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bgneal@75
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1 """
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bgneal@920
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2 Signal handlers for the forums application.
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bgneal@469
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3
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4 """
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bgneal@75
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5 from django.db.models.signals import post_save
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6 from django.db.models.signals import post_delete
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bgneal@181
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7
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bgneal@348
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8 from forums.models import Forum, Topic, Post
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bgneal@920
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9 import forums.latest
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10
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11
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12 def on_topic_save(sender, **kwargs):
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13 if kwargs['created']:
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14 topic = kwargs['instance']
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15 topic.forum.topic_count_update()
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16 topic.forum.save()
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17
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18
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19 def on_topic_delete(sender, **kwargs):
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20 topic = kwargs['instance']
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21 topic.forum.topic_count_update()
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22 topic.forum.save()
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bgneal@522
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23 forums.latest.notify_topic_delete(topic)
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24
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25
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26 def on_post_save(sender, **kwargs):
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27 if kwargs['created']:
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28 post = kwargs['instance']
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29
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30 # update the topic
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31 post.topic.post_count_update()
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32 post.topic.save()
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33
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34 # update the forum
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35 post.topic.forum.post_count_update()
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36 post.topic.forum.save()
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37
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38
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39 def on_post_delete(sender, **kwargs):
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40 post = kwargs['instance']
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41
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42 # update the topic
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bgneal@348
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43 try:
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44 post.topic.post_count_update()
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bgneal@348
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45 post.topic.save()
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bgneal@348
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46 except Topic.DoesNotExist:
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bgneal@348
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47 pass
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bgneal@348
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48 else:
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49 # update the forum
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bgneal@348
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50 try:
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51 post.topic.forum.post_count_update()
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bgneal@348
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52 post.topic.forum.save()
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bgneal@348
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53 except Forum.DoesNotExist:
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54 pass
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bgneal@75
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55
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bgneal@75
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56
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bgneal@920
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57 post_save.connect(on_topic_save, sender=Topic, dispatch_uid='forums.receivers')
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58 post_delete.connect(on_topic_delete, sender=Topic, dispatch_uid='forums.receivers')
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59 post_save.connect(on_post_save, sender=Post, dispatch_uid='forums.receivers')
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bgneal@920
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60 post_delete.connect(on_post_delete, sender=Post, dispatch_uid='forums.receivers')
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