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bgneal@75
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1 """
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bgneal@75
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2 Signal handlers for the forums application.
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3 """
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4 from django.db.models.signals import post_save
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5 from django.db.models.signals import post_delete
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6
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7 from forums.models import Forum, Topic, Post
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bgneal@232
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8 from forums.views.subscriptions import notify_topic_subscribers
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bgneal@390
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9 from forums.tools import auto_favorite, auto_subscribe
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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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23
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24
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25 def on_post_save(sender, **kwargs):
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26 if kwargs['created']:
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27 post = kwargs['instance']
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28
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29 # update the topic
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30 post.topic.post_count_update()
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31 post.topic.save()
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32
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33 # update the forum
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34 post.topic.forum.post_count_update()
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35 post.topic.forum.save()
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36
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bgneal@181
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37 # send out any email notifications
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38 notify_topic_subscribers(post)
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bgneal@181
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39
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bgneal@390
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40 # perform any auto-favorite and auto-subscribe actions for the new post
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bgneal@390
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41 auto_favorite(post)
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bgneal@390
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42 auto_subscribe(post)
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bgneal@390
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43
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44
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45 def on_post_delete(sender, **kwargs):
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46 post = kwargs['instance']
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47
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48 # update the topic
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bgneal@348
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49 try:
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50 post.topic.post_count_update()
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51 post.topic.save()
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52 except Topic.DoesNotExist:
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53 pass
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54 else:
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55 # update the forum
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56 try:
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57 post.topic.forum.post_count_update()
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58 post.topic.forum.save()
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59 except Forum.DoesNotExist:
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60 pass
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61
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62
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bgneal@260
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63 post_save.connect(on_topic_save, sender=Topic, dispatch_uid='forums.signals')
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64 post_delete.connect(on_topic_delete, sender=Topic, dispatch_uid='forums.signals')
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65
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66 post_save.connect(on_post_save, sender=Post, dispatch_uid='forums.signals')
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67 post_delete.connect(on_post_delete, sender=Post, dispatch_uid='forums.signals')
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