Pass in DbContextOptions to /Microsoft.AspNet.Identity.EntityFramework.IdentityDbContext

[diffused]

Would like to externally override DbContextOptions when instantiating a context that uses IdentityDbContext like so:

public class AppDbContext : IdentityDbContext<ApplicationUser>
{
    public AppDbContext() { }

    public AppDbContext(DbContextOptions options)
        : base(options)
    {
    }
}

Perhaps adding something like this to IdentityDbContext.cs?

public class IdentityDbContext<TUser> : IdentityDbContext<TUser, IdentityRole, string> where TUser : IdentityUser
{
    public IdentityDbContext() { }
    public IdentityDbContext(DbContextOptions options)
        : base(options)
    {
    }
}

[rustd]

@divega can you please comment on this?

[divega]

@diffused could you elaborate a bit on why you would want this? To be clear currently if you use the AddDbContext<T>(options => { ... }) method on ConfigureServices() you will get an instance of DbContextOptions accessible to the DbContext without having to have a parameter constructor. On the other hand, the case can be made for copying all the non-default constructors from DbContext into the IdentityDbContext, we are just not sure about the priority of doing so.

[diffused]

I'd like to be able to do something like this:

public class Startup
{

    public void ConfigureServices(IServiceCollection services)
    { 
        var connectionString = Configuration.Get("Data:DefaultConnection:ConnectionString");

        // Add EF services to the services container.
        services.AddEntityFramework(Configuration)
            .AddSqlServer()
            .AddDbContext<AppDbContext>(option => {
                option.UseSqlServer(connectionString);
            }); 
    }

}

I've been using "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-beta3"
(it's what comes up in in intellisense when adding to the project.json)

[rustd]

This should work. Can you tell us what does not work?

[rustd]

Closing as we think this should work with Beta4. Please reopen if it does not.