Merge branch 'BuisnessLogic' of http://student.git.athene.tech/maxKarme/PIbd-22_Karamushko_M_K_University_CourseWork into main

University/DatabaseImplement/Implements/ActivityStorage.cs

@@ -0,0 +1,75 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDatabaseImplement.Models;
+
+namespace UniversityDatabaseImplement.Implements
+{
+    internal class ActivityStorage : IActivityStorage
+    {
+        public List<ActivityViewModel> GetFullList()
+        {
+            using var context = new UniversityDatabase();
+            return context.Activities.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ActivityViewModel> GetFilteredList(ActivitySearchModel model)
+        {
+            using var context = new UniversityDatabase();
+            return context.Activities
+                .Where(x => (
+                        (!model.Id.HasValue || x.Id == model.Id)
+                    )
+                )
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ActivityViewModel? GetElement(ActivitySearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            return context.Activities
+            .FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ActivityViewModel? Insert(ActivityBindingModel model)
+        {
+            var newActivity = Activity.Create(model);
+            if (newActivity == null)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            context.Activities.Add(newActivity);
+            context.SaveChanges();
+            return newActivity.GetViewModel;
+        }
+
+        public ActivityViewModel? Update(ActivityBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var activity = context.Activities.FirstOrDefault(x => x.Id == model.Id);
+            if (activity == null)
+            {
+                return null;
+            }
+            activity.Update(model);
+            context.SaveChanges();
+            return activity.GetViewModel;
+        }
+        public ActivityViewModel? Delete(ActivityBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var element = context.Activities.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Activities.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

University/DatabaseImplement/Implements/DisciplineStorage.cs

@@ -0,0 +1,81 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace UniversityDatabaseImplement.Implements
+{
+    internal class DisciplineStorage : IDisciplineStorage
+    {
+        public List<DisciplineViewModel> GetFullList()
+        {
+            using var context = new UniversityDatabase();
+            return context.Disciplines
+                .Include(x => x.Statements)
+                .Select(x => x.GetViewModel).ToList();
+        }
+        public List<DisciplineViewModel> GetFilteredList(DisciplineSearchModel model)
+        {
+            using var context = new UniversityDatabase();
+            return context.Disciplines
+                .Include(x => x.Statements)
+                .Where(x => (
+                        (!model.Id.HasValue || x.Id == model.Id) &&
+                        (string.IsNullOrEmpty(model.Name) || x.Name.Contains(model.Name))
+                    )
+                )
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public DisciplineViewModel? GetElement(DisciplineSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            return context.Disciplines
+                .Include(x => x.Statements)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Name) && x.Name == model.Name) ||
+                                 (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public DisciplineViewModel? Insert(DisciplineBindingModel model)
+        {
+            var newDiscipline = Discipline.Create(model);
+            if (newDiscipline == null)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            context.Disciplines.Add(newDiscipline);
+            context.SaveChanges();
+            return newDiscipline.GetViewModel;
+        }
+        public DisciplineViewModel? Update(DisciplineBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var discipline = context.Disciplines.FirstOrDefault(x => x.Id == model.Id);
+            if (discipline == null)
+            {
+                return null;
+            }
+            discipline.Update(model);
+            context.SaveChanges();
+            return discipline.GetViewModel;
+        }
+        public DisciplineViewModel? Delete(DisciplineBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var element = context.Disciplines.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Disciplines.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

University/DatabaseImplement/Implements/ExaminationResultStorage.cs

@@ -0,0 +1,85 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace UniversityDatabaseImplement.Implements
+{
+    internal class ExaminationResultStorage : IExaminationResultStorage
+    {
+        public List<ExaminationResultViewModel> GetFullList()
+        {
+            using var context = new UniversityDatabase();
+            return context.ExaminationResults
+                .Include(x => x.StudentExaminationResults)
+                .ThenInclude(x => x.Student)
+                .Select(x => x.GetViewModel).ToList();
+        }
+        public List<ExaminationResultViewModel> GetFilteredList(ExaminationResultSearchModel model)
+        {
+            using var context = new UniversityDatabase();
+            return context.ExaminationResults
+                .Include(x => x.StudentExaminationResults)
+                .ThenInclude(x => x.Student)
+                .Where(x => (
+                        (!model.Id.HasValue || x.Id == model.Id) &&
+                        (!model.From.HasValue || x.Date >= model.From) &&
+                        (!model.To.HasValue || x.Date <= model.To)
+                    )
+                )
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ExaminationResultViewModel? GetElement(ExaminationResultSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            return context.ExaminationResults
+                .Include(x => x.StudentExaminationResults)
+                .ThenInclude(x => x.Student)
+                .FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ExaminationResultViewModel? Insert(ExaminationResultBindingModel model)
+        {
+            var newExaminationResult = ExaminationResult.Create(model);
+            if (newExaminationResult == null)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            context.ExaminationResults.Add(newExaminationResult);
+            context.SaveChanges();
+            return newExaminationResult.GetViewModel;
+        }
+
+        public ExaminationResultViewModel? Update(ExaminationResultBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var examinationResult = context.ExaminationResults.FirstOrDefault(x => x.Id == model.Id);
+            if (examinationResult == null)
+            {
+                return null;
+            }
+            examinationResult.Update(model);
+            context.SaveChanges();
+            return examinationResult.GetViewModel;
+        }
+        public ExaminationResultViewModel? Delete(ExaminationResultBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var element = context.ExaminationResults.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.ExaminationResults.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

University/DatabaseImplement/Implements/ReportTypeStorage.cs

@@ -0,0 +1,77 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDatabaseImplement.Models;
+
+namespace UniversityDatabaseImplement.Implements
+{
+    internal class ReportTypeStorage : IReportTypeStorage
+    {
+        public List<ReportTypeViewModel> GetFullList()
+        {
+            using var context = new UniversityDatabase();
+            return context.ReportTypes.Select(x => x.GetViewModel).ToList();
+        }
+        public List<ReportTypeViewModel> GetFilteredList(ReportTypeSearchModel model)
+        {
+            using var context = new UniversityDatabase();
+            return context.ReportTypes
+                .Where(x => (
+                        (!model.Id.HasValue || x.Id == model.Id) &&
+                        (string.IsNullOrEmpty(model.Name) || x.Name.Contains(model.Name))
+                    )
+                )
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ReportTypeViewModel? GetElement(ReportTypeSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            return context.ReportTypes
+            .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Name) && x.Name == model.Name) ||
+                                 (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ReportTypeViewModel? Insert(ReportTypeBindingModel model)
+        {
+            var newReportType = ReportType.Create(model);
+            if (newReportType == null)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            context.ReportTypes.Add(newReportType);
+            context.SaveChanges();
+            return newReportType.GetViewModel;
+        }
+
+        public ReportTypeViewModel? Update(ReportTypeBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var reportType = context.ReportTypes.FirstOrDefault(x => x.Id == model.Id);
+            if (reportType == null)
+            {
+                return null;
+            }
+            reportType.Update(model);
+            context.SaveChanges();
+            return reportType.GetViewModel;
+        }
+        public ReportTypeViewModel? Delete(ReportTypeBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var element = context.ReportTypes.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.ReportTypes.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

University/DatabaseImplement/Implements/StatementStorage.cs

@@ -0,0 +1,80 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace UniversityDatabaseImplement.Implements
+{
+    internal class StatementStorage : IStatementStorage
+    {
+        public List<StatementViewModel> GetFullList()
+        {
+            using var context = new UniversityDatabase();
+            return context.Statements
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<StatementViewModel> GetFilteredList(StatementSearchModel model)
+        {
+            using var context = new UniversityDatabase();
+            return context.Statements
+                .Where(x => (
+                        (!model.Id.HasValue || x.Id == model.Id) &&
+                        (!model.From.HasValue || x.Date >= model.From) &&
+                        (!model.To.HasValue || x.Date <= model.To)
+                    )
+                )
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public StatementViewModel? GetElement(StatementSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            return context.Statements
+                .FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public StatementViewModel? Insert(StatementBindingModel model)
+        {
+            var newStatement = Statement.Create(model);
+            if (newStatement == null)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            context.Statements.Add(newStatement);
+            context.SaveChanges();
+            return newStatement.GetViewModel;
+        }
+
+        public StatementViewModel? Update(StatementBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var statement = context.Statements.FirstOrDefault(x => x.Id == model.Id);
+            if (statement == null)
+            {
+                return null;
+            }
+            statement.Update(model);
+            context.SaveChanges();
+            return statement.GetViewModel;
+        }
+        public StatementViewModel? Delete(StatementBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var element = context.Statements.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Statements.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

University/DatabaseImplement/Implements/StudentStorage.cs

@@ -0,0 +1,86 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace UniversityDatabaseImplement.Implements
+{
+    internal class StudentStorage : IStudentStorage
+    {
+        public List<StudentViewModel> GetFullList()
+        {
+            using var context = new UniversityDatabase();
+            return context.Students
+                .Include(x => x.StatementStudents)
+                .ThenInclude(x => x.Statement)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<StudentViewModel> GetFilteredList(StudentSearchModel model)
+        {
+            using var context = new UniversityDatabase();
+            return context.Students
+                .Include(x => x.StatementStudents)
+                .ThenInclude(x => x.Statement)
+                .Where(x => (
+                        (!model.Id.HasValue || x.Id == model.Id) &&
+                        (string.IsNullOrEmpty(model.Name) || x.Name.Contains(model.Name))
+                    )
+                )
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public StudentViewModel? GetElement(StudentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.Name) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            return context.Students
+                .Include(x => x.StatementStudents)
+                .ThenInclude(x => x.Statement)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.Name) && x.Name== model.Name) ||
+                                     (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public StudentViewModel? Insert(StudentBindingModel model)
+        {
+            var newStudent = Student.Create(model);
+            if (newStudent == null)
+            {
+                return null;
+            }
+            using var context = new UniversityDatabase();
+            context.Students.Add(newStudent);
+            context.SaveChanges();
+            return newStudent.GetViewModel;
+        }
+
+        public StudentViewModel? Update(StudentBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var student = context.Students.FirstOrDefault(x => x.Id == model.Id);
+            if (student == null)
+            {
+                return null;
+            }
+            student.Update(model);
+            context.SaveChanges();
+            return student.GetViewModel;
+        }
+        public StudentViewModel? Delete(StudentBindingModel model)
+        {
+            using var context = new UniversityDatabase();
+            var element = context.Students.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Students.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

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/Migrations/20230408211938_Init.Designer.cs

@@ -0,0 +1,497 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using UniversityDatabaseImplement;
+
+#nullable disable
+
+namespace UniversityDatabaseImplement.Migrations
+{
+    [DbContext(typeof(UniversityDatabase))]
+    [Migration("20230408211938_Init")]
+    partial class Init
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Activity", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int?>("ExaminationResultId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Number")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ExaminationResultId");
+
+                    b.ToTable("Activities");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Discipline", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Department")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Disciplines");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ExaminationResult", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ExaminationForm")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("Mark")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("StatementId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StatementId");
+
+                    b.ToTable("ExaminationResults");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportType", 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("ReportTypes");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeActivity", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ActivityId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ReportTypeId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ActivityId");
+
+                    b.HasIndex("ReportTypeId");
+
+                    b.ToTable("ReportTypeActivities");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeDiscipline", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("DisciplineId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ReportTypeId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DisciplineId");
+
+                    b.HasIndex("ReportTypeId");
+
+                    b.ToTable("ReportTypeDisciplines");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Statement", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int?>("DisciplineId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("HoursCount")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DisciplineId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Statements");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StatementStudent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("StatementId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentTypeId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StatementId");
+
+                    b.HasIndex("StudentId");
+
+                    b.ToTable("StatementStudents");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Student", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("RecordCardNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Students");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StudentExaminationResult", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ExaminationResultId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ExaminationResultId");
+
+                    b.HasIndex("StudentId");
+
+                    b.ToTable("StudentExaminationResults");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Position")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.UserStudent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("StudentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentTypeId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StudentId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UserStudents");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Activity", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.ExaminationResult", null)
+                        .WithMany("Activities")
+                        .HasForeignKey("ExaminationResultId");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ExaminationResult", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Statement", null)
+                        .WithMany("ExaminationResults")
+                        .HasForeignKey("StatementId");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeActivity", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Activity", "Activity")
+                        .WithMany("ReportTypeActivities")
+                        .HasForeignKey("ActivityId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.ReportType", "ReportType")
+                        .WithMany("ReportTypeActivities")
+                        .HasForeignKey("ReportTypeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Activity");
+
+                    b.Navigation("ReportType");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeDiscipline", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Discipline", "Discipline")
+                        .WithMany("ReportTypeDisciplines")
+                        .HasForeignKey("DisciplineId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.ReportType", "ReportType")
+                        .WithMany("ReportTypeDisciplines")
+                        .HasForeignKey("ReportTypeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Discipline");
+
+                    b.Navigation("ReportType");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Statement", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Discipline", null)
+                        .WithMany("Statements")
+                        .HasForeignKey("DisciplineId");
+
+                    b.HasOne("UniversityDatabaseImplement.Models.User", null)
+                        .WithMany("Statements")
+                        .HasForeignKey("UserId");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StatementStudent", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Statement", "Statement")
+                        .WithMany("StatementStudents")
+                        .HasForeignKey("StatementId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.Student", "Student")
+                        .WithMany("StatementStudents")
+                        .HasForeignKey("StudentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Statement");
+
+                    b.Navigation("Student");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StudentExaminationResult", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.ExaminationResult", "ExaminationResult")
+                        .WithMany("StudentExaminationResults")
+                        .HasForeignKey("ExaminationResultId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.Student", "Student")
+                        .WithMany("StudentExaminationResults")
+                        .HasForeignKey("StudentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("ExaminationResult");
+
+                    b.Navigation("Student");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.UserStudent", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Student", "Student")
+                        .WithMany("StudentUsers")
+                        .HasForeignKey("StudentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.User", "User")
+                        .WithMany("StudentUsers")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Student");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Activity", b =>
+                {
+                    b.Navigation("ReportTypeActivities");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Discipline", b =>
+                {
+                    b.Navigation("ReportTypeDisciplines");
+
+                    b.Navigation("Statements");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ExaminationResult", b =>
+                {
+                    b.Navigation("Activities");
+
+                    b.Navigation("StudentExaminationResults");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportType", b =>
+                {
+                    b.Navigation("ReportTypeActivities");
+
+                    b.Navigation("ReportTypeDisciplines");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Statement", b =>
+                {
+                    b.Navigation("ExaminationResults");
+
+                    b.Navigation("StatementStudents");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Student", b =>
+                {
+                    b.Navigation("StatementStudents");
+
+                    b.Navigation("StudentExaminationResults");
+
+                    b.Navigation("StudentUsers");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.User", b =>
+                {
+                    b.Navigation("Statements");
+
+                    b.Navigation("StudentUsers");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

University/DatabaseImplement/Migrations/20230408211938_Init.cs

@@ -0,0 +1,384 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace UniversityDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Init : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Disciplines",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Department = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Disciplines", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ReportTypes",
+                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_ReportTypes", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Students",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    RecordCardNumber = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Students", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Users",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Name = table.Column<string>(type: "text", nullable: false),
+                    Surname = table.Column<string>(type: "text", nullable: false),
+                    PhoneNumber = table.Column<string>(type: "text", nullable: false),
+                    Position = table.Column<string>(type: "text", nullable: false),
+                    Login = table.Column<string>(type: "text", nullable: false),
+                    Password = table.Column<string>(type: "text", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Users", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ReportTypeDisciplines",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ReportTypeId = table.Column<int>(type: "integer", nullable: false),
+                    DisciplineId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ReportTypeDisciplines", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ReportTypeDisciplines_Disciplines_DisciplineId",
+                        column: x => x.DisciplineId,
+                        principalTable: "Disciplines",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ReportTypeDisciplines_ReportTypes_ReportTypeId",
+                        column: x => x.ReportTypeId,
+                        principalTable: "ReportTypes",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Statements",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Date = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    HoursCount = table.Column<int>(type: "integer", nullable: false),
+                    DisciplineId = table.Column<int>(type: "integer", nullable: true),
+                    UserId = table.Column<int>(type: "integer", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Statements", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Statements_Disciplines_DisciplineId",
+                        column: x => x.DisciplineId,
+                        principalTable: "Disciplines",
+                        principalColumn: "Id");
+                    table.ForeignKey(
+                        name: "FK_Statements_Users_UserId",
+                        column: x => x.UserId,
+                        principalTable: "Users",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "UserStudents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    StudentTypeId = table.Column<int>(type: "integer", nullable: false),
+                    UserId = table.Column<int>(type: "integer", nullable: false),
+                    StudentId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_UserStudents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_UserStudents_Students_StudentId",
+                        column: x => x.StudentId,
+                        principalTable: "Students",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_UserStudents_Users_UserId",
+                        column: x => x.UserId,
+                        principalTable: "Users",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ExaminationResults",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ExaminationForm = table.Column<string>(type: "text", nullable: false),
+                    Mark = table.Column<int>(type: "integer", nullable: false),
+                    Date = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    StatementId = table.Column<int>(type: "integer", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ExaminationResults", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ExaminationResults_Statements_StatementId",
+                        column: x => x.StatementId,
+                        principalTable: "Statements",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "StatementStudents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    StudentTypeId = table.Column<int>(type: "integer", nullable: false),
+                    StatementId = table.Column<int>(type: "integer", nullable: false),
+                    StudentId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_StatementStudents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_StatementStudents_Statements_StatementId",
+                        column: x => x.StatementId,
+                        principalTable: "Statements",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_StatementStudents_Students_StudentId",
+                        column: x => x.StudentId,
+                        principalTable: "Students",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Activities",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    Date = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Number = table.Column<int>(type: "integer", nullable: false),
+                    ExaminationResultId = table.Column<int>(type: "integer", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Activities", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Activities_ExaminationResults_ExaminationResultId",
+                        column: x => x.ExaminationResultId,
+                        principalTable: "ExaminationResults",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "StudentExaminationResults",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ExaminationResultId = table.Column<int>(type: "integer", nullable: false),
+                    StudentId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_StudentExaminationResults", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_StudentExaminationResults_ExaminationResults_ExaminationRes~",
+                        column: x => x.ExaminationResultId,
+                        principalTable: "ExaminationResults",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_StudentExaminationResults_Students_StudentId",
+                        column: x => x.StudentId,
+                        principalTable: "Students",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ReportTypeActivities",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ReportTypeId = table.Column<int>(type: "integer", nullable: false),
+                    ActivityId = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ReportTypeActivities", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ReportTypeActivities_Activities_ActivityId",
+                        column: x => x.ActivityId,
+                        principalTable: "Activities",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ReportTypeActivities_ReportTypes_ReportTypeId",
+                        column: x => x.ReportTypeId,
+                        principalTable: "ReportTypes",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Activities_ExaminationResultId",
+                table: "Activities",
+                column: "ExaminationResultId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ExaminationResults_StatementId",
+                table: "ExaminationResults",
+                column: "StatementId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ReportTypeActivities_ActivityId",
+                table: "ReportTypeActivities",
+                column: "ActivityId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ReportTypeActivities_ReportTypeId",
+                table: "ReportTypeActivities",
+                column: "ReportTypeId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ReportTypeDisciplines_DisciplineId",
+                table: "ReportTypeDisciplines",
+                column: "DisciplineId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ReportTypeDisciplines_ReportTypeId",
+                table: "ReportTypeDisciplines",
+                column: "ReportTypeId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Statements_DisciplineId",
+                table: "Statements",
+                column: "DisciplineId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Statements_UserId",
+                table: "Statements",
+                column: "UserId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_StatementStudents_StatementId",
+                table: "StatementStudents",
+                column: "StatementId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_StatementStudents_StudentId",
+                table: "StatementStudents",
+                column: "StudentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_StudentExaminationResults_ExaminationResultId",
+                table: "StudentExaminationResults",
+                column: "ExaminationResultId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_StudentExaminationResults_StudentId",
+                table: "StudentExaminationResults",
+                column: "StudentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserStudents_StudentId",
+                table: "UserStudents",
+                column: "StudentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_UserStudents_UserId",
+                table: "UserStudents",
+                column: "UserId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ReportTypeActivities");
+
+            migrationBuilder.DropTable(
+                name: "ReportTypeDisciplines");
+
+            migrationBuilder.DropTable(
+                name: "StatementStudents");
+
+            migrationBuilder.DropTable(
+                name: "StudentExaminationResults");
+
+            migrationBuilder.DropTable(
+                name: "UserStudents");
+
+            migrationBuilder.DropTable(
+                name: "Activities");
+
+            migrationBuilder.DropTable(
+                name: "ReportTypes");
+
+            migrationBuilder.DropTable(
+                name: "Students");
+
+            migrationBuilder.DropTable(
+                name: "ExaminationResults");
+
+            migrationBuilder.DropTable(
+                name: "Statements");
+
+            migrationBuilder.DropTable(
+                name: "Disciplines");
+
+            migrationBuilder.DropTable(
+                name: "Users");
+        }
+    }
+}

University/DatabaseImplement/Migrations/UniversityDatabaseModelSnapshot.cs

@@ -0,0 +1,494 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using UniversityDatabaseImplement;
+
+#nullable disable
+
+namespace UniversityDatabaseImplement.Migrations
+{
+    [DbContext(typeof(UniversityDatabase))]
+    partial class UniversityDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Activity", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int?>("ExaminationResultId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Number")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ExaminationResultId");
+
+                    b.ToTable("Activities");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Discipline", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Department")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Disciplines");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ExaminationResult", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ExaminationForm")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("Mark")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("StatementId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StatementId");
+
+                    b.ToTable("ExaminationResults");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportType", 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("ReportTypes");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeActivity", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ActivityId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ReportTypeId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ActivityId");
+
+                    b.HasIndex("ReportTypeId");
+
+                    b.ToTable("ReportTypeActivities");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeDiscipline", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("DisciplineId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ReportTypeId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DisciplineId");
+
+                    b.HasIndex("ReportTypeId");
+
+                    b.ToTable("ReportTypeDisciplines");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Statement", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<DateTime>("Date")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int?>("DisciplineId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("HoursCount")
+                        .HasColumnType("integer");
+
+                    b.Property<int?>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DisciplineId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("Statements");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StatementStudent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("StatementId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentTypeId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StatementId");
+
+                    b.HasIndex("StudentId");
+
+                    b.ToTable("StatementStudents");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Student", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("RecordCardNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Students");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StudentExaminationResult", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ExaminationResultId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ExaminationResultId");
+
+                    b.HasIndex("StudentId");
+
+                    b.ToTable("StudentExaminationResults");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.User", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Login")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Name")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Password")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("PhoneNumber")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Position")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<string>("Surname")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Users");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.UserStudent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("StudentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("StudentTypeId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("UserId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("StudentId");
+
+                    b.HasIndex("UserId");
+
+                    b.ToTable("UserStudents");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Activity", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.ExaminationResult", null)
+                        .WithMany("Activities")
+                        .HasForeignKey("ExaminationResultId");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ExaminationResult", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Statement", null)
+                        .WithMany("ExaminationResults")
+                        .HasForeignKey("StatementId");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeActivity", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Activity", "Activity")
+                        .WithMany("ReportTypeActivities")
+                        .HasForeignKey("ActivityId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.ReportType", "ReportType")
+                        .WithMany("ReportTypeActivities")
+                        .HasForeignKey("ReportTypeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Activity");
+
+                    b.Navigation("ReportType");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportTypeDiscipline", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Discipline", "Discipline")
+                        .WithMany("ReportTypeDisciplines")
+                        .HasForeignKey("DisciplineId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.ReportType", "ReportType")
+                        .WithMany("ReportTypeDisciplines")
+                        .HasForeignKey("ReportTypeId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Discipline");
+
+                    b.Navigation("ReportType");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Statement", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Discipline", null)
+                        .WithMany("Statements")
+                        .HasForeignKey("DisciplineId");
+
+                    b.HasOne("UniversityDatabaseImplement.Models.User", null)
+                        .WithMany("Statements")
+                        .HasForeignKey("UserId");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StatementStudent", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Statement", "Statement")
+                        .WithMany("StatementStudents")
+                        .HasForeignKey("StatementId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.Student", "Student")
+                        .WithMany("StatementStudents")
+                        .HasForeignKey("StudentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Statement");
+
+                    b.Navigation("Student");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.StudentExaminationResult", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.ExaminationResult", "ExaminationResult")
+                        .WithMany("StudentExaminationResults")
+                        .HasForeignKey("ExaminationResultId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.Student", "Student")
+                        .WithMany("StudentExaminationResults")
+                        .HasForeignKey("StudentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("ExaminationResult");
+
+                    b.Navigation("Student");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.UserStudent", b =>
+                {
+                    b.HasOne("UniversityDatabaseImplement.Models.Student", "Student")
+                        .WithMany("StudentUsers")
+                        .HasForeignKey("StudentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("UniversityDatabaseImplement.Models.User", "User")
+                        .WithMany("StudentUsers")
+                        .HasForeignKey("UserId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Student");
+
+                    b.Navigation("User");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Activity", b =>
+                {
+                    b.Navigation("ReportTypeActivities");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Discipline", b =>
+                {
+                    b.Navigation("ReportTypeDisciplines");
+
+                    b.Navigation("Statements");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ExaminationResult", b =>
+                {
+                    b.Navigation("Activities");
+
+                    b.Navigation("StudentExaminationResults");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.ReportType", b =>
+                {
+                    b.Navigation("ReportTypeActivities");
+
+                    b.Navigation("ReportTypeDisciplines");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Statement", b =>
+                {
+                    b.Navigation("ExaminationResults");
+
+                    b.Navigation("StatementStudents");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.Student", b =>
+                {
+                    b.Navigation("StatementStudents");
+
+                    b.Navigation("StudentExaminationResults");
+
+                    b.Navigation("StudentUsers");
+                });
+
+            modelBuilder.Entity("UniversityDatabaseImplement.Models.User", b =>
+                {
+                    b.Navigation("Statements");
+
+                    b.Navigation("StudentUsers");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

University/DatabaseImplement/Models/Activity.cs

@@ -0,0 +1,45 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class Activity : IActivityModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public DateTime Date { get; set; }
+        [Required]
+        public int Number { get; set; }
+        [ForeignKey("ActivityId")]
+        public virtual List<ReportTypeActivity> ReportTypeActivities { get; set; } = new();
+
+        public static Activity Create(ActivityBindingModel model)
+        {
+            return new Activity
+            {
+                Id = model.Id,
+                Date = model.Date,
+                Number = model.Number
+            };
+        }
+
+        public void Update(ActivityBindingModel model)
+        {
+            if (model == null) return;
+
+            Id = model.Id;
+            Date = model.Date;
+            Number = model.Number;
+        }
+
+        public ActivityViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Date = Date,
+            Number = Number
+        };
+    }
+}

University/DatabaseImplement/Models/Discipline.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 Discipline : IDisciplineModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public string Department { get; set; } = string.Empty;
+        [ForeignKey("DisciplineId")]
+        public virtual List<Statement> Statements { get; set; } = new();
+        [ForeignKey("DisciplineId")]
+        public virtual List<ReportTypeDiscipline> ReportTypeDisciplines { get; set; } = new();
+        private Dictionary<int, IStatementModel>? _disciplineStatements;
+        [NotMapped]
+        public Dictionary<int, IStatementModel> DisciplineStatements
+        {
+            get
+            {
+                if (_disciplineStatements == null)
+                {
+                    _disciplineStatements = Statements.ToDictionary(
+                        x => x.Id, x => x as IStatementModel);
+                }
+
+                return _disciplineStatements;
+            }
+        }
+
+        public static Discipline Create(DisciplineBindingModel model)
+        {
+            return new Discipline
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Department = model.Department
+            };
+        }
+
+        public void Update(DisciplineBindingModel model)
+        {
+            if (model == null) return;
+
+            Id = model.Id;
+            Name = model.Name;
+            Department = model.Department;
+        }
+
+        public DisciplineViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Department = Department
+        };
+    }
+}

University/DatabaseImplement/Models/ExaminationResult.cs

@@ -0,0 +1,67 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using UniversityDataModels.Enums;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class ExaminationResult : IExaminationResultModel
+    {
+        public int Id { get; set; }
+        public string ExaminationForm { get; set; } = string.Empty;
+        [Required]
+        public MarkType Mark { get; set; }
+        [Required]
+        public DateTime Date { get; set; }
+        [ForeignKey("ExaminationResultId")]
+        public virtual List<Activity> Activities { get; set; } = new();
+        [ForeignKey("ExaminationResultId")]
+        public virtual List<StudentExaminationResult> StudentExaminationResults { get; set; } = new();
+
+        private Dictionary<int, IStudentModel>? _students;
+        [NotMapped]
+        public Dictionary<int, IStudentModel> Students
+        {
+            get
+            {
+                if (_students == null)
+                {
+                    _students = StudentExaminationResults.ToDictionary(
+                        x => x.Student.Id, x => x.Student as IStudentModel);
+                }
+
+                return _students;
+            }
+        }
+        public static ExaminationResult Create(ExaminationResultBindingModel model)
+        {
+            return new ExaminationResult
+            {
+                Id = model.Id,
+                ExaminationForm = model.ExaminationForm,
+                Mark = model.Mark,
+                Date = model.Date
+            };
+        }
+
+        public void Update(ExaminationResultBindingModel model)
+        {
+            if (model == null) return;
+
+            Id = model.Id;
+            ExaminationForm = model.ExaminationForm;
+            Mark = model.Mark;
+            Date = model.Date;
+        }
+
+        public ExaminationResultViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ExaminationForm = ExaminationForm,
+            Mark = Mark,
+            Date = Date
+        };
+    }
+}

University/DatabaseImplement/Models/ReportType.cs

@@ -0,0 +1,40 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class ReportType : IReportTypeModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [ForeignKey("ReportTypeId")]
+        public virtual List<ReportTypeActivity> ReportTypeActivities { get; set; } = new();
+        [ForeignKey("ReportTypeId")]
+        public virtual List<ReportTypeDiscipline> ReportTypeDisciplines { get; set; } = new();
+        public static ReportType Create(ReportTypeBindingModel model)
+        {
+            return new ReportType
+            {
+                Id = model.Id,
+                Name = model.Name
+            };
+        }
+        public void Update(ReportTypeBindingModel model)
+        {
+            if (model == null) return;
+
+            Id = model.Id;
+            Name = model.Name;
+        }
+
+        public ReportTypeViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name
+        };
+    }
+}

University/DatabaseImplement/Models/ReportTypeActivity.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class ReportTypeActivity
+    {
+        public int Id { get; set; }
+        [Required]
+        public int ReportTypeId { get; set; }
+        [Required]
+        public int ActivityId { get; set; }
+        public virtual ReportType ReportType { get; set; } = new();
+        public virtual Activity Activity { get; set; } = new();
+    }
+}

University/DatabaseImplement/Models/ReportTypeDiscipline.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class ReportTypeDiscipline
+    {
+        public int Id { get; set; }
+        [Required]
+        public int ReportTypeId { get; set; }
+        [Required]
+        public int DisciplineId { get; set; }
+        public virtual ReportType ReportType { get; set; } = new();
+        public virtual Discipline Discipline { get; set; } = new();
+    }
+}

University/DatabaseImplement/Models/Statement.cs

@@ -0,0 +1,46 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class Statement : IStatementModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public DateTime Date { get; set; }
+        [Required]
+        public int HoursCount { get; set; }
+        [ForeignKey("StatementId")]
+        public virtual List<StatementStudent> StatementStudents { get; set; } = new();
+        [ForeignKey("StatementId")]
+        public virtual List<ExaminationResult> ExaminationResults { get; set; } = new();
+        public static Statement Create(StatementBindingModel model)
+        {
+            return new Statement
+            {
+                Id = model.Id,
+                Date = model.Date,
+                HoursCount = model.HoursCount
+            };
+        }
+        public void Update(StatementBindingModel model)
+        {
+            if (model == null) return;
+
+            Id = model.Id;
+            Date = model.Date;
+            HoursCount = model.HoursCount;
+        }
+
+        public StatementViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Date = Date,
+            HoursCount = HoursCount,
+        };
+
+    }
+}

University/DatabaseImplement/Models/StatementStudent.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class StatementStudent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int StudentTypeId { get; set; }
+        [Required]
+        public int StatementId { get; set; }
+        public virtual Student Student { get; set; } = new();
+        public virtual Statement Statement { get; set; } = new();
+    }
+}

University/DatabaseImplement/Models/Student.cs

@@ -0,0 +1,65 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class Student : IStudentModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public string RecordCardNumber { get; set; } = string.Empty;
+        [ForeignKey("StudentId")]
+        public virtual List<StatementStudent> StatementStudents { get; set; } = new();
+        [ForeignKey("StudentId")]
+        public virtual List<StudentExaminationResult> StudentExaminationResults { get; set; } = new();
+        [ForeignKey("StudentId")]
+        public virtual List<UserStudent> StudentUsers { get; set; } = new();
+
+        private Dictionary<int, IStatementModel>? _statements;
+        [NotMapped]
+        public Dictionary<int, IStatementModel> Statements
+        {
+            get
+            {
+                if (_statements == null)
+                {
+                    _statements = StatementStudents.ToDictionary(
+                        x => x.Statement.Id, x => x.Statement as IStatementModel);
+                }
+
+                return _statements;
+            }
+        }
+        public static Student Create(StudentBindingModel model)
+        {
+            return new Student
+            {
+                Id = model.Id,
+                Name = model.Name,
+                RecordCardNumber = model.RecordCardNumber
+            };
+        }
+        public void Update(StudentBindingModel model)
+        {
+            if (model == null) return;
+
+            Id = model.Id;
+            Name = model.Name;
+            RecordCardNumber = model.RecordCardNumber;
+        }
+
+        public StudentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            RecordCardNumber = RecordCardNumber,
+            Statements = Statements
+        };
+
+    }
+}

University/DatabaseImplement/Models/StudentExaminationResult.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class StudentExaminationResult
+    {
+        public int Id { get; set; }
+        [Required]
+        public int ExaminationResultId { get; set; }
+        [Required]
+        public int StudentId { get; set; }
+        public virtual ExaminationResult ExaminationResult { get; set; } = new();
+        public virtual Student Student { get; set; } = new();
+    }
+}

University/DatabaseImplement/Models/User.cs

@@ -0,0 +1,66 @@
+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;
+        [ForeignKey("UserId")]
+        public virtual List<UserStudent> StudentUsers { get; set; } = new();
+        [ForeignKey("UserId")]
+        public virtual List<Statement> Statements { get; set; } = new();
+        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/Models/UserStudent.cs

@@ -0,0 +1,15 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace UniversityDatabaseImplement.Models
+{
+    public class UserStudent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int StudentTypeId { get; set; }
+        [Required]
+        public int UserId { get; set; }
+        public virtual Student Student { get; set; } = new();
+        public virtual User User { get; set; } = new();
+    }
+}

University/DatabaseImplement/UniversityDatabase.cs

@@ -0,0 +1,29 @@
+using UniversityDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace UniversityDatabaseImplement
+{
+    public class UniversityDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseNpgsql(@"Host=localhost;Port=5432;Database=UniversityDatabase;Username=postgres;Password=postgres");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Activity> Activities { set; get; }
+        public virtual DbSet<Discipline> Disciplines { set; get; }
+        public virtual DbSet<ExaminationResult> ExaminationResults { set; get; }
+        public virtual DbSet<ReportType> ReportTypes { set; get; }
+        public virtual DbSet<ReportTypeActivity> ReportTypeActivities { set; get; }
+        public virtual DbSet<ReportTypeDiscipline> ReportTypeDisciplines { set; get; }
+        public virtual DbSet<Statement> Statements { set; get; }
+        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; }
+        public virtual DbSet<UserStudent> UserStudents { set; get; }
+    }
+}

University/DatabaseImplement/UniversityDatabaseImplement.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\UniversityContracts\UniversityContracts.csproj" />
+    <ProjectReference Include="..\UniversityDataModels\UniversityDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

University/University.sln

@@ -5,9 +5,13 @@ VisualStudioVersion = 17.1.32319.34
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "University", "University\University.csproj", "{34B9CDDB-BFE5-48B9-AA3A-1A01D99A765D}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UniversityDataModels", "UniversityDataModels\UniversityDataModels.csproj", "{36B2DE4B-7689-4287-911E-892FCD27AE84}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "UniversityDataModels", "UniversityDataModels\UniversityDataModels.csproj", "{36B2DE4B-7689-4287-911E-892FCD27AE84}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UniversityContracts", "UniversityContracts\UniversityContracts.csproj", "{BACEFD46-1073-4730-BC42-15B0D0D359C9}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "UniversityContracts", "UniversityContracts\UniversityContracts.csproj", "{BACEFD46-1073-4730-BC42-15B0D0D359C9}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "UniversityDatabaseImplement", "DatabaseImplement\UniversityDatabaseImplement.csproj", "{E90DAE97-8D0D-4E8E-89BC-82D3B54DA067}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "UniversityBuisnessLogic", "UniversityBuisnessLogic\UniversityBuisnessLogic.csproj", "{F29FD127-9597-44ED-A9A2-3CFB8E856442}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -27,6 +31,14 @@ Global
 		{BACEFD46-1073-4730-BC42-15B0D0D359C9}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{BACEFD46-1073-4730-BC42-15B0D0D359C9}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{BACEFD46-1073-4730-BC42-15B0D0D359C9}.Release|Any CPU.Build.0 = Release|Any CPU
+		{E90DAE97-8D0D-4E8E-89BC-82D3B54DA067}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{E90DAE97-8D0D-4E8E-89BC-82D3B54DA067}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{E90DAE97-8D0D-4E8E-89BC-82D3B54DA067}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{E90DAE97-8D0D-4E8E-89BC-82D3B54DA067}.Release|Any CPU.Build.0 = Release|Any CPU
+		{F29FD127-9597-44ED-A9A2-3CFB8E856442}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F29FD127-9597-44ED-A9A2-3CFB8E856442}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F29FD127-9597-44ED-A9A2-3CFB8E856442}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F29FD127-9597-44ED-A9A2-3CFB8E856442}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

University/University/University.csproj

@@ -8,4 +8,15 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\DatabaseImplement\UniversityDatabaseImplement.csproj" />
+  </ItemGroup>
+
 </Project>

University/UniversityBuisnessLogic/BuisnessLogic/ActivityLogic.cs

@@ -0,0 +1,102 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class ActivityLogic : IActivityLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IActivityStorage _activityStorage;
+
+        public ActivityLogic(ILogger<ActivityLogic> logger, IActivityStorage activityStorage)
+        {
+            _logger = logger;
+            _activityStorage = activityStorage;
+        }
+        public bool Create(ActivityBindingModel model)
+        {
+            CheckModel(model);
+            if (_activityStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ActivityBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_activityStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public ActivityViewModel? ReadElement(ActivitySearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{Id}", model.Id);
+            var element = _activityStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public List<ActivityViewModel>? ReadList(ActivitySearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{Id}", model?.Id);
+            var list = model == null ? _activityStorage.GetFullList() : _activityStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(ActivityBindingModel model)
+        {
+            CheckModel(model);
+            if (_activityStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ActivityBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.Number <= 0)
+            {
+                throw new ArgumentNullException("Номер занятия должен быть больше 0", nameof(model.Number));
+            }
+
+            _logger.LogInformation("Activity. Number:{ComponentName}. Id: {Id}", model.Number, model.Id);
+        }
+    }
+}

University/UniversityBuisnessLogic/BuisnessLogic/DisciplineLogic.cs

@@ -0,0 +1,117 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class DisciplineLogic : IDisciplineLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IDisciplineStorage _disciplineStorage;
+
+        public DisciplineLogic(ILogger<DisciplineLogic> logger, IDisciplineStorage disciplineStorage)
+        {
+            _logger = logger;
+            _disciplineStorage = disciplineStorage;
+        }
+
+        public bool Create(DisciplineBindingModel model)
+        {
+            CheckModel(model);
+            if (_disciplineStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(DisciplineBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_disciplineStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public DisciplineViewModel? ReadElement(DisciplineSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. DisciplineName:{Name}. Id:{Id}", model.Name, model.Id);
+            var element = _disciplineStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public List<DisciplineViewModel>? ReadList(DisciplineSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. DisciplineName: {Name}. Id:{Id}", model?.Name, model?.Id);
+            var list = model == null ? _disciplineStorage.GetFullList() : _disciplineStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(DisciplineBindingModel model)
+        {
+            CheckModel(model);
+            if (_disciplineStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(DisciplineBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет названия дисциплины", nameof(model.Name));
+            }
+            if (string.IsNullOrEmpty(model.Department))
+            {
+                throw new ArgumentNullException("Нет названия кафедры", nameof(model.Name));
+            }
+
+            _logger.LogInformation("Discipline. Name:{Name}. Department:{Department}. Id: {Id}", model.Name, model.Department, model.Id);
+
+            var element = _disciplineStorage.GetElement(new DisciplineSearchModel
+            {
+                Name = model.Name
+            });
+
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Дисциплина с таким названием уже есть");
+            }
+        }
+    }
+}

University/UniversityBuisnessLogic/BuisnessLogic/ExaminationResultLogic.cs

@@ -0,0 +1,103 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class ExaminationResultLogic : IExaminationResultLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IExaminationResultStorage _examinationResultStorage;
+
+        public ExaminationResultLogic(ILogger<ExaminationResultLogic> logger, IExaminationResultStorage examinationResultStorage)
+        {
+            _logger = logger;
+            _examinationResultStorage = examinationResultStorage;
+        }
+
+        public bool Create(ExaminationResultBindingModel model)
+        {
+            CheckModel(model);
+            if (_examinationResultStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ExaminationResultBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_examinationResultStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public ExaminationResultViewModel? ReadElement(ExaminationResultSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{Id}", model.Id);
+            var element = _examinationResultStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public List<ExaminationResultViewModel>? ReadList(ExaminationResultSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{Id}", model?.Id);
+            var list = model == null ? _examinationResultStorage.GetFullList() : _examinationResultStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(ExaminationResultBindingModel model)
+        {
+            CheckModel(model);
+            if (_examinationResultStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ExaminationResultBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.ExaminationForm))
+            {
+                throw new ArgumentNullException("Нет формы испытания", nameof(model.ExaminationForm));
+            }
+
+            _logger.LogInformation("ExaminationResult. ExaminationForm: {ExaminationForm}. Id: {Id}", model.ExaminationForm, model.Id);
+        }
+    }
+}

University/UniversityBuisnessLogic/BuisnessLogic/ReportLogic.cs

@@ -0,0 +1,115 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class ReportLogic : IReportLogic
+    {
+        ILogger _logger;
+        IDisciplineStorage _disciplineStorage;
+        IStatementStorage _statementStorage;
+        IExaminationResultStorage _examinationResultStorage;
+
+        public ReportLogic(ILogger<ReportLogic> logger, IDisciplineStorage disciplineStorage,
+                           IStatementStorage statementStorage, IExaminationResultStorage examinationResultStorage)
+        {
+            _logger = logger;
+            _disciplineStorage = disciplineStorage;
+            _statementStorage = statementStorage;
+            _examinationResultStorage = examinationResultStorage;
+        }
+
+        public List<ReportStudentsViewModel> GetStudens(ReportBindingModel model)
+        {
+            if (model == null) return new();
+
+            var results = _examinationResultStorage.GetFilteredList(new ExaminationResultSearchModel
+            {
+                From = model.From,
+                To = model.To,
+            });
+
+            var statements = _statementStorage.GetFilteredList(new StatementSearchModel
+            {
+                From = model.From,
+                To = model.To,
+            });
+
+            List<ReportStudentsViewModel> list = new();
+
+            foreach (var result in results)
+            {
+                foreach(var student in result.Students.Values)
+                {
+                    foreach(var statement in statements)
+                    {
+                        if (!student.Statements.ContainsKey(statement.Id)) continue;
+
+                        list.Add(new ReportStudentsViewModel
+                        {
+                            StudentName = student.Name,
+                            ExaminationForm = result.ExaminationForm,
+                            mark = result.Mark,
+                            ExaminationResultDate = result.Date,
+                            HoursCount = statement.HoursCount,
+                            StatementDate = statement.Date
+                        });
+                    }
+                }
+            }
+
+            return list;
+        }
+
+        public List<ReportStudentDisciplineViewModel> GetStudentDiscipline(ReportBindingModel model)
+        {
+            if (model == null || model.Students == null) return new();
+
+            var disciplines = _disciplineStorage.GetFullList();
+            List<ReportStudentDisciplineViewModel> result = new();
+
+            foreach(var student in model.Students)
+            {
+                var record = new ReportStudentDisciplineViewModel
+                {
+                    StudentName = student.Name,
+                };
+
+                foreach(var discipline in disciplines)
+                {
+                    foreach (var statement in discipline.DisciplineStatements)
+                    {
+                        if(student.Statements.ContainsKey(statement.Key))
+                        {
+                            record.Disciplines.Add(discipline.Name);
+                            break;
+                        }
+                    }
+                }
+
+                result.Add(record);
+            }
+
+            return result;
+        }
+
+        public void SaveStudentsToExcel()
+        {
+            throw new NotImplementedException("Реализация в следующем этапе");
+        }
+
+        public void SaveStudentsToPdf()
+        {
+            throw new NotImplementedException("Реализация в следующем этапе");
+        }
+
+        public void SaveStudentsToWord()
+        {
+            throw new NotImplementedException("Реализация в следующем этапе");
+        }
+    }
+}

University/UniversityBuisnessLogic/BuisnessLogic/ReportTypeLogic.cs

@@ -0,0 +1,112 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class ReportTypeLogic : IReportTypeLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IReportTypeStorage _reportTypeStorage;
+
+        public ReportTypeLogic(ILogger<ReportTypeLogic> logger, IReportTypeStorage reportTypeStorage)
+        {
+            _logger = logger;
+            _reportTypeStorage = reportTypeStorage;
+        }
+
+        public bool Create(ReportTypeBindingModel model)
+        {
+            CheckModel(model);
+            if (_reportTypeStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ReportTypeBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_reportTypeStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public ReportTypeViewModel? ReadElement(ReportTypeSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. ReportTypeName: {Name}. Id:{Id}", model.Name, model.Id);
+            var element = _reportTypeStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public List<ReportTypeViewModel>? ReadList(ReportTypeSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. ReportTypeName: {Name}. Id:{Id}", model?.Name, model?.Id);
+            var list = model == null ? _reportTypeStorage.GetFullList() : _reportTypeStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(ReportTypeBindingModel model)
+        {
+            CheckModel(model);
+            if (_reportTypeStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ReportTypeBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет названия типа отчета", nameof(model.Name));
+            }
+
+            _logger.LogInformation("ReportType. ReportName:{Name}. Id: { Id}", model.Name, model.Id);
+            var element = _reportTypeStorage.GetElement(new ReportTypeSearchModel
+            {
+                Name = model.Name,
+            });
+
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Тип отчета с таким названием уже есть");
+            }
+        }
+    }
+}

University/UniversityBuisnessLogic/BuisnessLogic/StatementLogic.cs

@@ -0,0 +1,101 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class StatementLogic : IStatementLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IStatementStorage _statementStorage;
+
+        public StatementLogic(ILogger<StatementLogic> logger, IStatementStorage statementStorage)
+        {
+            _logger = logger;
+            _statementStorage = statementStorage;
+        }
+        public bool Create(StatementBindingModel model)
+        {
+            CheckModel(model);
+            if (_statementStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(StatementBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_statementStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public StatementViewModel? ReadElement(StatementSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{Id}", model.Id);
+            var element = _statementStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+        f
+        public List<StatementViewModel>? ReadList(StatementSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{Id}", model?.Id);
+            var list = model == null ? _statementStorage.GetFullList() : _statementStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(StatementBindingModel model)
+        {
+            CheckModel(model);
+            if (_statementStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(StatementBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (model.HoursCount <= 0)
+            {
+                throw new ArgumentNullException("Количество часов в ведомости должно быть больше 0", nameof(model.HoursCount));
+            }
+            _logger.LogInformation("Statement. HoursCount:{HoursCount}. Id: { Id}", model.HoursCount, model.Id);
+        }
+    }
+}

University/UniversityBuisnessLogic/BuisnessLogic/StudentLogic.cs

@@ -0,0 +1,101 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class StudentLogic : IStudentLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IStudentStorage _studentStorage;
+
+        public StudentLogic(ILogger<StudentLogic> logger, IStudentStorage studentStorage)
+        {
+            _logger = logger;
+            _studentStorage = studentStorage;
+        }
+        public bool Create(StudentBindingModel model)
+        {
+            CheckModel(model);
+            if (_studentStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(StudentBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_studentStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public StudentViewModel? ReadElement(StudentSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. StudentName: {Name}. Id:{Id}", model.Name, model.Id);
+            var element = _studentStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public List<StudentViewModel>? ReadList(StudentSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. StudentName: {Name}. Id:{Id}", model?.Name, model?.Id);
+            var list = model == null ? _studentStorage.GetFullList() : _studentStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(StudentBindingModel model)
+        {
+            CheckModel(model);
+            if (_studentStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        private void CheckModel(StudentBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет имени студента", nameof(model.Name));
+            }
+
+            _logger.LogInformation("Student. Name:{Name}. Id: { Id}", model.Name, model.Id);
+        }
+    }
+}

University/UniversityBuisnessLogic/BuisnessLogic/UserLogic.cs

@@ -0,0 +1,130 @@
+using UniversityContracts.BindingModels;
+using UniversityContracts.BuisnessLogicContracts;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+
+namespace UniversityBuisnessLogic.BuisnessLogic
+{
+    public class UserLogic : IUserLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IUserStorage _userStorage;
+
+        public UserLogic(ILogger<UserLogic> logger, IUserStorage userStorage)
+        {
+            _logger = logger;
+            _userStorage = userStorage;
+        }
+
+        public bool Create(UserBindingModel model)
+        {
+            CheckModel(model);
+            if (_userStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(UserBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_userStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public UserViewModel? ReadElement(UserSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. Id:{Id}", model.Id);
+            var element = _userStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public List<UserViewModel>? ReadList(UserSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. Id:{Id}", model?.Id);
+            var list = model == null ? _userStorage.GetFullList() : _userStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public bool Update(UserBindingModel model)
+        {
+            CheckModel(model);
+            if (_userStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(UserBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.Name))
+            {
+                throw new ArgumentNullException("Нет имени пользователя", nameof(model.Name));
+            }
+            if (string.IsNullOrEmpty(model.Surname))
+            {
+                throw new ArgumentNullException("Нет фамилии пользователя", nameof(model.Name));
+            }
+            if (string.IsNullOrEmpty(model.Login))
+            {
+                throw new ArgumentNullException("Нет логина", nameof(model.Name));
+            }
+            if (string.IsNullOrEmpty(model.Password))
+            {
+                throw new ArgumentNullException("Нет фамилии пароля", nameof(model.Name));
+            }
+            else if (model.Password.Length < 6)
+            {
+                throw new ArgumentNullException("В пароле должно быть не менее 6 символов", nameof(model.Name));
+            }
+
+            _logger.LogInformation("User. Name:{Name}. Surname:{Surname}. Login: {Login} " +
+                                   "Password: {Password}. Id: {Id}", model.Name, model.Surname, model.Login, model.Password, model.Id);
+
+            var element = _userStorage.GetElement(new UserSearchModel
+            {
+                Login = model.Login,
+            });
+
+            if (element != null && element.Id != model.Id)
+            {
+                throw new InvalidOperationException("Пользователь с таким логином уже есть");
+            }
+        }
+    }
+}

University/UniversityBuisnessLogic/UniversityBuisnessLogic.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\UniversityContracts\UniversityContracts.csproj" />
+  </ItemGroup>
+
+</Project>