Реализовал хранилище бд для пользователя

Polyclinic/PolyclinicDatabaseImplement/Implements/UserStorage.cs

@@ -1,7 +1,10 @@
-using PolyclinicContracts.BindingModels;
+using Microsoft.IdentityModel.Tokens;
+using PolyclinicContracts.BindingModels;
 using PolyclinicContracts.SearchModels;
 using PolyclinicContracts.StoragesContracts;
 using PolyclinicContracts.ViewModels;
+using PolyclinicDatabaseImplement.Models;
+using SecuritySystemDatabaseImplement;
 
 namespace PolyclinicDatabaseImplement.Implements
 {
@@ -9,32 +12,65 @@ namespace PolyclinicDatabaseImplement.Implements
     {
         public UserViewModel? Delete(UserBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new PolyclinicDatabase();
+            var element = context.Users.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Users.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
         }
 
         public UserViewModel? GetElement(UserSearchModel model)
         {
-            throw new NotImplementedException();
+            return GetFilteredList(model).FirstOrDefault();
         }
 
         public List<UserViewModel> GetFilteredList(UserSearchModel model)
         {
-            throw new NotImplementedException();
+            var elements = GetFullList();
+            foreach (var prop in model.GetType().GetProperties())
+            {
+                if (model.GetType().GetProperty(prop.Name)?.GetValue(model, null) != null)
+                {
+                    elements = elements.Where(x => x.GetType().GetProperty(prop.Name)?.GetValue(x, null) == model.GetType().GetProperty(prop.Name)?.GetValue(model, null)).ToList();
+                }
+            } 
+            return elements;
         }
 
         public List<UserViewModel> GetFullList()
         {
-            throw new NotImplementedException();
+            using var context = new PolyclinicDatabase();
+            return context.Users.Select(x => x.GetViewModel).ToList();
         }
 
         public UserViewModel? Insert(UserBindingModel model)
         {
-            throw new NotImplementedException();
+            var element = User.Create(model);
+            if (element == null)
+            {
+                return null;
+            }
+            using var context = new PolyclinicDatabase();
+            context.Users.Add(element);
+            context.SaveChanges();
+            return element.GetViewModel;
         }
 
         public UserViewModel? Update(UserBindingModel model)
         {
-            throw new NotImplementedException();
+            using var context = new PolyclinicDatabase();
+            var element = context.Users.FirstOrDefault(x => x.Id == model.Id);
+            if (element == null)
+            {
+                return null;
+            }
+            element.Update(model);
+            context.SaveChanges();
+            return element.GetViewModel;
         }
     }
 }