如何在 ASP.NET Core 5 中的 IdentityUser 和 IdentityRole 之間使用隱式多對多

Question

我有這兩個實體。

public class ApplicationUser : IdentityUser<int>
    {
        public int DepartmentId { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
        public string NationalCode { get; set; }
        public DateTimeOffset DateCreated { get; set; } = DateTimeOffset.Now;
        public DateTimeOffset DateModified { get; set; } = DateTimeOffset.Now;
        public CorporateTitle CorporateTitle { get; set; }

        public Department Department { get; set; }
        public ICollection<ApplicationRole> Roles { get; set; } //* instead of IdetityUserRole

  public class ApplicationRole : IdentityRole<int>
    {
        public string DisplayName { get; set; }
        public string Description { get; set; }
        public ICollection<ApplicationUser> Users { get; set; } //* instead of IdetityUserRole

    }

我想自定義這兩個實體，例如覆蓋導航屬性。 我不想將 IdentityUserRole Class 用於這些類之間的多對多關系。

我應該如何在 Identity Core 中為這種類型的隱式多對多編寫配置？

 builder.Entity<ApplicationUser>()
                .HasMany(appUser => appUser.Roles)
                .WithMany(role => role.Users)
                .UsingEntity<>(); // here I don't know how to config this relationship.

Answer 1

這是此場景的配置需求。 （跳過導航 EF Core 5）

 builder.Entity<ApplicationUser>()
                        .HasMany(u => u.Roles)
                        .WithMany(r => r.Users)
                        .UsingEntity<IdentityUserRole<int>>
                        (au => au.HasOne<ApplicationRole>().WithMany(role => role.UserRoles).HasForeignKey(u=> u.RoleId),
                        au => au.HasOne<ApplicationUser>().WithMany(user => user.UserRoles).HasForeignKey(r=> r.UserId));

完整的源代碼： https://github.com/ArminShoeibi/ImplicitManyToManyIdentityCore