Db

Data/RemoteData/RemoteDataBase/DAO/Group.cs

@@ -0,0 +1,10 @@
+
+namespace Demo.Data.RemoteData.RemoteDataBase.DAO 
+{
+    public class GroupDao {
+
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public IEnumerable<UserDao> User { get; set; }
+    }
+}

Data/RemoteData/RemoteDataBase/DAO/Presence.cs

@@ -0,0 +1,12 @@
+
+namespace Demo.Data.RemoteData.RemoteDataBase.DAO {
+
+    public class PresenceDao {
+
+        public Guid UserGuid { get; set; }
+        public bool IsAttedance { get; set; }
+        public DateOnly Date { get; set; }
+        public int LessonNumber { get; set; }
+        public UserDao userDao { get; set; }
+    }
+}

Data/RemoteData/RemoteDataBase/DAO/User.cs

@@ -0,0 +1,12 @@
+using System.Text.RegularExpressions;
+
+namespace Demo.Data.RemoteData.RemoteDataBase.DAO
+{
+    public class UserDao
+    {
+        public string FIO { get; set; }
+        public Guid Guid {get; set; }
+        public int GroupID {get; set;}
+        public GroupDao Group {get; set; }
+    }
+}

Data/RemoteData/RemoteDataBase/RemoteDatabaseContext.cs

@@ -0,0 +1,35 @@
+using Demo.Data.RemoteData.RemoteDataBase.DAO;
+using Microsoft.EntityFrameworkCore;
+
+namespace Data.RemoteData.RemoteDataBase.DAO
+{
+
+    public class RemoteDatabaseContext: DbContext {
+
+        public DbSet<GroupDao> Groups { get; set; }
+        public DbSet<UserDao> Users { get; set; }
+        public DbSet<PresenceDao> PresenceDaos { get; set; }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            optionsBuilder.UseNpgsql("Host=localhost;" + 
+            "Port=5432;" + 
+            "Username=postgres;" + 
+            "Password=1234;" + 
+            "Database=postgres");
+        }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder) {
+            modelBuilder.Entity<GroupDao>().HasKey(group => group.Id);
+            modelBuilder.Entity<GroupDao>().Property(group => group.Id).ValueGeneratedOnAdd();
+            modelBuilder.Entity<UserDao>().HasKey(user => user.Guid);
+            modelBuilder.Entity<UserDao>().Property(user => user.Guid).ValueGeneratedOnAdd();
+            modelBuilder.Entity<PresenceDao>().HasKey(presence => new {
+                presence.UserGuid,
+                presence.Date,
+                presence.IsAttedance,
+                presence.LessonNumber
+            });
+        }
+    }
+}

Data/Repository/GroupRepositoryImpl.cs

@@ -5,54 +5,60 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Data.RemoteData.RemoteDataBase.DAO;
+using Demo.Data.RemoteData.RemoteDataBase.DAO;
 
 namespace Demo.Data.Repository
 {
-    public class GroupRepositoryImpl:IGroupRepository
+    public class SQLGroupRepositoryImpl : IGroupRepository
     {
-        public GroupRepositoryImpl() {
 
-            GetAllGroups = LocalStaticData.groups;
+        private readonly RemoteDatabaseContext _remoteDatabaseContext;
+
+        public SQLGroupRepositoryImpl(RemoteDatabaseContext remoteDatabaseContext) {
+
+            _remoteDatabaseContext = remoteDatabaseContext;
+            GetAllGroups = _remoteDatabaseContext.Groups.Select(x => new GroupLocalEntity{Name = x.Name, Id = x.Id}).ToList();
         }
         public List<GroupLocalEntity> GetAllGroups
         { get; set; }
 
         public List<GroupLocalEntity> GetAllGroup()
         {
-            return GetAllGroups;
+            return _remoteDatabaseContext.Groups.Select(x => new GroupLocalEntity{Name = x.Name, Id = x.Id}).ToList();
         }
 
         public GroupLocalEntity? UpdateGroupName(GroupLocalEntity groupUpdateLocalEntity) {
 
-            int index = GetAllGroups.FindIndex(x => x.Id == groupUpdateLocalEntity.Id);
-            if (index == -1) return null;
-            GetAllGroups[index].Name = groupUpdateLocalEntity.Name;
-            return GetAllGroups[index];
+            var group = _remoteDatabaseContext.Groups.FirstOrDefault(x => x.Id == groupUpdateLocalEntity.Id);
+            if (group == null){
+                return null;
             }
 
-        public GroupLocalEntity? CreateGroup(GroupLocalEntity groupCreateLocalEntity) {
+            group.Name = groupUpdateLocalEntity.Name;
+            _remoteDatabaseContext.SaveChanges();
+            return new GroupLocalEntity{Name = group.Name, Id = group.Id};
+        }
 
-            if (GetAllGroups.Any(x => x.Id == groupCreateLocalEntity.Id)) return null;
+        public GroupLocalEntity? CreateGroup(string Name) {
             
-            GetAllGroups.Add(groupCreateLocalEntity);
-            return groupCreateLocalEntity;
+            GroupDao groupDAO = new GroupDao{Name = Name};
+            var result = _remoteDatabaseContext.Groups.Add(groupDAO);
+            _remoteDatabaseContext.SaveChanges();
+            return new GroupLocalEntity{Name = groupDAO.Name, Id = groupDAO.Id};
         }
 
         public bool RemoveGroupById(int groupID)
         {
-            GroupLocalEntity? groupLocal = GetAllGroups
-                .Where(x => x.Id == groupID).FirstOrDefault();
-            if (groupLocal == null) return false;
-
-            return GetAllGroups.Remove(groupLocal);
+            var groupDao = _remoteDatabaseContext.Groups.FirstOrDefault(x => x.Id == groupID);
+            _remoteDatabaseContext.Groups.Remove(groupDao);
+            _remoteDatabaseContext.SaveChanges();
+            return true;
         }
 
-        public GroupLocalEntity? GetGroupById(int groupID) {
-            GroupLocalEntity? groupLocal = GetAllGroups
-                    .Where(x => x.Id == groupID).FirstOrDefault();
-            if (groupLocal == null) return null;
-
-            return groupLocal;
+        public GroupLocalEntity? GetGroupById(int groupId) {
+            var groupDao = _remoteDatabaseContext.Groups.FirstOrDefault(x => x.Id == groupId);
+            return new GroupLocalEntity{Name = groupDao.Name, Id = groupDao.Id};
         }
     }
 }

Data/Repository/IGroupRepository.cs

@@ -13,6 +13,6 @@ namespace Demo.Data.Repository
         bool RemoveGroupById(int groupID);
         GroupLocalEntity? UpdateGroupName(GroupLocalEntity updatedGroup);
         GroupLocalEntity? GetGroupById(int groupID);
-        GroupLocalEntity? CreateGroup(GroupLocalEntity newGroup);
+        GroupLocalEntity? CreateGroup(string Name);
     }
 }

Data/Repository/IPresenceRepository.cs

@@ -7,7 +7,7 @@ namespace Demo.Data.Repository
         List<PresenceLocalEntity> GetPresences();
         List<PresenceLocalEntity> GetPresencesByGroup();
         List<PresenceLocalEntity> GetPresencesByGroupAndDate();
-        public List<PresenceLocalEntity> SavePresence(List<PresenceLocalEntity> presenceLocalEntities);
+        List<PresenceLocalEntity> GeneratePresence(List<PresenceLocalEntity> presenceLocalEntities);
         void UpdateAttedance(int firstLesson, int lastLesson, DateOnly date, Guid UserGuid);
     }
 }

Data/Repository/PresenceRepositoryImpl.cs

@@ -1,37 +1,66 @@
+using Data.RemoteData.RemoteDataBase.DAO;
+using Demo.Data.RemoteData.RemoteDataBase.DAO;
 using Demo.domain.Models;
 
 namespace Demo.Data.Repository
 {
-    public class PresenceRepositoryImpl : IPresenceRepository
+    public class SQLPresenceRepositoryImpl : IPresenceRepository
     {
-        public List<PresenceLocalEntity> GetAllPresences = new List<PresenceLocalEntity>();
+
+        private readonly RemoteDatabaseContext _remoteDatabaseContext;
+
+        public SQLPresenceRepositoryImpl(RemoteDatabaseContext remoteDatabaseContext){
+            _remoteDatabaseContext = remoteDatabaseContext;
+            GetAllPresence = _remoteDatabaseContext.PresenceDaos.Select(x => new PresenceLocalEntity{UserGuid = x.UserGuid, Date = x.Date, LessonNumber = x.LessonNumber, IsAttedance = x.IsAttedance}).ToList();
+        }
+
+        public List<PresenceLocalEntity> GetAllPresence = new List<PresenceLocalEntity>{};
 
         public List<PresenceLocalEntity> GetPresences()
         {
-            return GetAllPresences;
+            return _remoteDatabaseContext.PresenceDaos.Select(x => new PresenceLocalEntity{UserGuid = x.UserGuid, Date = x.Date, LessonNumber = x.LessonNumber, IsAttedance = x.IsAttedance}).ToList();
         }
 
         public List<PresenceLocalEntity> GetPresencesByGroup()
         {
-            return GetAllPresences;
+            return _remoteDatabaseContext.PresenceDaos.Select(x => new PresenceLocalEntity{UserGuid = x.UserGuid, Date = x.Date, LessonNumber = x.LessonNumber, IsAttedance = x.IsAttedance}).ToList();
         }
 
         public List<PresenceLocalEntity> GetPresencesByGroupAndDate()
         {
-            return GetAllPresences;
+            return _remoteDatabaseContext.PresenceDaos.Select(x => new PresenceLocalEntity{UserGuid = x.UserGuid, Date = x.Date, LessonNumber = x.LessonNumber, IsAttedance = x.IsAttedance}).ToList();
         }
 
-        public List<PresenceLocalEntity> SavePresence(List<PresenceLocalEntity> presenceLocalEntities){
-            GetAllPresences.AddRange(presenceLocalEntities);
+        public List<PresenceLocalEntity> GeneratePresence(List<PresenceLocalEntity> presenceLocalEntities)
+        {
+            var presences = presenceLocalEntities.Select(x => new PresenceDao
+            {
+                UserGuid = x.UserGuid,
+                IsAttedance = x.IsAttedance,
+                LessonNumber = x.LessonNumber,
+                Date = x.Date,
+                userDao = _remoteDatabaseContext.Users.FirstOrDefault(u => u.Guid == x.UserGuid)
+            }).ToList();
+
+            _remoteDatabaseContext.PresenceDaos.AddRange(presences);
+            _remoteDatabaseContext.SaveChanges();
+
             return presenceLocalEntities;
         }
 
         public void UpdateAttedance(int firstLesson, int lastLesson, DateOnly date, Guid UserGuid){
-            foreach(PresenceLocalEntity presence in GetAllPresences.Where(x => x.LessonNumber >= firstLesson && x.LessonNumber <= lastLesson && x.Date == date)){
-                if (presence.UserGuid == UserGuid){
+            var presencesToUpdate = _remoteDatabaseContext.PresenceDaos
+            .Where(x => x.LessonNumber >= firstLesson 
+                        && x.LessonNumber <= lastLesson 
+                        && x.Date == date 
+                        && x.UserGuid == UserGuid)
+            .ToList();
+
+            foreach(var presence in presencesToUpdate){
                 presence.IsAttedance = false;
             }
-            }
+
+            _remoteDatabaseContext.SaveChanges();
         }
     }
 } 

Data/Repository/UserRepositoryImpl.cs

@@ -1,3 +1,4 @@
+using Data.RemoteData.RemoteDataBase.DAO;
 using Demo.Data.LocalData;
 using Demo.domain.Models;
 using System;
@@ -8,43 +9,46 @@ using System.Threading.Tasks;
 
 namespace Demo.Data.Repository
 {
-    public class UserRepositoryImpl:IUserRepository
+    public class SQLUserRepositoryImpl:IUserRepository
     {
-        public UserRepositoryImpl() {
 
-            GetAllUsers = LocalStaticData.users;
+        private readonly RemoteDatabaseContext _remoteDatabaseContext;
+        
+        public SQLUserRepositoryImpl(RemoteDatabaseContext remoteDatabaseContext) {
+            _remoteDatabaseContext = remoteDatabaseContext;
+            GetAllUsers = _remoteDatabaseContext.Users.Select(x => new UserLocalEntity{FIO = x.FIO, Guid = x.Guid, GroupID = x.GroupID}).ToList();
         }
         public List<UserLocalEntity> GetAllUsers
         { get; set; }
 
         public List<UserLocalEntity> GetAllUser()
         {
-            return GetAllUsers;
+            return _remoteDatabaseContext.Users.Select(x => new UserLocalEntity{FIO = x.FIO, Guid = x.Guid, GroupID = x.GroupID}).ToList();
         }
 
         public bool RemoveUserByGuid(Guid userGuid)
         {
-            UserLocalEntity? userLocal = GetAllUsers
-                .Where(x => x.Guid == userGuid).FirstOrDefault();
-            if (userLocal == null) return false;
-
-            return GetAllUsers.Remove(userLocal);
+            var userDAO = _remoteDatabaseContext.Users.FirstOrDefault(x => x.Guid == userGuid);
+            _remoteDatabaseContext.Users.Remove(userDAO);
+            _remoteDatabaseContext.SaveChanges();
+            return true;
         }
 
         public UserLocalEntity? GetUserByGuid(Guid userGuid) {
-            UserLocalEntity? userLocal = GetAllUsers
-                    .Where(x => x.Guid == userGuid).FirstOrDefault();
-            if (userLocal == null) return null;
-
-            return userLocal;
+            var userDAO = _remoteDatabaseContext.Users.FirstOrDefault(x => x.Guid == userGuid);
+            return new UserLocalEntity{FIO = userDAO.FIO,  GroupID = userDAO.GroupID, Guid = userGuid};
         }
 
         public UserLocalEntity? UpdateUser(UserLocalEntity userUpdateLocalEntity) {
-            int index = GetAllUsers.FindIndex(x => x.Guid == userUpdateLocalEntity.Guid);
-            if (index == -1) return null;
-            GetAllUsers[index].FIO = userUpdateLocalEntity.FIO;
-            GetAllUsers[index].GroupID = userUpdateLocalEntity.GroupID;
-            return GetAllUsers[index];
+            var user = _remoteDatabaseContext.Users.FirstOrDefault(x => x.Guid == userUpdateLocalEntity.Guid);
+            if (user == null){
+                return null;
+            }
+
+            user.FIO = userUpdateLocalEntity.FIO;
+            user.GroupID = userUpdateLocalEntity.GroupID;
+            _remoteDatabaseContext.SaveChanges();
+            return new UserLocalEntity{FIO = user.FIO, Guid = user.Guid, GroupID = user.GroupID};
         }
     }
 }

Demo.csproj

@@ -1,18 +1,20 @@
 <Project Sdk="Microsoft.NET.Sdk">
-
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>net8.0</TargetFramework>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
   </PropertyGroup>
-
   <ItemGroup>
     <Folder Include="Data\RemoteData\" />
   </ItemGroup>
-
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.10" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.10">
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+      <PrivateAssets>all</PrivateAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="8.0.10" />
   </ItemGroup>
-
 </Project>

Domain/UseCase/GroupUseCase.cs

@@ -11,9 +11,9 @@ namespace Demo.Domain.UseCase
     public class GroupUseCase:IGroupUseCase
     {
 
-        private IGroupRepository _repositoryGroupImpl;
+        private readonly IGroupRepository _repositoryGroupImpl;
         
-        public GroupUseCase(IGroupRepository groupRepository)
+        public GroupUseCase(IGroupRepository groupRepository, IUserRepository repositoryUserImpl)
         {
             _repositoryGroupImpl = groupRepository;
         }
@@ -46,19 +46,17 @@ namespace Demo.Domain.UseCase
             return _repositoryGroupImpl.RemoveGroupById(groupId);
         }
 
-        public bool CreateGroup(Group group) {
+        public bool CreateGroup(string Name) {
 
-            GroupLocalEntity? groupLocalEntity = new GroupLocalEntity{Id = group.Id, Name = group.Name};
-            _repositoryGroupImpl.CreateGroup(groupLocalEntity);
-            if (groupLocalEntity != null) return false;
+            _repositoryGroupImpl.CreateGroup(Name);
             return true;
         }
 
         public Group GetGroupById(int groupId) {
 
             GroupLocalEntity? groupLocalEntity = _repositoryGroupImpl.GetGroupById(groupId);
-            if (groupLocalEntity == null) throw new Exception("");
-            return new Group { Id = groupLocalEntity.Id, Name = groupLocalEntity.Name };
+            if (groupLocalEntity == null) throw new Exception("bello");
+            return new Group{Id = groupId, Name = groupLocalEntity.Name};
         }
     }
 }

Domain/UseCase/IGroupUseCase.cs

@@ -10,9 +10,9 @@ namespace Demo.Domain.UseCase
     public interface IGroupUseCase
     {
         List<Group> GetAllGroups();
-        bool RemoveGroupById(int groupID);
+        bool RemoveGroupById(int groupId);
         Group UpdateGroupName(Group group);
         Group GetGroupById(int groupID);
-        bool CreateGroup(Group group);
+        bool CreateGroup(string Name);
     }
 }

Domain/UseCase/PresenceUseCase.cs

@@ -96,7 +96,7 @@ namespace Demo.Domain.UseCase
                 Date = x.Date
             }).ToList();
 
-            _repositoryPresenceImpl.SavePresence(presenceLocalEntity);
+            _repositoryPresenceImpl.GeneratePresence(presenceLocalEntity);
 
             return true;
         }

Domain/UseCase/UserUseCase.cs

@@ -8,7 +8,7 @@ using System.Threading.Tasks;
 
 namespace Demo.Domain.UseCase
 {
-    public class UserUseCase:IUserUseCase
+    public class UserUseCase : IUserUseCase
     {
         private  readonly IUserRepository _repositoryUserImpl;
         private  readonly IGroupRepository _repositoryGroupImpl;
@@ -20,36 +20,61 @@ namespace Demo.Domain.UseCase
         }
 
         public List<Group> GetAllGroups() => _repositoryGroupImpl.GetAllGroup()
-            .Select(it => new Group { Id  = it.Id, Name = it.Name}).ToList();
+        .Select(it => new Group{Id = it.Id, Name = it.Name}).ToList();
+
         public List<User> GetAllUsers() => _repositoryUserImpl.GetAllUser()
         .Join(_repositoryGroupImpl.GetAllGroup(),
         user => user.GroupID,
         group => group.Id,
-            (user, group) => 
-            new User { FIO = user.FIO, 
+        (user, group) => new User{
+            FIO = user.FIO,
             Guid = user.Guid, 
-                Group = new Group {Id = group.Id, Name = group.Name } }
+            Group = new Group{
+                Id = group.Id, 
+                Name = group.Name}
+            }
         ).ToList();
 
         public User GetUserByGuid(Guid userGuid) {
             UserLocalEntity? userLocalEntity = _repositoryUserImpl.GetUserByGuid(userGuid);
-            if (userLocalEntity == null) throw new Exception("");
-            Group? group = GetAllGroups().FirstOrDefault(it => it.Id == userLocalEntity!.GroupID);
-            if (group == null) throw new Exception("");
-            return new User { FIO = userLocalEntity.FIO, Guid = userLocalEntity.Guid, Group = new Group { Id = group.Id, Name = group.Name }};
-            
+            if (userLocalEntity == null) throw new Exception("bello");
+            Group? group = GetAllGroups().FirstOrDefault(it => userLocalEntity.GroupID == it.Id);
+            if (group == null) throw new Exception("bello");
+            return new User{
+                FIO = userLocalEntity.FIO,
+                Guid = userLocalEntity.Guid,
+                Group = new Group{
+                    Id = group.Id,
+                    Name = group.Name}
+            };   
         }
 
         public bool RemoveUserByGuid(Guid userGuid) {
             return _repositoryUserImpl.RemoveUserByGuid(userGuid);
         }
         public User UpdateUser(User user) {
-            UserLocalEntity userLocalEnity = new UserLocalEntity { FIO = user.FIO, GroupID = user.Group.Id, Guid = user.Guid };
-            UserLocalEntity? result = _repositoryUserImpl.UpdateUser(userLocalEnity);
-            if (result == null) throw new Exception("");
-            Group? group = GetAllGroups().FirstOrDefault(it => it.Id == result!.GroupID);
-            if (group == null) throw new Exception("");
-            return new User { FIO = user.FIO, Guid = user.Guid,  Group = group};
+            UserLocalEntity userLocalEntity = new UserLocalEntity
+            {
+                FIO = user.FIO,
+                Guid = user.Guid,
+                GroupID = user.Group.Id
+            };
+            UserLocalEntity? result = _repositoryUserImpl.UpdateUser(userLocalEntity);
+            if (result == null)
+            {
+                throw new Exception("");
+            }
+            Group? group = GetAllGroups().FirstOrDefault(it => result.GroupID == it.Id);
+            if (group == null)
+            {
+                throw new Exception("");
+            }
+            return new User
+            {
+                FIO = result.FIO,
+                Guid = result.Guid,
+                Group = group
+            };
         }   
     }
 }

Migrations/20241024202926_InitialCreate.Designer.cs

@@ -0,0 +1,118 @@
+// <auto-generated />
+using System;
+using Data.RemoteData.RemoteDataBase.DAO;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Demo.Migrations
+{
+    [DbContext(typeof(RemoteDatabaseContext))]
+    [Migration("20241024202926_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.GroupDao", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Groups");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.PresenceDao", b =>
+                {
+                    b.Property<Guid>("UserGuid")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateOnly>("Date")
+                        .HasColumnType("date");
+
+                    b.Property<bool>("IsAttedance")
+                        .HasColumnType("boolean");
+
+                    b.Property<int>("LessonNumber")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("userDaoGuid")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("UserGuid", "Date", "IsAttedance", "LessonNumber");
+
+                    b.HasIndex("userDaoGuid");
+
+                    b.ToTable("PresenceDaos");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.UserDao", b =>
+                {
+                    b.Property<Guid>("Guid")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("GroupID")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Guid");
+
+                    b.HasIndex("GroupID");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.PresenceDao", b =>
+                {
+                    b.HasOne("Demo.Data.RemoteData.RemoteDataBase.DAO.UserDao", "userDao")
+                        .WithMany()
+                        .HasForeignKey("userDaoGuid")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("userDao");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.UserDao", b =>
+                {
+                    b.HasOne("Demo.Data.RemoteData.RemoteDataBase.DAO.GroupDao", "Group")
+                        .WithMany("User")
+                        .HasForeignKey("GroupID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Group");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.GroupDao", b =>
+                {
+                    b.Navigation("User");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Migrations/20241024202926_InitialCreate.cs

@@ -0,0 +1,92 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Demo.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Groups",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Groups", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Users",
+                columns: table => new
+                {
+                    Guid = table.Column<Guid>(type: "uuid", nullable: false),
+                    FIO = table.Column<string>(type: "text", nullable: false),
+                    GroupID = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Users", x => x.Guid);
+                    table.ForeignKey(
+                        name: "FK_Users_Groups_GroupID",
+                        column: x => x.GroupID,
+                        principalTable: "Groups",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PresenceDaos",
+                columns: table => new
+                {
+                    UserGuid = table.Column<Guid>(type: "uuid", nullable: false),
+                    IsAttedance = table.Column<bool>(type: "boolean", nullable: false),
+                    Date = table.Column<DateOnly>(type: "date", nullable: false),
+                    LessonNumber = table.Column<int>(type: "integer", nullable: false),
+                    userDaoGuid = table.Column<Guid>(type: "uuid", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PresenceDaos", x => new { x.UserGuid, x.Date, x.IsAttedance, x.LessonNumber });
+                    table.ForeignKey(
+                        name: "FK_PresenceDaos_Users_userDaoGuid",
+                        column: x => x.userDaoGuid,
+                        principalTable: "Users",
+                        principalColumn: "Guid",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PresenceDaos_userDaoGuid",
+                table: "PresenceDaos",
+                column: "userDaoGuid");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Users_GroupID",
+                table: "Users",
+                column: "GroupID");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "PresenceDaos");
+
+            migrationBuilder.DropTable(
+                name: "Users");
+
+            migrationBuilder.DropTable(
+                name: "Groups");
+        }
+    }
+}

Migrations/RemoteDatabaseContextModelSnapshot.cs

@@ -0,0 +1,115 @@
+// <auto-generated />
+using System;
+using Data.RemoteData.RemoteDataBase.DAO;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace Demo.Migrations
+{
+    [DbContext(typeof(RemoteDatabaseContext))]
+    partial class RemoteDatabaseContextModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.10")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.GroupDao", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Groups");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.PresenceDao", b =>
+                {
+                    b.Property<Guid>("UserGuid")
+                        .HasColumnType("uuid");
+
+                    b.Property<DateOnly>("Date")
+                        .HasColumnType("date");
+
+                    b.Property<bool>("IsAttedance")
+                        .HasColumnType("boolean");
+
+                    b.Property<int>("LessonNumber")
+                        .HasColumnType("integer");
+
+                    b.Property<Guid>("userDaoGuid")
+                        .HasColumnType("uuid");
+
+                    b.HasKey("UserGuid", "Date", "IsAttedance", "LessonNumber");
+
+                    b.HasIndex("userDaoGuid");
+
+                    b.ToTable("PresenceDaos");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.UserDao", b =>
+                {
+                    b.Property<Guid>("Guid")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("uuid");
+
+                    b.Property<string>("FIO")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("GroupID")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Guid");
+
+                    b.HasIndex("GroupID");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.PresenceDao", b =>
+                {
+                    b.HasOne("Demo.Data.RemoteData.RemoteDataBase.DAO.UserDao", "userDao")
+                        .WithMany()
+                        .HasForeignKey("userDaoGuid")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("userDao");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.UserDao", b =>
+                {
+                    b.HasOne("Demo.Data.RemoteData.RemoteDataBase.DAO.GroupDao", "Group")
+                        .WithMany("User")
+                        .HasForeignKey("GroupID")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Group");
+                });
+
+            modelBuilder.Entity("Demo.Data.RemoteData.RemoteDataBase.DAO.GroupDao", b =>
+                {
+                    b.Navigation("User");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Program.cs

@@ -1,4 +1,5 @@
 
+using Data.RemoteData.RemoteDataBase.DAO;
 using Demo.Data.Repository;
 using Demo.Domain.UseCase;
 using Demo.UI;
@@ -7,17 +8,16 @@ using Microsoft.Extensions.DependencyInjection;
 IServiceCollection services = new ServiceCollection();
 
 services
-    .AddSingleton<IGroupRepository, GroupRepositoryImpl>()
-    .AddSingleton<IUserRepository, UserRepositoryImpl>()
-    .AddSingleton<IPresenceRepository, PresenceRepositoryImpl>()
+    .AddDbContext<RemoteDatabaseContext>()
+    .AddSingleton<IGroupRepository, SQLGroupRepositoryImpl>()
+    .AddSingleton<IUserRepository, SQLUserRepositoryImpl>()
+    .AddSingleton<IPresenceRepository, SQLPresenceRepositoryImpl>()
     .AddSingleton<IGroupUseCase, GroupUseCase>()
     .AddSingleton<IUserUseCase, UserUseCase>()
     .AddSingleton<IPresenceUseCase, PresenceUseCase>()
     .AddSingleton<UserConsoleUI>()
-    .AddSingleton<GroupConsoleUI>()
-    .AddSingleton<PresenceConsoleUI>()
     .AddSingleton<MainMenuUI>();
 
 var serviceProvider = services.BuildServiceProvider();
 
-MainMenuUI mainMenuUI = serviceProvider.GetService<MainMenuUI>();
+MainMenuUI? mainMenuUI = serviceProvider.GetService<MainMenuUI>();

UI/GroupConsole.cs

@@ -28,19 +28,33 @@ namespace Demo.UI
             }
         }
 
-        public void CreateNewGroup(Group group){
-            string output = _groupUseCase.CreateGroup(group) ? "Пользователь создан" : "Пользователь не создан";
+        public void CreateNewGroup(string Name){
+            string output = _groupUseCase.CreateGroup(Name) ? "Группа создана" : "Группа не создана";
+            Console.WriteLine(output);
         }
     
         public void DisplayAllGroups()
         {
-            StringBuilder groupOutput = new StringBuilder();
+            StringBuilder userOutput = new StringBuilder();
             foreach (var group in _groupUseCase.GetAllGroups())
             {
-                groupOutput.AppendLine($"{group.Id}\t {group.Name}\t");
-            }
-            Console.WriteLine(groupOutput);
+                userOutput.AppendLine($"{group.Id}\t{group.Name}");
             }
+            Console.WriteLine(userOutput);
         }
 
+        public void RemoveGroupById(int ID){
+            string output = _groupUseCase.RemoveGroupById(ID) ? "Группа удалена" : "Группа не удалена";
+            Console.WriteLine(output);
+        }
+
+        public void DisplayGroupByID(int ID){
+            StringBuilder userOutput = new StringBuilder();
+            var group = _groupUseCase.GetGroupById(ID);
+            {
+                userOutput.AppendLine($"{group.Id}\t{group.Name}");
+            }
+            Console.WriteLine(userOutput);
+        }
+    }
 }

UI/MainMenu.cs

@@ -28,18 +28,24 @@ namespace Demo.UI
             {
                 switch (Console.ReadLine())
                 {
+
                     case "1": _userConsoleUI.DisplayAllUsers(); break;
-                    case "2": _userConsoleUI.RemoveUserByGuid(Guid.Parse(Console.ReadLine())); break;
+                    case "2": _userConsoleUI.GetUserByGuid(Guid.Parse(Console.ReadLine())); break;
                     case "3": _userConsoleUI.UpdateUser(User.Parse(Console.ReadLine())); break;
-                    case "4": _userConsoleUI.GetUserByGuid(Guid.Parse(Console.ReadLine())); break;
+                    case "4": _userConsoleUI.RemoveUserByGuid(Guid.Parse(Console.ReadLine())); break;
+
                     case "5": _groupConsoleUI.DisplayAllGroups(); break;
-                    case "6": _groupConsoleUI.CreateNewGroup(Group.Parse(Console.ReadLine())); break;
+                    case "6": _groupConsoleUI.CreateNewGroup(Console.ReadLine()); break;
                     case "7": _groupConsoleUI.UpdateGroupName(Group.Parse(Console.ReadLine())); break;
-                    case "8": _presenceConsoleUI.DisplayPresenceByGroup(Convert.ToInt32(Console.ReadLine())); break;
-                    case "9": _presenceConsoleUI.DisplayPresenceByGroupByTime(Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine()))); break;
-                    case "10": _presenceConsoleUI.GeneratePresence(Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine()))); break;
-                    case "11": _presenceConsoleUI.GeneratePresenceWeek(Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine()))); break;
-                    case "12": _presenceConsoleUI.IsAttedance(Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine())), Guid.Parse(Console.ReadLine())); break;
+                    case "8": _groupConsoleUI.DisplayGroupByID(Convert.ToInt32(Console.ReadLine())); break;
+                    case "9": _groupConsoleUI.RemoveGroupById(Convert.ToInt32(Console.ReadLine())); break;
+                    
+
+                    case "10": _presenceConsoleUI.DisplayPresenceByGroup(Convert.ToInt32(Console.ReadLine())); break;
+                    case "11": _presenceConsoleUI.DisplayPresenceByGroupAndDate(Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine()))); break;
+                    case "12": _presenceConsoleUI.GeneratePresence(Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine()))); break;
+                    case "13": _presenceConsoleUI.GeneratePresenceWeek(Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine()))); break;
+                    case "14": _presenceConsoleUI.IsAttedance(Convert.ToInt32(Console.ReadLine()), Convert.ToInt32(Console.ReadLine()), DateOnly.FromDateTime(Convert.ToDateTime(Console.ReadLine())), Guid.Parse(Console.ReadLine())); break;
 
                     default: DisplayMenu();
                         break;

UI/PresenceConsole.cs

@@ -20,7 +20,7 @@ namespace Demo.UI
             Console.WriteLine(stringBuilder);
         }
 
-        public void DisplayPresenceByGroupByTime(int groupID, DateOnly date){
+        public void DisplayPresenceByGroupAndDate(int groupID, DateOnly date){
             StringBuilder stringBuilder = new StringBuilder();
             foreach(Presence presence in _presenceUseCase.GetPresencesByGroupAndDate(groupID, date)){
                 stringBuilder.AppendLine($"{presence.User.FIO}, {presence.User.Group.Name}, {presence.IsAttedance}, {presence.Date}, {presence.LessonNumber}");