talks count for each speakers

accounts/models.py

@@ -78,3 +78,7 @@ class Participation(PonyConfModel):
     @property
     def topic_set(self):
         return self.user.topic_set.filter(site=self.site)
+
+    @property
+    def talk_set(self):
+        return self.user.talk_set.filter(site=self.site)

proposals/templates/proposals/speaker_list.html

@@ -8,7 +8,10 @@
 
 <ul>
 {% for speaker in user_list %}
-    <li><a href="{% url 'show-speaker' username=speaker.username %}">{{ speaker.profile }}</a></li>
+    <li>
+        <a href="{% url 'show-speaker' username=speaker.username %}">{{ speaker.profile }}</a>
+        ({{ speaker.talk_set.count }} talk{{ speaker.talk_set.count|pluralize }})
+    </li>
 {% empty %}
     <li><i>No speakers.</i></li>
 {% endfor %}