diff --git a/django/library/views.py b/django/library/views.py
index c770750..adbf76f 100644
--- a/django/library/views.py
+++ b/django/library/views.py
@@ -176,23 +176,17 @@ def favorite_quiz(request, pk):
             
             statement="Das Quiz '"+ favorite.quiz.name+ "' wurde erfolgreich zu den Favoriten hinzugefügt!"
             messages.success(request,statement )
+            favorite.save()
         else:
             favorite.favorite_date = None
-            
-            statement="Das Quiz '"+ favorite.quiz.name+ "' wurde erfolgreich von den  Favoriten entfernt!"
+            favorite.delete()
+            statement="Das Quiz '"+ favorite.quiz.name+ "' wurde erfolgreich von den Favoriten entfernt!"
             messages.error(request, statement)
     
-        favorite.save()
+        
     else:
        QivipQuizFavorite.objects.create(user=request.user, quiz=quiz, favorite=True, favorite_date=timezone.now())
-    """
-    referer = request.META.get('HTTP_REFERER')
-    if referer and 'library/' in referer:
-   
-        return redirect(request.META.get('HTTP_REFERER', 'library:overview_quiz'))
-    else:
-        return overview_quiz(request)
-    """
+
     return redirect(request.META.get('HTTP_REFERER', 'library:overview_quiz'))
     
     
@@ -255,33 +249,7 @@ def detail_quiz(request, pk):
         'detail':show_answers,
     }
     return render(request, 'library/detail_quiz.html', context)
-"""
-def modified(request, pk):
 
-        original_quiz = get_object_or_404(QivipQuiz, pk=pk)           
-        words=original_quiz.modified_description.split()
-        word_exist=0
-        print(original_quiz.creator.username)
-        print(request.user.username)
-       
-        for word in words:
-            
-            if word==request.user.username or word+","==request.user.username:
-                word_exist=1
-
-
-        if word_exist==0 and len(words)!=0 and request.user.username!=original_quiz.creator.username:
-                    original_quiz.modified_description  +=", "+ request.user.username
-                    
-                   
-        elif word_exist==0 and request.user.username!=original_quiz.creator.username:
-                original_quiz.modified_description  +=" "+ request.user.username
-                    
-        original_quiz.save()
-      
-        return redirect('library:detail_quiz', pk=pk)
-        
-"""
 
 @login_required
 def copy_quiz(request, pk):