fix role permission show grade

app/Http/Controllers/CourseController.php

@@ -145,6 +145,10 @@ class CourseController extends Controller
      * @return grade
      */
     public function grade($id_course) {
+        if (Auth::user()->role == 0) {
+            return redirect()->route('course', ['id_course' => $id_course, 'msg' => 6]);
+        }
+
         $enrolled_id = DB::table('user_course')->where('id_course', $id_course)->pluck('id_user');
 
         $topics = DB::table('topics')->where('id_course', $id_course)->get();

resources/views/course.blade.php

@@ -255,8 +255,10 @@
                     @foreach($students as $student)
                         {{ $student }} <br/>
                     @endforeach
-                    <br/>
-                    <a href="<?php echo $topic->id_course; ?>/grade" class="btn btn-primary" role="button">Lihat Nilai</a>
+                    @if(Auth::user()->role == 1)
+                        <br/>
+                        <a href="<?php echo $topic->id_course; ?>/grade" class="btn btn-primary" role="button">Lihat Nilai</a>
+                    @endif
                 </div>
             </div>
         </div>