xSaherElmIds/DbContext/XIdentityDbContext.cs

using Microsoft.AspNetCore.Identity;
using Microsoft.AspNetCore.Identity.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore;
using xIdentityModels;
using xIdentityModels.Models;
using xIdentityModels.Navigations;

namespace xIds.DbContext
{
    public class XIdentityDbContext : IdentityDbContext
    {
        //
        #region Props/DbSets ...
        public DbSet<XToken> Tokens { get; set; }
        public DbSet<XDevice> Devices { get; set; }
        public DbSet<XProfileImage> Avatars { get; set; }
        public DbSet<XBannedDevice> BannedDevices { get; set; }
        public DbSet<XFriendshipFollower> Followers { get; set; }
        public DbSet<XFriendshipFollowing> Followings { get; set; }
        public DbSet<XVerificationRequest> VerificationRequests { get; set; }
        #endregion

        public XIdentityDbContext(DbContextOptions<XIdentityDbContext> options) : base(options)
        {
            //
            try
            {
                Database.EnsureCreated();
                Database.Migrate();
            }
            catch { }
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            //
            base.OnModelCreating(modelBuilder);

            //
            // Fix XUser GUID Generator on Add ...
            modelBuilder
                .Entity<IdentityUser>()
                .Property(e => e.Id)
                .ValueGeneratedOnAdd();

            //
            // Handle Role List ...
            modelBuilder.Entity<XUser>(u =>
            {
                u.HasMany(x => x.Roles)
                    .WithOne()
                    .HasForeignKey(ur => ur.UserId)
                    .IsRequired();
            });
        }
    }
}