Foreign Key table Map - entity-framework

Question

I have 3 Entities that have many combinations on my site.
I would to create the follow hierarchy:
Each User have collection of UserRoles.
Each UserRole have a fixed collection of PermissionRecords
Each PermissionRecord have a fild of PermissionRecordPrivileges that varies from user to user.
I would like to get the user's privileges (getting the permissionRecord and UserRole collection is quite trivial).
As I understand, I need to create a table that merges the following data:
UserId, PermissionRecordId, PermissionPrivilegesId (3 Foreign keys that create primary key)
How can I do this using EF 5 ( or earlier)?
The code:
public class BaseEntity
{
public int Id { get; set; }
}
public class User:BaseEntity
{
public virtual ICollection<UserRole> UserRoles{get;set;}
}
public class UserRole:BaseEntity
{
public ICollection<PermissionRecord> PermissionRecords { get; set; }
}
public class PermissionRecord : BaseEntity
{
public PermissionRecordPrivileges Privileges { get; set; }
}
public class PermissionRecordPrivileges : BaseEntity
{
public bool Create { get; set; }
public bool Read { get; set; }
public bool Update { get; set; }
public bool Delete { get; set; }
}

Answer 1

Your terminology "create a table" is a bit confusing. A table is a database object. I assume you mean a data structure client-side. To collect a User's privileges you can do:
var privileges = (from u in context.Users
from ur in u.UserRoles
from pr in ur.PermissionRecords
where u.UserId = id
select ur.Privileges).Distinct();
where id is a variable containing a User's id.

Answer 2

You have to create your entity model classes like below.
Note : Need to maintain Conventions(naming and singular/plural) when you use Entity framework Code First.Like below :
Entity Models
public class UserRole
{
public int Id { get; set; }
public virtual ICollection<PermissionRecord> PermissionRecords { get; set; }
}
public class PermissionRecord
{
public int Id { get; set; }
public virtual PermissionRecordPrivilege PermissionRecordPrivilege { get; set; }
}
public class PermissionRecordPrivilege
{
public int Id { get; set; }
public bool Create { get; set; }
public bool Read { get; set; }
public bool Update { get; set; }
public bool Delete { get; set; }
}
Your Tables Should like below :
Tables
PermissionRecordPrivileges
Id int NotNull
Create bit AllowNull
Read bit AllowNull
Update bit AllowNull
Delete bit AllowNull
PermissionRecords
Id int NotNull
PermissionRecordPrivilege_Id int NotNull
UserRole_Id int NotNull
UserRoles
Id int NotNull
I hope this will help to you.Good Luck.