fix missing average_rating due to lack of dislikes

tubearchivist/home/templates/home/video.html

@@ -55,7 +55,9 @@
             <div>
                 <p>Views: {{ video.stats.view_count|intcomma }}</p>
                 <p class="thumb-icon like"><img src="{% static 'img/icon-thumb.svg' %}" alt="thumbs-up">: {{ video.stats.like_count|intcomma }}</p>
-                <p class="thumb-icon dislike"><img src="{% static 'img/icon-thumb.svg' %}" alt="thumbs-down">: {{ video.stats.dislike_count|intcomma }}</p>
+                {% if video.stats.dislike_count %}
+                    <p class="thumb-icon dislike"><img src="{% static 'img/icon-thumb.svg' %}" alt="thumbs-down">: {{ video.stats.dislike_count|intcomma }}</p>
+                {% endif %}
                 {% if video.stats.average_rating %}
                     <p class="rating-stars">Rating: 
                         {% for star in video.stats.average_rating %}

tubearchivist/home/views.py

@@ -875,6 +875,9 @@ class VideoView(View):
     @staticmethod
     def star_creator(rating):
         """convert rating float to stars"""
+        if not rating:
+            return False
+
         stars = []
         for _ in range(1, 6):
             if rating >= 0.75: