.NET DbContext or DbContextFactory

Question

i use clean architecture - https://github.com/jasontaylordev/CleanArchitecture . And im stuck on one problem. I would like use DbContextFactory. But it's problem here. Because DbContext interface - IApplicationDbContext is declared in project Application. Real DbContext is in Infrastructure project. So i cannot use DbContextFactory because i cannot use something like this IDbContextFactory. Can somebody help me please? I'm really distressed of this. Thank you:)

Answer 1

One way would be to build your own factory abstraction and use the EF Core IDbContextFactory<TContext> in the implementation:

interface IApplicationDbContextFactory
{
    IApplicationDbContext CreateDbContext();
}

and then use EF Core's IDbContextFactory in the implementation:

public class ApplicationDbContextFactory<TContext> : IApplicationDbContextFactory 
    where TContext : IApplicationDbContext
{
    private readonly IDbContextFactory<TContext> _factory;

    public ApplicationDbContextFactory(IDbContextFactory<TContext> factory)
    {
        _factory = factory;
    }

    public IApplicationDbContext CreateDbContext() => _factory.CreateDbContext();
}