add user

University/DatabaseImplement/Implements/DisciplineStorage.cs

@@ -66,7 +66,7 @@ namespace UniversityDatabaseImplement.Implements
             var element = context.Disciplines.FirstOrDefault(rec => rec.Id == model.Id);
             if (element != null)
             {
-                context.ExaminationResults.Remove(element);
+                context.Disciplines.Remove(element);
                 context.SaveChanges();
                 return element.GetViewModel;
             }

University/DatabaseImplement/Implements/UserStorage.cs

@@ -0,0 +1,78 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDatabaseImplement.Models;
+
+namespace UniversityDatabaseImplement.Implements
+{
+    internal class UserStorage : IUserStorage
+    {
+        public List<UserViewModel> GetFullList()
+        {
+            using var context = new UniversityDatabase();
+            return context.Users.Select(x => x.GetViewModel).ToList();
+        }
+        public List<UserViewModel> GetFilteredList(UserSearchModel model)
+        {
+            using var context = new UniversityDatabase();
+            return context.Users
+                .Where(x => (
+                        (!model.Id.HasValue || x.Id == model.Id) &&
+                        (string.IsNullOrEmpty(model.Login) || x.Login.Contains(model.Login)) &&
+                        (string.IsNullOrEmpty(model.Password) || x.Password.Contains(model.Password))
+                    )
+                )
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public UserViewModel? GetElement(UserSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Login) && string.IsNullOrEmpty(model.Password) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            return context.Users
+            .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Login) && x.Login == model.Login) ||
+                                 (!string.IsNullOrEmpty(model.Password) && x.Password == model.Password) ||
+                                 (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public UserViewModel? Insert(UserBindingModel model)
+        {
+            var newUser = User.Create(model);
+            if (newUser == null)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            context.Users.Add(newUser);
+            context.SaveChanges();
+            return newUser.GetViewModel;
+        }
+        public UserViewModel? Update(UserBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var user = context.Users.FirstOrDefault(x => x.Id == model.Id);
+            if (user == null)
+            {
+                return null;
+            }
+            user.Update(model);
+            context.SaveChanges();
+            return user.GetViewModel;
+        }
+        public UserViewModel? Delete(UserBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var element = context.Users.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Users.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

University/DatabaseImplement/Models/User.cs

@@ -0,0 +1,62 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class User : IUserModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public string Surname { get; set; } = string.Empty;
+        [Required]
+        public string PhoneNumber { get; set; } = string.Empty;
+        [Required]
+        public string Position { get; set; } = string.Empty;
+        [Required]
+        public string Login { get; set; } = string.Empty;
+        [Required]
+        public string Password { get; set; } = string.Empty;
+        public static User Create(UserBindingModel model)
+        {
+            return new User
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Surname = model.Surname,
+                PhoneNumber = model.PhoneNumber,
+                Position = model.Position,
+                Login = model.Login,
+                Password = model.Password
+            };
+        }
+
+        public void Update(UserBindingModel model)
+        {
+            if (model == null) return;
+
+            Id = model.Id;
+            Name = model.Name;
+            Surname = model.Surname;
+            PhoneNumber = model.PhoneNumber;
+            Position = model.Position;
+            Login = model.Login;
+            Password = model.Password;
+        }
+
+        public UserViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Surname = Surname,
+            PhoneNumber = PhoneNumber,
+            Position = Position,
+            Login = Login,
+            Password = Password
+        };
+    }
+}

University/DatabaseImplement/UniversityDatabase.cs

@@ -23,5 +23,6 @@ namespace UniversityDatabaseImplement
         public virtual DbSet<StatementStudent> StatementStudents { set; get; }
         public virtual DbSet<Student> Students { set; get; }
         public virtual DbSet<StudentExaminationResult> StudentExaminationResults { set; get; }
+        public virtual DbSet<User> Users { set; get; }
     }
 }

University/UniversityContracts/BindingModels/UserBindingModel.cs

@@ -0,0 +1,14 @@
+using UniversityDataModels.Models;
+namespace UniversityContracts.BindingModels
+{
+    public class UserBindingModel : IUserModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = String.Empty;
+        public string Surname { get; set; } = String.Empty;
+        public string PhoneNumber { get; set; } = String.Empty;
+        public string Position { get; set; } = String.Empty;
+        public string Login { get; set; } = String.Empty;
+        public string Password { get; set; } = String.Empty;
+    }
+}

University/UniversityContracts/BuisnessLogicContracts/IUserLogic.cs

@@ -0,0 +1,15 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.ViewModels;
+
+namespace UniversityContracts.BuisnessLogicContracts
+{
+    public interface IUserLogic
+    {
+        List<UserViewModel>? ReadList(UserSearchModel? model);
+        UserViewModel? ReadElement(UserSearchModel model);
+        bool Create(UserBindingModel model);
+        bool Update(UserBindingModel model);
+        bool Delete(UserBindingModel model);
+    }
+}

University/UniversityContracts/SearchModels/UserSearchModel.cs

@@ -0,0 +1,9 @@
+namespace UniversityContracts.SearchModels
+{
+    public class UserSearchModel
+    {
+        public int? Id { get; set; }
+        public string? Login { get; set; }
+        public string? Password { get; set; }
+    }
+}

University/UniversityContracts/StoragesContracts/IUserStorage.cs

@@ -0,0 +1,16 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.ViewModels;
+
+namespace UniversityContracts.StoragesContracts
+{
+    public interface IUserStorage
+    {
+        List<UserViewModel> GetFullList();
+        List<UserViewModel> GetFilteredList(UserSearchModel model);
+        UserViewModel? GetElement(UserSearchModel model);
+        UserViewModel? Insert(UserBindingModel model);
+        UserViewModel? Update(UserBindingModel model);
+        UserViewModel? Delete(UserBindingModel model);
+    }
+}

University/UniversityContracts/ViewModels/UserViewModel.cs

@@ -0,0 +1,14 @@
+using UniversityDataModels.Models;
+namespace UniversityContracts.ViewModels
+{
+    public class UserViewModel : IUserModel
+    {
+        public int Id { get; set; }
+        public string Name { get; set; } = String.Empty;
+        public string Surname { get; set; } = String.Empty;
+        public string PhoneNumber { get; set; } = String.Empty;
+        public string Position { get; set; } = String.Empty;
+        public string Login { get; set; } = String.Empty;
+        public string Password { get; set; } = String.Empty;
+    }
+}

University/UniversityDataModels/Enums/MarkType.cs

@@ -1,10 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace UniversityDataModels.Enums
+namespace UniversityDataModels.Enums
 {
     public enum MarkType
     {

University/UniversityDataModels/Models/IUserModel.cs

@@ -0,0 +1,18 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace UniversityDataModels.Models
+{
+    public interface IUserModel : IId
+    {
+        string Name { get; }
+        string Surname { get; }
+        string PhoneNumber { get; }
+        string Position { get; }
+        string Login { get; }
+        string Password { get; }
+    }
+}