Get current user logged in in Custom Authentication MVC 4 - sql

Question

I have created a simple login table without simplemembership because in my project i don't need to have a register, the users need to be created automatically in the database. (Made following this tutorial).
I have a model Login:
public class Login
{
public virtual int UserId { get; set; }
public virtual string Username { get; set; }
public virtual string Password { get; set; }
public virtual List<Enrollment> Enrollments { get; set; }
}
and Enrollments:
public class Enrollment
{
public virtual int EnrollmentId { get; set; }
public virtual string Name { get; set; }
public virtual List<Login> Users { get; set; }
}
And i have a table Enrollment_Login because of the many-to-many relationship.
I need to create a view where i show a list of enrollments that the user logged in is "registered".
I have this query:
var query= from name in db.Enrollments
where name.Logins.Any(c=>c.LoginId==??)
select name;
If this query is right, how can i get the current user logged in?

Answer 1

You can't get the LoginId (which I think is a foreign key of your Login entity in Enrollement entity)
When user is authenticated the the name of that user is stored in this.User.Identity.Name if you're in your action method.
The name in your case is the UserName property in Login entity.
So you must write the following code :
var currentLogin = db.Logins.Single(u => u.UserName = this.User.Identity.Name);
var query= from name in db.Enrollments
where name.Logins.Any(c=>c.LoginId==currentLogin.Id)
select name;
Or in one query:
var query= from enrollement in db.Enrollments
join login in db.Logins on enrollement.LoginId equals login.UserId
where login.UserName == this.User.Identity.Name
select enrollement;