https://github.com/tomashubelbauer/ef-sqlite

Reproducing an issue with migrations and table rebuilds I had in EF Core SQLite
https://github.com/tomashubelbauer/ef-sqlite

ef ef-core entity-framework entity-framework-core migrations sqlite

Last synced: 2 months ago
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Reproducing an issue with migrations and table rebuilds I had in EF Core SQLite

• Host: GitHub
• URL: https://github.com/tomashubelbauer/ef-sqlite
• Owner: TomasHubelbauer
• Created: 2019-12-08T20:22:47.000Z (over 6 years ago)
• Default Branch: main
• Last Pushed: 2022-04-14T20:14:06.000Z (about 4 years ago)
• Last Synced: 2025-06-03T11:32:16.075Z (about 1 year ago)
• Topics: ef, ef-core, entity-framework, entity-framework-core, migrations, sqlite
• Language: C#
• Homepage:
• Size: 7.81 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

README

          
# EF Core SQLite

SQLite has an EF Core provider, which is great, because SQLite is a RDBMS which

can run in-process unlike SQL Server, Postgres etc. but still has on-disk

persistence unlike say the in-memory provider. Unfortunately, in SQLite, a lot

of schema operations require table rebuilds, which are not supported in EF Core:

https://github.com/aspnet/EntityFrameworkCore/issues/329

This repository demonstrates the problem.

- `dotnet new console`

- `dotnet add package Microsoft.EntityFrameworkCore.Sqlite`

- Create `AppDbContext` with a single `DbSet` property of items

- Create the `Item` model class with an ID and a name

- Override `OnConfiguring` in `AppDbContext` to connect to SQLite

- Reset the database and then insert, save and retrieve an item for a test

  - Use `EnsureDeleted` following by `EnsureCreated` to carry out the reset

- `dotnet run` to verify everything works

- Reference the design package for EF tools:

  `dotnet add package Microsoft.EntityFrameworkCore.Design`

- Scaffold the initial migration:

  `dotnet ef migrations add ScaffoldInitialSchema`

- Create a new entity - `User` and reference it in an `Item` and vice-versa 1:N

- Create a new `DbSet` for the user entity

- Expand the demo code to create the user with the item and persist both at once

- Scaffold a new migration capturing the new entity and relationships:

  `dotnet ef migrations add AddUserEntityAndItemReference`

- Replace the database reset with a `Migrate` call to force automated migration

  - Or not replace but follow up?

## To-Do

### Retest now that SQLite table rebuilds have landed

https://github.com/aspnet/EntityFrameworkCore/issues/329