Using Ninject with a Custom Role provider in an MVC3 app

Question

I\'m trying to use a custom role provider in an MVC3 app. I\'ve already got the membership provider working ok using Ninject but can\'t seem to get the role provider working.

Answer 1

Alternatively, if you're using the Ninject.Web.Mvc nuget package you can always use property injection on your role provider as illustrated here:

ASP.NET MVC 3 Ninject Custom Membership and Role Provider

Answer 2

Since the role provider, in this case the NHibernateRoleProvider is instantiated by the ASP.NET framework the best solution is to use the service locator pattern. The service locator pattern is normally considered to be an anti-pattern but sometimes you have to be pragmatic and accepted the limitation on the framework that is being used (in this case the ASP.NET framework).

Assuming you are using an implementation of the IDependencyResolver interface for Ninject. The following code should work.

public class NHibernateMembershipProvider : MembershipProvider
{
    private IUserRepository _repo;

    public NHibernateMembershipProvider()
    {
        _repo = DependencyResolver.Current.GetService<IUserRepository>();
    }

    // ...
}