fix visual star bug; don't show rating if it is None

Author: LeonardBongard

frontend/templates/frontend/content/detail.html

@@ -97,11 +97,17 @@ <h5 class="modal-title" id="deleteContentModalLabel">{% trans "Delete" %} <i>{{
             {{ content.description|linebreaks }} <!-- resolves to s -->
         </div>
     </div>
-    <h5><a name="rating">{% trans "Rating" %}</a><span class="badge float-right text-right">{{ content.get_rate }}/5</span></h5>
+    <h5><a name="rating">{% trans "Rating" %}</a>
+        {% if content.get_rate != -1 %}
+            <span class="badge float-right text-right">{{ content.get_rate }}/5</span>
+        {% else %}
+            <span class="badge float-right text-right">No rating yet</span>
+        {% endif %}
+    </h5>
         <div class="starrating risingstar d-flex justify-content-end flex-row-reverse">
             {% for i in 5|rev_range %}
                 <input type="radio" id="star{{ i }}" name="rating" value="{{ i }}"
-                       {% if i <= user_rate %}class="active" {% endif %}/>
+                       {% if i <= content.get_rate %}class="active" {% endif %}/>
                 <label for="star{{ i }}" onclick="window.location.href='{% url 'frontend:rating' course.id topic.id content.id i %}'"></label>
             {% endfor %}
         </div>

frontend/templates/frontend/course/topic_contents.html

@@ -19,16 +19,14 @@
                         </a>
                         <div class="card-footer">
                             <span class="badge badge-primary">{{ content.language }}</span>
-                            &nbsp;&middot;&nbsp;
                             {% if content.tags.count > 0 %}
+                            &nbsp;&middot;&nbsp;
                                 {% for tag in content.tags.all %}
                                     <span class="badge badge-secondary">{{ tag }}</span>
                                 {% endfor %}
                             {% endif %}
+                            {% if content.get_rate != -1 %}
                             &nbsp;&middot;&nbsp;
-                            {% if content.get_rate == -1 %}
-                                <span class="badge badge-info"> ~ </span>
-                            {% else %}
                                 <span class="badge badge-info">{{ content.get_rate}}</span>
                             {% endif %}
                         </div>