app/Http/Requests/StudentPostRequest.php

@@ -2,7 +2,9 @@
 
 namespace App\Http\Requests;
 
+use App\Models\User;
 use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
 
 class StudentPostRequest extends FormRequest
 {
@@ -27,7 +29,7 @@ class StudentPostRequest extends FormRequest
             'middle_name' => 'required|max:255',
             'birthday' => 'required|date',
             'grade_id' => 'required|exists:grades,id',
-            'email' => 'required|max:255|lowercase|unique:users,email',
+            'email' => ['required', 'string', 'lowercase', 'email', 'max:255', Rule::unique(User::class)->ignore($this->route('student')?->user->id)],
             'password' => 'required|max:255',
         ];
     }

app/Http/Requests/TeacherPostRequest.php

@@ -2,7 +2,9 @@
 
 namespace App\Http\Requests;
 
+use App\Models\User;
 use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
 
 class TeacherPostRequest extends FormRequest
 {
@@ -26,7 +28,7 @@ class TeacherPostRequest extends FormRequest
             'last_name' => 'required|max:255',
             'middle_name' => 'required|max:255',
             'birthday' => 'required|date',
-            'email' => 'required|max:255|lowercase|unique:users,email',
+            'email' => ['required', 'string', 'lowercase', 'email', 'max:255', Rule::unique(User::class)->ignore($this->route('teacher')?->user->id)],
             'password' => 'required|max:255',
         ];
     }

app/Policies/GradePolicy.php

@@ -5,6 +5,7 @@ namespace App\Policies;
 use App\Models\Admin;
 use App\Models\Grade;
 use App\Models\Student;
+use App\Models\Teacher;
 use App\Models\User;
 
 class GradePolicy
@@ -48,4 +49,14 @@ class GradePolicy
     {
         return $user->userable_type == Admin::class;
     }
+
+    public function journal(User $user)
+    {
+        return $user->userable_type == Teacher::class;
+    }
+
+    public function list(User $user)
+    {
+        return $user->userable_type == Teacher::class;
+    }
 }

resources/views/grades/index.blade.php

@@ -41,11 +41,13 @@
                                             <a href="{{ route('grades.lessons.index', $grade) }}" class="btn btn-primary">Занятия</a>
                                         </div>
                                     </td>
+                                    @can('list', \App\Models\Grade::class)
                                         <td>
                                             <div>
                                                 <a href="{{ route('list-students', $grade) }}" class="btn btn-info">Списки учеников</a>
                                             </div>
                                         </td>
+                                    @endcan
                                     @can('update', $grade)
                                         <td>
                                             <div>

resources/views/grades/show.blade.php

@@ -35,11 +35,13 @@
                                             {{ $subject->name }}
                                         </div>
                                     </td>
+                                    @can('journal', \App\Models\Grade::class)
                                         <td>
                                             <div>
                                                 <a href="{{ route('grades.subjects.journal', [$grade, $subject]) }}" class="btn btn-primary">Журнал</a>
                                             </div>
                                         </td>
+                                    @endcan
                                     @can('delete', $grade)
                                         <td>
                                             <form action="{{ route('grades.subjects.destroy', [$grade, $subject]) }}" method="POST" style="display: inline-block;">

resources/views/teachers/index.blade.php

@@ -69,7 +69,7 @@
                             <p>Учителя отсутствуют</p>
                         @endif
                     </div>
-                    @can('create', Teacher::class)
+                    @can('create', \App\Models\Teacher::class)
                         <div class="card-footer">
                             <a href="{{ route('teachers.create') }}" class="btn btn-success">Добавить</a>
                         </div>