Events механізм:",[6873,7193,7194,7209,7217,7231],{},[4062,7195,7196,7199,7200,3106,7203,3106,7206],{},[3001,7197,7198],{},"IDomainEntity"," інтерфейс: ",[3001,7201,7202],{},"IReadOnlyCollection\u003CIDomainEvent> Events",[3001,7204,7205],{},"RaiseDomainEvent(IDomainEvent)",[3001,7207,7208],{},"ClearDomainEvents()",[4062,7210,7211,7213,7214],{},[3001,7212,3733],{}," клас: при зміні Status додає ",[3001,7215,7216],{},"OrderStatusChangedEvent { OrderId, OldStatus, NewStatus }",[4062,7218,7219,7222,7223,7226,7227,7230],{},[3001,7220,7221],{},"AppDbContext.SaveChangesAsync"," override: після збереження — збирає всі Events з ",[3001,7224,7225],{},"ChangeTracker.Entries\u003CIDomainEntity>()",", публікує через ",[3001,7228,7229],{},"IPublisher"," (MediatR)",[4062,7232,7233,7236,7237],{},[3001,7234,7235],{},"OrderStatusChangedEventHandler"," — надсилає email через ",[3001,7238,7239],{},"IEmailService",[2963,7241,7242,7243,7245],{},"Протестуйте що Event публікується рівно один раз після ",[3001,7244,3337],{}," і не публікується при ролбеку.",[2973,7247],{},[2976,7249,7251],{"id":7250},"підсумок-статті-20","Підсумок статті 20",[2963,7253,7254],{},"Ця стаття повністю розкрила Change Tracker у EF Core:",[2963,7256,7257],{},[2986,7258,7259],{},"Частина 1 — Основи:",[7261,7262,7263,7269,7272,7279,7285,7288],"ul",{},[4062,7264,7265,7266,7268],{},"Identity Map: один PK = один C#-об'єкт, ",[3001,7267,4552],{}," перевіряє кеш.",[4062,7270,7271],{},"EntityState lifecycle: Detached → Added/Unchanged/Modified/Deleted.",[4062,7273,7274,7275,7278],{},"Snapshot Detection: копія при завантаженні, ",[3001,7276,7277],{},"DetectChanges"," порівнює. UPDATE тільки змінених стовпців.",[4062,7280,7281,7284],{},[3001,7282,7283],{},"AutoDetectChangesEnabled = false"," для batch processing.",[4062,7286,7287],{},"ChangeTracker.Entries API: перегляд і маніпуляція станом.",[4062,7289,7290],{},"Attach vs Update: partial vs full Modified.",[2963,7292,7293],{},[2986,7294,7295],{},"Частина 2 — Просунуті сценарії:",[7261,7297,7298,7301,7304,7307,7316,7321,7326],{},[4062,7299,7300],{},"Connected vs Disconnected: HTTP stateless = кожен запит новий DbContext = Disconnected.",[4062,7302,7303],{},"Три підходи до оновлення: Load+Modify (безпечно), Attach+IsModified (ефективно), Update (зручно, але жирний SQL).",[4062,7305,7306],{},"Disconnected граф: порівняння колекцій → DELETE/UPDATE/INSERT в одній транзакції.",[4062,7308,7309,7310,7313,7314,3004],{},"Проблема подвійного трекування: ",[3001,7311,7312],{},"InvalidOperationException"," при Attach вже трекованого. Вирішення через ",[3001,7315,4788],{},[4062,7317,7318,7320],{},[3001,7319,5031],{}," override для автоматичного аудиту (CreatedAt, UpdatedAt, Domain Events).",[4062,7322,7323,7284],{},[3001,7324,7325],{},"ChangeTracker.Clear()",[4062,7327,7328,7330],{},[3001,7329,6509],{}," для правильного DbContext lifecycle у background workers.",[2963,7332,7333,7334,7338,7339,7341,7342,7345],{},"Наступна стаття — ",[2967,7335,7337],{"href":7336},"/csharp/ef-core/21.saving-data","Saving Data та Транзакції (стаття 21)"," — розкриє ",[3001,7340,3337],{},", явні транзакції, ",[3001,7343,7344],{},"Savepoints",", транзакції між кількома DbContext і паттерни надійного запису.",[2973,7347],{},[2976,7349,7351],{"id":7350},"додаткові-ресурси","Додаткові ресурси",[7261,7353,7354,7362,7369,7376],{},[4062,7355,7356],{},[2967,7357,7361],{"href":7358,"rel":7359},"https://learn.microsoft.com/en-us/ef/core/change-tracking/",[7360],"nofollow","Офіційна документація: Change Tracking",[4062,7363,7364],{},[2967,7365,7368],{"href":7366,"rel":7367},"https://learn.microsoft.com/en-us/ef/core/change-tracking/disconnected-entities",[7360],"Disconnected Entities",[4062,7370,7371],{},[2967,7372,7375],{"href":7373,"rel":7374},"https://learn.microsoft.com/en-us/ef/core/change-tracking/identity-resolution",[7360],"Identity Resolution",[4062,7377,7378],{},[2967,7379,7382],{"href":7380,"rel":7381},"https://learn.microsoft.com/en-us/ef/core/saving/transactions",[7360],"SaveChanges and Transactions",[7384,7385,7386],"style",{},"html pre.shiki code .sHH4Y, html code.shiki .sHH4Y{--shiki-light:#000000;--shiki-default:#D4D4D4;--shiki-dark:#D4D4D4}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 .su1O8, html code.shiki .su1O8{--shiki-light:#0000FF;--shiki-default:#569CD6;--shiki-dark:#569CD6}html pre.shiki code .s8Opu, html code.shiki .s8Opu{--shiki-light:#795E26;--shiki-default:#DCDCAA;--shiki-dark:#DCDCAA}html pre.shiki code .siwwj, html code.shiki .siwwj{--shiki-light:#001080;--shiki-default:#9CDCFE;--shiki-dark:#9CDCFE}html pre.shiki code .spJ8K, html code.shiki .spJ8K{--shiki-light:#008000;--shiki-default:#6A9955;--shiki-dark:#6A9955}html pre.shiki code .sCDza, html code.shiki .sCDza{--shiki-light:#AF00DB;--shiki-default:#CE92A4;--shiki-dark:#CE92A4}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 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.sJj4R{--shiki-light:#098658;--shiki-default:#B5CEA8;--shiki-dark:#B5CEA8}html pre.shiki code .sLwNe, html code.shiki .sLwNe{--shiki-light:#0451A5;--shiki-default:#9CDCFE;--shiki-dark:#9CDCFE}",{"title":3021,"searchDepth":3071,"depth":3071,"links":7388},[7389,7390,7395,7398,7404,7405,7409,7413,7418,7419],{"id":2978,"depth":3071,"text":2979},{"id":3026,"depth":3071,"text":3027,"children":7391},[7392,7393,7394],{"id":3034,"depth":3118,"text":3035},{"id":3382,"depth":3118,"text":3383},{"id":3655,"depth":3118,"text":3656},{"id":3831,"depth":3071,"text":3832,"children":7396},[7397],{"id":3858,"depth":3118,"text":3859},{"id":4515,"depth":3071,"text":4516,"children":7399},[7400,7401,7402],{"id":4671,"depth":3118,"text":4672},{"id":4838,"depth":3118,"text":4839},{"id":4894,"depth":3118,"text":7403},"Вирішення C: Використати 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