done;withLogsConsole

AddTeacher.axaml.cs

@@ -1,3 +1,4 @@
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Avalonia;
@@ -5,6 +6,7 @@ using Avalonia.Controls;
 using Avalonia.Interactivity;
 using Avalonia.Markup.Xaml;
 using kursovaya.Models;
+using kursovaya.ModelsLocal;
 
 namespace kursovaya;
 
@@ -14,6 +16,7 @@ public partial class AddTeacher : Window
     Teacher _teacher = new Teacher();
     List<Teacher> _teachers = new List<Teacher>();
     
+    List<DisciplineGroupTeacher> _disciplineGroupTeachers = new List<DisciplineGroupTeacher>();
     public AddTeacher()
     {
         InitializeComponent();
@@ -54,9 +57,40 @@ public partial class AddTeacher : Window
         
         foreach (var item in selectedItems)
         {
+            var studentsId = ctx.Attestations.Where(it => it.IdDiscipline == item.Discipline.Id).Select(it => it.IdUser).ToList();
+            foreach (var id in studentsId)
+            {
+                var groupId = ctx.Students
+                    .Where(s => s.Id == id)
+                    .Select(s => s.IdGroup)
+                    .FirstOrDefault();
+
+                var group = ctx.Groups.FirstOrDefault(g => g.Id == groupId);
+
+                bool alreadyExists = _disciplineGroupTeachers.Any(dgt =>
+                    dgt.Group.Id == group.Id &&
+                    dgt.Discipline.Id == item.Discipline.Id &&
+                    dgt.Teacher.Id == _teacher.Id);
+
+                if (!alreadyExists)
+                {
+                    _disciplineGroupTeachers.Add(new DisciplineGroupTeacher()
+                    {
+                        Group = group,
+                        Teacher = _teacher,
+                        Discipline = item.Discipline
+                    });
+                }
+            }
+            
             var disc_teach = new DisciplineTeacher() { IdDiscipline = item.Discipline.Id, IdTeacher = lastTeacherId+1 };
             ctx.DisciplineTeachers.Add(disc_teach);
         }
+
+        foreach (var item in _disciplineGroupTeachers)
+        {
+            Console.WriteLine($"Discipline: {item.Discipline.Name} Teacher: {item.Teacher.Fio} Group: {item.Group.Id}");
+        }
         
         var changes = ctx.SaveChanges();
         
@@ -77,7 +111,9 @@ public partial class AddTeacher : Window
     
     private void ButtonBack_OnClick(object? sender, RoutedEventArgs e)
     {
-        Close(_teachers);
+        Result res = new Result(){Teachers = _teachers, DisciplineGroupTeachers = _disciplineGroupTeachers};
+        
+        Close(res);
     }
     
     public class DisciplinePresenter()

AdminWindow.axaml.cs

@@ -7,6 +7,7 @@ using Avalonia.Controls;
 using Avalonia.Interactivity;
 using Avalonia.Markup.Xaml;
 using kursovaya.Models;
+using kursovaya.ModelsLocal;
 
 namespace kursovaya;
 
@@ -15,7 +16,9 @@ public partial class AdminWindow : Window
     List<Discipline> Disciplines = new List<Discipline>();
     List<Group> Groups = new List<Group>();
     List<Teacher> Teachers = new List<Teacher>();
-    ObservableCollection<DisciplineGroupTeacher> DisciplineGroupTeachers = new ObservableCollection<DisciplineGroupTeacher>();
+    
+    public List<DisciplineGroupTeacher> dataSourceDisciplineGroupTeachers = new List<DisciplineGroupTeacher>();
+    public ObservableCollection<DisciplineGroupTeacher> DisciplineGroupTeachers = new ObservableCollection<DisciplineGroupTeacher>();
     public AdminWindow()
     {
         InitializeComponent();
@@ -35,38 +38,25 @@ public partial class AdminWindow : Window
             var groups = ctx.Groups.Where(g => ctx.Attestations.Any(at => ctx.Students.Any(s => s.Id == at.IdUser && s.IdGroup == g.Id) && at.IdDiscipline == discipline.Id));
             foreach (Group group in groups)
             {
-                DisciplineGroupTeachers.Add(new DisciplineGroupTeacher(){Teacher = teacher, Discipline = discipline, Group = group});
+                dataSourceDisciplineGroupTeachers.Add(new DisciplineGroupTeacher(){Teacher = teacher, Discipline = discipline, Group = group});
             }
         }
         
+        DisplayAll();
+        
         MultComboBox.ItemsSource = DisciplineGroupTeachers.Select(dg => dg.NameComboBox).ToList();
         FlatGrid.ItemsSource = DisciplineGroupTeachers;
-
     }
-
-    public class DisciplineGroupTeacher()
+    
+    public void DisplayAll()
     {
-        public Group Group { get; set; }
-        public Discipline Discipline { get; set; }
-        public Teacher Teacher { get; set; }
-        public string DisciplineName
+        var ctx = new DatabaseContext();
+        var temp = dataSourceDisciplineGroupTeachers;
+        DisciplineGroupTeachers.Clear();
+
+        foreach (var item in temp)
         {
-            get => Discipline.Name;
-        }
-        public int GroupId
-        {
-            get => Group.Id;
-        }
-        public string TeacherFio
-        {
-            get => Teacher.Fio;
-        }
-        public string NameComboBox
-        {
-            get
-            {
-                return $"{Discipline.Name} - {Group.Id} - {Teacher.Fio}";
-            }
+            DisciplineGroupTeachers.Add(item);
         }
     }
     
@@ -104,15 +94,11 @@ public partial class AdminWindow : Window
     
     private async void ButtonCheckTeachers_OnClick(object? sender, RoutedEventArgs e)
     {
-        // TeachersFromAdminWindow teachersFromAdminWindow = new TeachersFromAdminWindow();
-        // teachersFromAdminWindow.ShowDialog(this);
-        
         TeachersFromAdminWindow teachersFromAdminWindow = new TeachersFromAdminWindow();
-        var result = await teachersFromAdminWindow.ShowDialog<Boolean>(this);
-        if (result == true)
-        {
-            Display();
-        }
+        var result = await teachersFromAdminWindow.ShowDialog<List<DisciplineGroupTeacher>>(this);
+
+        dataSourceDisciplineGroupTeachers.AddRange(result);
+        DisplayAll();
     }
     
     private void ButtonCheckDiscipline_OnClick(object? sender, RoutedEventArgs e)

ModelsLocal/DisciplineGroupTeacher.cs

@@ -0,0 +1,30 @@
+using kursovaya.Models;
+
+namespace kursovaya.ModelsLocal;
+
+public class DisciplineGroupTeacher()
+{
+    public Group Group { get; set; }
+    public Discipline Discipline { get; set; }
+    public Teacher Teacher { get; set; }
+
+    public string DisciplineName
+    {
+        get => Discipline.Name;
+    }
+
+    public int GroupId
+    {
+        get => Group.Id;
+    }
+
+    public string TeacherFio
+    {
+        get => Teacher.Fio;
+    }
+
+    public string NameComboBox
+    {
+        get { return $"{Discipline.Name} - {Group.Id} - {Teacher.Fio}"; }
+    }
+}

ModelsLocal/Result.cs

@@ -0,0 +1,10 @@
+using System.Collections.Generic;
+using kursovaya.Models;
+
+namespace kursovaya.ModelsLocal;
+
+public class Result()
+{
+    public List<Teacher> Teachers { get; set; }
+    public List<DisciplineGroupTeacher> DisciplineGroupTeachers { get; set; }
+}

TeachersFromAdminWindow.axaml.cs

@@ -6,6 +6,7 @@ using Avalonia.Controls;
 using Avalonia.Interactivity;
 using Avalonia.Markup.Xaml;
 using kursovaya.Models;
+using kursovaya.ModelsLocal;
 
 namespace kursovaya;
 
@@ -13,7 +14,7 @@ public partial class TeachersFromAdminWindow : Window
 {
     public List<Teacher> dataSourceTeachers = new List<Teacher>();
     public ObservableCollection<Teacher> Teachers = new ObservableCollection<Teacher>();
-    List<Teacher> _addedTeachers = new List<Teacher>();
+    Result result = new Result();
     public TeachersFromAdminWindow()
     {
         InitializeComponent();
@@ -27,14 +28,7 @@ public partial class TeachersFromAdminWindow : Window
     
     private void ButtonBack_OnClick(object? sender, RoutedEventArgs e)
     {
-        if (_addedTeachers == null || _addedTeachers.Count == 0)
-        {
-            Close(true);
-        }
-        else
-        {
-            Close(false);
-        }
+        Close(result.DisciplineGroupTeachers);
     }
     
     public void DisplayTeachers()
@@ -52,12 +46,12 @@ public partial class TeachersFromAdminWindow : Window
     private async void ButtonAddTeacher_OnClick(object? sender, RoutedEventArgs e)
     {
         AddTeacher addTeacher = new AddTeacher();
-        _addedTeachers = await addTeacher.ShowDialog<List<Teacher>>(this);
-        if (_addedTeachers == null || _addedTeachers.Count == 0)
+        result = await addTeacher.ShowDialog<Result>(this);
+        if (result.Teachers == null || result.Teachers.Count == 0)
         {
             return;
         }
-        dataSourceTeachers.AddRange(_addedTeachers);
+        dataSourceTeachers.AddRange(result.Teachers);
         DisplayTeachers();
     }
 }

obj/Debug/net8.0/Avalonia/Resources.Inputs.cache

@@ -1 +1 @@
-f0de6e47f368c7d2b430389bae7c7fda5f65514e38af332e1f0fd91696366f73
+4a653792709c12e18c09bc6f0460d9f61d1fd7d180a73a62ac47c42063efe969

obj/Debug/net8.0/kursovaya.AssemblyInfo.cs

@@ -13,7 +13,7 @@ using System.Reflection;
 [assembly: System.Reflection.AssemblyCompanyAttribute("kursovaya")]
 [assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
 [assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
-[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+c5083481c68ef5cc39a2cfcc445063f2773e3a9f")]
+[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+d7abb5ffd689ebecb45a3eaa84e87dfd90e6d9f7")]
 [assembly: System.Reflection.AssemblyProductAttribute("kursovaya")]
 [assembly: System.Reflection.AssemblyTitleAttribute("kursovaya")]
 [assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]

obj/Debug/net8.0/kursovaya.AssemblyInfoInputs.cache

@@ -1 +1 @@
-63629f52d026f6c617a2e1d2be3f8b814551f6d1d0a2981d0c3782f8ad0ba5ad
+56b533d6bc40151d11e8da76022af04036771e41ff8ddd0fbff74168ace28e08

obj/Debug/net8.0/kursovaya.csproj.CoreCompileInputs.cache

@@ -1 +1 @@
-71f8c7885cc41c61509dddd287b6e947d22d2d15c24d98b288e9f7c66559ec2e
+c5932addac0a6bc3a167df371d96f37e6eca09a500d93ddafd26cb087e00fdef