Mercurial > public > sg101
comparison forums/signals.py @ 920:5902dc5e58a3
Forums app refactor.
For Django 1.7.7 upgrade.
| author | Brian Neal <bgneal@gmail.com> |
|---|---|
| date | Tue, 07 Apr 2015 20:11:32 -0500 |
| parents | ee87ea74d46b |
| children |
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| 919:0b6bf9c5a982 | 920:5902dc5e58a3 |
|---|---|
| 1 """ | 1 """ |
| 2 Signal handlers & signals for the forums application. | 2 Signals for the forums application. |
| 3 | 3 |
| 4 """ | 4 """ |
| 5 from django.db.models.signals import post_save | |
| 6 from django.db.models.signals import post_delete | |
| 7 import django.dispatch | 5 import django.dispatch |
| 8 | 6 |
| 9 from forums.models import Forum, Topic, Post | |
| 10 | 7 |
| 11 | |
| 12 def on_topic_save(sender, **kwargs): | |
| 13 if kwargs['created']: | |
| 14 topic = kwargs['instance'] | |
| 15 topic.forum.topic_count_update() | |
| 16 topic.forum.save() | |
| 17 | |
| 18 | |
| 19 def on_topic_delete(sender, **kwargs): | |
| 20 topic = kwargs['instance'] | |
| 21 topic.forum.topic_count_update() | |
| 22 topic.forum.save() | |
| 23 forums.latest.notify_topic_delete(topic) | |
| 24 | |
| 25 | |
| 26 def on_post_save(sender, **kwargs): | |
| 27 if kwargs['created']: | |
| 28 post = kwargs['instance'] | |
| 29 | |
| 30 # update the topic | |
| 31 post.topic.post_count_update() | |
| 32 post.topic.save() | |
| 33 | |
| 34 # update the forum | |
| 35 post.topic.forum.post_count_update() | |
| 36 post.topic.forum.save() | |
| 37 | |
| 38 | |
| 39 def on_post_delete(sender, **kwargs): | |
| 40 post = kwargs['instance'] | |
| 41 | |
| 42 # update the topic | |
| 43 try: | |
| 44 post.topic.post_count_update() | |
| 45 post.topic.save() | |
| 46 except Topic.DoesNotExist: | |
| 47 pass | |
| 48 else: | |
| 49 # update the forum | |
| 50 try: | |
| 51 post.topic.forum.post_count_update() | |
| 52 post.topic.forum.save() | |
| 53 except Forum.DoesNotExist: | |
| 54 pass | |
| 55 | |
| 56 | |
| 57 post_save.connect(on_topic_save, sender=Topic, dispatch_uid='forums.signals') | |
| 58 post_delete.connect(on_topic_delete, sender=Topic, dispatch_uid='forums.signals') | |
| 59 | |
| 60 post_save.connect(on_post_save, sender=Post, dispatch_uid='forums.signals') | |
| 61 post_delete.connect(on_post_delete, sender=Post, dispatch_uid='forums.signals') | |
| 62 | |
| 63 | |
| 64 # Signals for the forums application. | |
| 65 # | |
| 66 # This signal is sent when a topic has had its textual content (title) changed. | 8 # This signal is sent when a topic has had its textual content (title) changed. |
| 67 # The provided arguments are: | 9 # The provided arguments are: |
| 68 # sender - the topic model instance | 10 # sender - the topic model instance |
| 69 # created - True if the topic is new, False if updated | 11 # created - True if the topic is new, False if updated |
| 70 | 12 |
| 106 """ | 48 """ |
| 107 Sends the post_content_update signal for an updated post instance. | 49 Sends the post_content_update signal for an updated post instance. |
| 108 | 50 |
| 109 """ | 51 """ |
| 110 post_content_update.send_robust(post, created=False) | 52 post_content_update.send_robust(post, created=False) |
| 111 | |
| 112 | |
| 113 # Avoid circular imports | |
| 114 import forums.latest |