removed devexpress and refactoring

UserService.DatabaseLayer/DataModels/Node.cs

@@ -1,4 +1,4 @@
-#nullable enable
+using System;
 using System.Collections.Generic;
 using System.ComponentModel.DataAnnotations;
 
@@ -11,7 +11,6 @@ namespace UserService.DatabaseLayer.DataModels
 
     public class SecurityGroup : Member
     {
-
     }
 
     public class User : Member
@@ -23,8 +22,6 @@ namespace UserService.DatabaseLayer.DataModels
         public string FullName => $"{FirstName} {LastName}";
 
         public IEnumerable<UserMember> MemberOf { get; set; } = new List<UserMember>();
-
-        public User Clone() => (User)MemberwiseClone();
     }
 
     public class UserMember
@@ -45,7 +42,7 @@ namespace UserService.DatabaseLayer.DataModels
         public ICollection<UserMember> Members { get; set; } = new List<UserMember>();
     }
 
-    public abstract class Node
+    public abstract class Node : ICloneable
     {
         public int Id { get; set; }
         [Required] public string CommonName { get; set; } = null!;
@@ -58,5 +55,8 @@ namespace UserService.DatabaseLayer.DataModels
         {
             return $"[{GetType().Name}] {Id:D5} {CommonName}";
         }
+
+        /// <inheritdoc />
+        public virtual object Clone() => MemberwiseClone();
     }
 }

UserService.DatabaseLayer/Repository/BaseRepository.cs

@@ -1,6 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Linq.Expressions;
+using System.Runtime.CompilerServices;
+using System.Security.Cryptography.X509Certificates;
 using System.Threading;
 using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore;
@@ -8,7 +10,7 @@ using UserService.DatabaseLayer.DataModels;
 
 namespace UserService.DatabaseLayer.Repository
 {
-    public class BaseRepository<T> where T : class
+    public class BaseRepository<T> where T : Node
     {
         private readonly Func<UserServiceDbContext, DbSet<T>> _context;
 
@@ -20,7 +22,7 @@ namespace UserService.DatabaseLayer.Repository
         public async Task<IReadOnlyList<T>> GetAllAsync(CancellationToken token = default)
         {
             await using var db = new UserServiceDbContext();
-            return await _context(db).ToListAsync(token);
+            return await _context(db).Include(x => x.Parent).ToListAsync(token);
         }
 
         public async Task<T?> GetAsync(Expression<Func<T, bool>> predicate, CancellationToken token = default)