edited tag code

application/models.py

@@ -4,7 +4,7 @@ from django.utils import timezone
 from taggit.managers import TaggableManager
 
 class CustomUser(models.Model):
-    user = models.OneToOneField(User, null = True, on_delete=models.CASCADE)
+    user = models.OneToOneField('auth.User', null = True, on_delete=models.CASCADE)
     tags = TaggableManager()
 
 

application/views.py

@@ -79,6 +79,7 @@ def post_edit(request, pk):
             post = form.save(commit=False)
             post.author = request.user
             post.save()
+            form.save_m2m()
             return redirect('post_detail', pk=post.pk)
     else:
         form = PostForm(instance=post)