diff --git a/app/Http/Controllers/Admin/CourseAssignmentController.php b/app/Http/Controllers/Admin/CourseAssignmentController.php
index ef716c2..9fd49c1 100755
--- a/app/Http/Controllers/Admin/CourseAssignmentController.php
+++ b/app/Http/Controllers/Admin/CourseAssignmentController.php
@@ -69,11 +69,32 @@ class CourseAssignmentController extends Controller
             'end_date' => 'nullable|date|after:start_date',
             'note' => 'nullable|string',
             'is_active' => 'boolean',
+            'assignment_ids' => 'nullable|string',  // Для обновления существующих
         ]);
         
         $validated['created_by'] = auth()->id();
         $validated['is_active'] = $request->boolean('is_active');
         
+        // Если это обновление существующих назначений
+        if (!empty($validated['assignment_ids'])) {
+            $assignmentIds = array_map('intval', array_filter(explode(',', $validated['assignment_ids'])));
+            
+            CourseAssignment::whereIn('id', $assignmentIds)->update([
+                'course_id' => !empty($validated['course_ids']) 
+                    ? explode(',', $validated['course_ids'])[0] 
+                    : null,
+                'start_date' => $validated['start_date'],
+                'end_date' => $validated['end_date'] ?? null,
+                'note' => $validated['note'] ?? null,
+            ]);
+            
+            if ($request->ajax()) {
+                return response()->json(['success' => true, 'message' => 'Обновлено']);
+            }
+            
+            return redirect()->back()->with('success', 'Назначение обновлено');
+        }
+        
         // Определяем тип назначения по выбранным элементам
         if (empty($validated['type'])) {
             if (!empty($validated['user_ids'])) {
@@ -187,12 +208,27 @@ class CourseAssignmentController extends Controller
         $assignments = $query->with(['course', 'user', 'group', 'organization', 'creator'])->get();
         $courseModel = $assignments->first()?->course ?? Course::find($course);
         
+        // Проверяем можно ли редактировать (нет ли начатых тестов)
+        $canEditCourse = true;
+        $assignmentIds = $assignments->pluck('id')->toArray();
+        
+        // Проверяем есть ли начатые тесты у назначений
+        if (!empty($assignmentIds)) {
+            // Проверяем через тесты и результаты
+            $hasStartedTests = \DB::table('test_results')
+                ->whereIn('assignment_id', $assignmentIds)
+                ->whereNotNull('started_at')
+                ->exists();
+            
+            $canEditCourse = !$hasStartedTests;
+        }
+        
         // Группируем по типам
         $individual = $assignments->where('type', 'individual');
         $groups = $assignments->where('type', 'group');
         $organizations = $assignments->where('type', 'organization');
         
-        return view('admin.course-assignments.show', compact('courseModel', 'assignments', 'individual', 'groups', 'organizations', 'start_date', 'end_date'));
+        return view('admin.course-assignments.show', compact('courseModel', 'assignments', 'individual', 'groups', 'organizations', 'start_date', 'end_date', 'canEditCourse'));
     }
 
     public function destroy(CourseAssignment $course_assignment)
diff --git a/resources/views/admin/course-assignments/show.blade.php b/resources/views/admin/course-assignments/show.blade.php
index edc39a9..b1d6285 100644
--- a/resources/views/admin/course-assignments/show.blade.php
+++ b/resources/views/admin/course-assignments/show.blade.php
@@ -219,6 +219,7 @@
         <div class="modal-content">
             <form action="{{ route('admin.course-assignments.store') }}" method="POST">
                 @csrf
+                <input type="hidden" name="assignment_ids" value="{{ $assignments->pluck('id')->implode(',') }}">
                 <input type="hidden" name="course_ids" value="{{ $courseModel->id }}">
                 <input type="hidden" name="start_date" value="{{ $start_date }}">
                 <div class="modal-header">
@@ -226,6 +227,39 @@
                     <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
                 </div>
                 <div class="modal-body">
+                    @if($canEditCourse)
+                    <div class="mb-3">
+                        <label class="form-label">Курс</label>
+                        <x-tags-input
+                            name="course_ids"
+                            url="{{ route('api.courses.search') }}"
+                            placeholder="Начните вводить название курса..."
+                            badge_color="dark"
+                            :value="[$courseModel->id]"
+                        />
+                        <small class="text-muted">Можно изменить курс</small>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label">Дата начала *</label>
+                        <input type="date" name="start_date" class="form-control" value="{{ $start_date }}" required>
+                    </div>
+                    @else
+                    <div class="alert alert-warning">
+                        <i class="bi bi-exclamation-triangle"></i>
+                        <strong>Нельзя изменить курс и дату начала!</strong>
+                        <br>
+                        <small>Уже есть начатые тесты. Для изменения курса создайте новое назначение.</small>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label">Курс</label>
+                        <input type="text" class="form-control" value="{{ $courseModel->title }}" disabled>
+                    </div>
+                    <div class="mb-3">
+                        <label class="form-label">Дата начала</label>
+                        <input type="text" class="form-control" value="{{ \Carbon\Carbon::parse($start_date)->format('d.m.Y') }}" disabled>
+                    </div>
+                    @endif
+                    
                     <div class="mb-3">
                         <label class="form-label">Дата окончания</label>
                         <input type="date" name="end_date" class="form-control" value="{{ $end_date }}">