fix after changing null -> blank

templates/watchlist/movie_detail.html

@@ -14,7 +14,7 @@
     <p>Total score: {{ movie.score }}, seen by: {{ movie.seen_score }}.
     <ul>
         {% for vote in votes %}
-        <li>{{vote.user.username}} {% if vote.seen %}(seen){% endif %} &ndash; {% if vote.vote == 1 %}👍{% elif vote.vote == 0 %}No opinion{% elif vote.vote == -1 %}👎{%endif%}{% if vote.comment is not None %} &ndash; {{vote.comment}}{% endif %}</li>
+        <li>{{vote.user.username}} {% if vote.seen %}(seen){% endif %} &ndash; {% if vote.vote == 1 %}👍{% elif vote.vote == 0 %}No opinion{% elif vote.vote == -1 %}👎{%endif%}{% if vote.comment != "" %} &ndash; {{vote.comment}}{% endif %}</li>
         {% endfor %}
     </ul>
     {% endif %}

watchlist/tests/test_views.py

@@ -166,10 +166,10 @@ class VoteTests(TestCase):
             with self.subTest(comment=comment):
                 response = self.client.post(reverse('watchlist:vote', args=(m.id,)), data={"vote": "0", "comment": comment})
                 mv = m.movievote_set.get(user=self.user)
-                self.assertEqual(mv.comment, None if comment == "" else comment)
+                self.assertEqual(mv.comment, comment)
         with self.subTest(comment=None):
             response = self.client.post(reverse('watchlist:vote', args=(m.id,)), data={"vote": "0"})
             mv = m.movievote_set.get(user=self.user)
-            self.assertEqual(mv.comment, None)
+            self.assertEqual(mv.comment, "")
 
 

watchlist/views.py

@@ -56,9 +56,7 @@ def vote(request, pk):
     user_vote.vote = request.POST['vote']
     user_vote.seen = request.POST.get('seen', False) == "on"    
     comment = request.POST.get('comment', '').strip()
-    if comment != '' or user_vote.comment is not None:
-        if comment == '':
-            comment = None
+    if comment != '' or user_vote.comment != "":
         user_vote.comment = comment
     user_vote.save()
     return HttpResponseRedirect(reverse('watchlist:index'))