Microsoft.EntityFrameworkCore.SqlServer - 数据库未在 context.Database.Migrate() 上更新；

Question

I'm trying to move a project from using Dapper to Microsoft.EntityFrameworkCore.SqlServer.

I've created the entities and their respective mappings(configurations).

Also I'm running in my ConfigureServices method inside startup.

using var scope = app.ApplicationServices.GetRequiredService<IServiceScopeFactory>().CreateScope();
using var context = scope.ServiceProvider.GetRequiredService<SpannerContext>();
context.Database.EnsureCreated();
context.Database.Migrate();

But nothing is happening;

Logs shows:

info: Microsoft.EntityFrameworkCore.Migrations[20405]
      No migrations were applied. The database is already up to date.

But I've added some new DbSets and also change some column types

Am I missing something?

Answer 1

try to generate your models and configuration form an existing database, then apply the modifications/changes in your models.

https://www.entityframeworktutorial.net/efcore/create-model-for-existing-database-in-ef-core.aspx

Answer 2

I order to solve the problem i followed the following steps

1. Scaffold the database;
2. Add a migration;
3. Run the code for the first time, to ensure the entity framework migrations table is created;
4. Go to the entity framework table and add the name of the create migration;
5. Modify the database with the new tables/columns e etc;
6. Add a new migration;

The new migration should work as expected;

This way you don't need to comment the up part of the code;