SocialPackage.Infrastructure.EfDbContext.OnModelCreating C# (CSharp) Method

        protected override void OnModelCreating(DbModelBuilder modelBuilder)
        {
            base.OnModelCreating(modelBuilder);

            modelBuilder.Entity<User>().HasOptional(e => e.Limit);

            modelBuilder.Entity<User>()
                .HasMany(u => u.Roles).WithMany(r => r.Users)
                .Map(mc =>
                {
                    mc.MapLeftKey("UserId");
                    mc.MapRightKey("RoleId");
                    mc.ToTable("UsersRoles");
                });
        }