Вроде доделано Databaseimplement для Поставщика

UniversityContracts/BindingModels/DocumentBindingModel.cs

@@ -12,5 +12,6 @@ namespace UniversityContracts.BindingModels
         public int Id { get; set; }
         public string Name { get; set; } = string.Empty;
         public DateTime Date { get; set; } = DateTime.Now;
+        public int UserId { get; set; }
     }
 }

UniversityContracts/BindingModels/EducationStatusBindingModel.cs

@@ -11,5 +11,7 @@ namespace UniversityContracts.BindingModels
     {
         public int Id { get; set; }
         public string Name { get; set; } = string.Empty;
+        public int UserId { get; set; }
+
     }
 }

UniversityContracts/BindingModels/StudentBindingModel.cs

@@ -15,5 +15,6 @@ namespace UniversityContracts.BindingModels
         public DateTime DateOfBirth { get; set; }
         public int StudentCard { get; set; }
         public int EducationStatusId { get; set; }
+        public int UserId { get; set; }
     }
 }

UniversityContracts/SearchModels/DocumentSearchModel.cs

@@ -9,5 +9,6 @@ namespace UniversityContracts.SearchModels
     public class DocumentSearchModel
     {
         public int? Id { get; set; }
+        public int? UserId { get; set; }
     }
 }

UniversityContracts/SearchModels/EducationStatusSearchModel.cs

@@ -10,5 +10,6 @@ namespace UniversityContracts.SearchModels
     {
         public int? Id { get; set; }
         public string? Name { get; set; }
+        public int? UserId { get; set; }
     }
 }

UniversityContracts/SearchModels/StudentSearchModel.cs

@@ -9,5 +9,6 @@ namespace UniversityContracts.SearchModels
     public class StudentSearchModel
     {
         public int? Id { get; set; }
+        public int? UserId { get; set; }
     }
 }

UniversityContracts/StoragesContracts/IDocumentStorage.cs

@@ -5,6 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using UniversityContracts.BindingModels;
 using UniversityContracts.SearchModels;
+using UniversityContracts.ViewModels;
 
 namespace UniversityContracts.StoragesContracts
 {

UniversityContracts/StoragesContracts/IEducationStatusStorage.cs

@@ -5,6 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using UniversityContracts.BindingModels;
 using UniversityContracts.SearchModels;
+using UniversityContracts.ViewModels;
 
 namespace UniversityContracts.StoragesContracts
 {

UniversityContracts/StoragesContracts/IStudentStorage.cs

@@ -5,6 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using UniversityContracts.BindingModels;
 using UniversityContracts.SearchModels;
+using UniversityContracts.ViewModels;
 
 namespace UniversityContracts.StoragesContracts
 {

UniversityContracts/ViewModels/DocumentViewModel.cs

@@ -11,6 +11,7 @@ namespace UniversityContracts.ViewModels
     public class DocumentViewModel : IDocumentModel
     {
         public int Id { get; set; }
+        public int UserId { get; set; }
         [DisplayName("Название документа")]
         public string Name { get; set; } = string.Empty;
         [DisplayName("Дата создания документа")]

UniversityContracts/ViewModels/EducationStatusViewModel.cs

@@ -13,5 +13,6 @@ namespace UniversityContracts.ViewModels
         public int Id { get; set; }
         [DisplayName("Название документа")]
         public string Name { get; set; } = string.Empty;
+        public int UserId { get; set; }
     }
 }

UniversityContracts/ViewModels/StudentViewModel.cs

@@ -11,12 +11,15 @@ namespace UniversityContracts.ViewModels
     public class StudentViewModel : IStudentModel
     {
         public int Id { get; set; }
+        public int UserId { get; set; }
         [DisplayName("Имя студента")]
         public string Name { get; set; } = string.Empty;
         [DisplayName("Фамилия студента")]
         public string Surname { get; set; } = string.Empty;
         [DisplayName("Дата рождения студента")]
         public DateTime DateOfBirth { get; set; } = DateTime.Now;
+        [DisplayName("Статус обучения")]
+        public string EducationStatusName { get; set; } = string.Empty;
         public int StudentCard { get; set; }
         public int EducationStatusId { get; set; }
     }

UniversityDataBaseImplemet/Class1.cs

@@ -1,7 +0,0 @@
-namespace UniversityDataBaseImplemet
-{
-    public class Class1
-    {
-
-    }
-}

UniversityDataBaseImplemet/Database.cs

@@ -0,0 +1,26 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UniversityDataBaseImplemet.Models;
+
+namespace UniversityDataBaseImplemet
+{
+    public class Database : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseNpgsql("Host=localhost;Port=5432;Database=University;Username=postgres;Password=postgres");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Document> Documents { get; set; }
+        public virtual DbSet<EducationStatus> EducationStatuses { get; set; }
+        public virtual DbSet<Student> Students { get; set; }
+        public virtual DbSet<StudentDocument> StudentDocuments { get; set; }
+    }
+}

UniversityDataBaseImplemet/Implements/DocumentStorage.cs

@@ -0,0 +1,113 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.Http.Headers;
+using System.Text;
+using System.Threading.Tasks;
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDataBaseImplemet.Models;
+
+namespace UniversityDataBaseImplemet.Implements
+{
+    public class DocumentStorage : IDocumentStorage
+    {
+        public DocumentViewModel? GetElement(DocumentSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new Database();
+            return context.Documents
+                .Include(record => record.User)
+                .FirstOrDefault(record => record.Id == model.Id)?
+                .GetViewModel;
+        }
+        public List<DocumentViewModel> GetFilteredList(DocumentSearchModel model)
+        {
+            using var context = new Database();
+            if (model.Id.HasValue)
+            {
+                return context.Documents
+                    .Include(x => x.User)
+                    .Where(record => record.Id.Equals(model.Id))
+                    .Select(record => record.GetViewModel)
+                    .ToList();
+            }
+            else if (model.UserId.HasValue)
+            {
+                return context.Documents
+                   .Include(x => x.User)
+                   .Where(x => x.UserId == model.UserId)
+                   .Select(x => x.GetViewModel)
+                   .ToList();
+            }
+            else
+            {
+                return new();
+            }
+        }
+        public List<DocumentViewModel> GetFullList()
+        {
+            using var context = new Database();
+            return context.Documents
+                .Include(record => record.User)
+                .Select(record => record.GetViewModel)
+                .ToList();
+        }
+        public DocumentViewModel? Insert(DocumentBindingModel model)
+        {
+            var newDocument = Document.Create(model);
+            if(newDocument == null) 
+            {
+                return null;
+            }
+            using var context = new Database();
+            context.Documents.Add(newDocument);
+            context.SaveChanges();
+            return newDocument.GetViewModel;
+        }
+        public DocumentViewModel? Update(DocumentBindingModel model)
+        {
+            using var context = new Database();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var document = context.Documents
+                    .Include(x => x.User)
+                    .FirstOrDefault(record => record.Id.Equals(model.Id));
+                if (document == null)
+                {
+                    return null;
+                }
+                document.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return document.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public DocumentViewModel? Delete(DocumentBindingModel model)
+        {
+            using var context = new Database();
+            var document = context.Documents
+                .Include(x => x.User)
+                .FirstOrDefault(record => record.Id.Equals(model.Id));
+            if (document == null)
+            {
+                return null;
+            }
+            context.Documents.Remove(document);
+            context.SaveChanges();
+            return document.GetViewModel;
+        }
+    }
+}

UniversityDataBaseImplemet/Implements/EducationStatusStorage.cs

@@ -0,0 +1,115 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDataBaseImplemet.Models;
+
+namespace UniversityDataBaseImplemet.Implements
+{
+    public class EducationStatusStorage : IEducationStatusStorage
+    {
+        public EducationStatusViewModel? GetElement(EducationStatusSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new Database();
+            return context.EducationStatuses
+                .Include(x => x.User)
+                .FirstOrDefault(record => record.Id == model.Id)?
+                .GetViewModel;
+        }
+        public List<EducationStatusViewModel> GetFilteredList(EducationStatusSearchModel model)
+        {
+            using var context = new Database();
+            if (model.Id.HasValue)
+            {
+                return context.EducationStatuses
+                    .Include(x => x.User)
+                    .Where(record => record.Id.Equals(model.Id))
+                    .Select(record => record.GetViewModel)
+                    .ToList();
+            }
+            else if (model.UserId.HasValue)
+            {
+                return context.EducationStatuses
+                   .Include(x => x.User)
+                   .Where(x => x.UserId == model.UserId)
+                   .Select(x => x.GetViewModel)
+                   .ToList();
+            }
+            else
+            {
+                return new();
+            }
+        }
+        public List<EducationStatusViewModel> GetFullList()
+        {
+            using var context = new Database();
+            return context.EducationStatuses
+                .Include(x => x.User)
+                .Select(record => record.GetViewModel)
+                .ToList();
+        }
+        public EducationStatusViewModel? Insert(EducationStatusBindingModel model)
+        {
+            var newEducationStatus = EducationStatus.Create(model);
+            if (newEducationStatus == null)
+            {
+                return null;
+            }
+            using var context = new Database();
+            context.EducationStatuses.Add(newEducationStatus);
+            context.SaveChanges();
+            return context.EducationStatuses
+                .Include(x => x.User)
+                .FirstOrDefault(x => x.Id.Equals(newEducationStatus.Id))
+                ?.GetViewModel;
+        }
+        public EducationStatusViewModel? Update(EducationStatusBindingModel model)
+        {
+            using var context = new Database();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var educationStatus = context.EducationStatuses
+                    .Include(x => x.User)
+                    .FirstOrDefault(record => record.Id.Equals(model.Id));
+                if (educationStatus == null)
+                {
+                    return null;
+                }
+                educationStatus.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return educationStatus.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public EducationStatusViewModel? Delete(EducationStatusBindingModel model)
+        {
+            using var context = new Database();
+            var educationStatus = context.EducationStatuses
+                .Include(x => x.User)
+                .FirstOrDefault(record => record.Id.Equals(model.Id));
+            if (educationStatus == null)
+            {
+                return null;
+            }
+            context.EducationStatuses.Remove(educationStatus);
+            context.SaveChanges();
+            return educationStatus.GetViewModel;
+        }
+    }
+}

UniversityDataBaseImplemet/Implements/StudentStorage.cs

@@ -0,0 +1,119 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography.X509Certificates;
+using System.Text;
+using System.Threading.Tasks;
+using UniversityContracts.BindingModels;
+using UniversityContracts.SearchModels;
+using UniversityContracts.StoragesContracts;
+using UniversityContracts.ViewModels;
+using UniversityDataBaseImplemet.Models;
+
+namespace UniversityDataBaseImplemet.Implements
+{
+    public class StudentStorage : IStudentStorage
+    {
+        public StudentViewModel? GetElement(StudentSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new Database();
+            return context.Students
+                .Include(record => record.User)
+                .Include(record => record.EducationStatus)
+                .FirstOrDefault(record => record.Id.Equals(model.Id))
+                ?.GetViewModel;
+        }
+        public List<StudentViewModel> GetFilteredList(StudentSearchModel model)
+        {
+            using var context = new Database();
+            if (model.Id.HasValue)
+            {
+                return context.Students
+                .Include(record => record.EducationStatus)
+                .Include(x => x.User)
+                .Where(record => record.Id.Equals(model.Id))
+                .Select(record => record.GetViewModel)
+                .ToList();
+            }
+            else if (model.UserId.HasValue)
+            {
+                return context.Students
+                   .Include(x => x.EducationStatus)
+                   .Include(x => x.User)
+                   .Where(x => x.UserId == model.UserId)
+                   .Select(x => x.GetViewModel)
+                   .ToList();
+            }
+            else
+            {
+                return new();
+            }
+        }
+        public List<StudentViewModel> GetFullList()
+        {
+            using var context = new Database();
+            return context.Students
+                .Include(x => x.User)
+                .Include(x => x.EducationStatus)
+                .Select(record => record.GetViewModel)
+                .ToList();
+        }
+        public StudentViewModel? Insert(StudentBindingModel model)
+        {
+            var newStudent = Student.Create(model);
+            if (newStudent == null)
+            {
+                return null;
+            }
+            using var context = new Database();
+            context.Students.Add(newStudent);
+            context.SaveChanges();
+            return newStudent.GetViewModel;
+        }
+        public StudentViewModel? Update(StudentBindingModel model)
+        {
+            using var context = new Database();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var student = context.Students
+                    .Include(x => x.User)
+                    .Include(x => x.EducationStatus)
+                    .FirstOrDefault(record => record.Id.Equals(model.Id));
+                if (student == null)
+                {
+                    return null;
+                }
+                student.Update(model);
+                context.SaveChanges();
+                transaction.Commit();
+                return student.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public StudentViewModel? Delete(StudentBindingModel model)
+        {
+            using var context = new Database();
+            var student = context.Students
+                .Include(x => x.User)
+                .Include(x => x.EducationStatus)
+                .FirstOrDefault(record => record.Id.Equals(model.Id));
+            if (student == null)
+            {
+                return null;
+            }
+            context.Students.Remove(student);
+            context.SaveChanges();
+            return student.GetViewModel;
+        }
+    }
+}

UniversityDataBaseImplemet/Models/Document.cs

@@ -0,0 +1,55 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityModels.Models;
+
+namespace UniversityDataBaseImplemet.Models
+{
+    public class Document : IDocumentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public DateTime Date { get; set; }
+        [Required]
+        public int UserId { get; set; }
+        [ForeignKey("DocumentId")]
+        public virtual List<StudentDocument> Students { get; set; } = new();
+        public virtual EducationStatus User { get; set; }
+
+        public static Document? Create(DocumentBindingModel model)
+        {
+            return new Document()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Date = model.Date,
+                UserId = model.UserId,
+            };
+        }
+        public void Update(DocumentBindingModel model)
+        {
+            if(model == null)
+            {
+                return;
+            }
+            Name = model.Name;
+            Date = model.Date;
+            UserId = model.UserId;
+        }
+        public DocumentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Date = Date,
+            UserId = UserId,
+        };
+    }
+}

UniversityDataBaseImplemet/Models/EducationStatus.cs

@@ -0,0 +1,50 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityModels.Models;
+
+namespace UniversityDataBaseImplemet.Models
+{
+    public class EducationStatus : IEducationStatusModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public int UserId { get; set; }
+        [ForeignKey("EducationStatusId")]
+        public virtual List<Student> Students { get; set; } = new();
+        public virtual EducationStatus User { get; set; }
+
+        public static EducationStatus? Create(EducationStatusBindingModel model)
+        {
+            return new EducationStatus()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                UserId = model.UserId,
+            };
+        }
+        public void Update(EducationStatusBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Name = model.Name;
+            UserId = model.UserId;
+        }
+        public EducationStatusViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            UserId = UserId,
+        };
+    }
+}

UniversityDataBaseImplemet/Models/Student.cs

@@ -0,0 +1,64 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using UniversityContracts.BindingModels;
+using UniversityContracts.ViewModels;
+using UniversityModels.Models;
+
+namespace UniversityDataBaseImplemet.Models
+{
+    public class Student : IStudentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string Name { get; set; } = string.Empty;
+        [Required]
+        public string Surname { get; set; } = string.Empty;
+        [Required]
+        public DateTime DateOfBirth { get; set; }
+        [Required]
+        public int StudentCard { get; set; }
+        [Required]
+        public int EducationStatusId { get; set; }
+        [Required]
+        public int UserId { get; set; }
+        [ForeignKey("StudentId")]
+        public virtual List<StudentDocument> DocumentStudents { get; set; } = new();
+        public virtual EducationStatus EducationStatus { get; set; }
+        public virtual EducationStatus User { get; set; }
+
+        public static Student Create(StudentBindingModel model)
+        {
+            return new Student()
+            {
+                Id = model.Id,
+                Name = model.Name,
+                Surname = model.Surname,
+                DateOfBirth = model.DateOfBirth,
+                StudentCard = model.StudentCard,
+                EducationStatusId = model.EducationStatusId,
+                UserId = model.UserId
+            };
+        }
+        public void Update(StudentBindingModel model)
+        {
+            StudentCard = model.StudentCard;
+            EducationStatusId = model.EducationStatusId;
+        }
+        public StudentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Name = Name,
+            Surname = Surname,
+            DateOfBirth = DateOfBirth,
+            StudentCard = StudentCard,
+            EducationStatusId = EducationStatusId,
+            UserId = UserId,
+            EducationStatusName = EducationStatus.Name
+        };
+    }
+}

UniversityDataBaseImplemet/Models/StudentDocument.cs

@@ -0,0 +1,20 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace UniversityDataBaseImplemet.Models
+{
+    public class StudentDocument
+    {
+        public int Id { get; set; }
+        [Required]
+        public int StudentId { get; set; }
+        [Required]
+        public int DocumentId { get; set; }
+        public virtual Student Student { get; set; } = new();
+        public virtual Document Document { get; set; } = new();
+    }
+}

UniversityDataBaseImplemet/UniversityDataBaseImplemet.csproj

@@ -6,4 +6,18 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Folder Include="Migrations\" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.4" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\UniversityContracts\UniversityContracts.csproj" />
+    <ProjectReference Include="..\UniversityModels\UniversityModels.csproj" />
+  </ItemGroup>
+
 </Project>

UniversityModels/Models/IDocumentModel.cs

@@ -10,5 +10,6 @@ namespace UniversityModels.Models
     {
         string Name { get; }
         DateTime Date { get; }
+        int UserId { get; }
     }
 }

UniversityModels/Models/IEducationStatusModel.cs

@@ -9,5 +9,6 @@ namespace UniversityModels.Models
     public interface IEducationStatusModel : IId
     {
         string Name { get; }
+        int UserId { get; }
     }
 }

UniversityModels/Models/IStudentModel.cs

@@ -13,5 +13,6 @@ namespace UniversityModels.Models
         DateTime DateOfBirth { get; }
         int StudentCard { get; }
         int EducationStatusId { get; }
+        int UserId { get; }
     }
 }