annotate wiki/receivers.py @ 953:8647a669edb4
Fix excessive cache usage for forum date/times.
Issue #84. Hitting the cache 30+ times while browsing the forums
to adjust all the dates/times into the user's time zone. Just
hit the user's profile and be done with it. It should be loaded.
| author |
Brian Neal <bgneal@gmail.com> |
| date |
Tue, 19 May 2015 21:08:45 -0500 |
| parents |
bd043677d527 |
| children |
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| rev |
line source |
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bgneal@626
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1 """Signal handlers for wiki integration.
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bgneal@626
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2
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bgneal@629
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3 We are interested in hearing about users logging in and out, so we can create
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bgneal@629
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4 and destroy an external cookie to allow access to the wiki.
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bgneal@629
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5
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bgneal@626
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6 """
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bgneal@626
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7 import logging
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bgneal@626
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8
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bgneal@626
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9 from django.contrib.auth.signals import user_logged_in, user_logged_out
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bgneal@626
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10
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bgneal@629
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11 from wiki.constants import SESSION_SET_MEMBER
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bgneal@626
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12
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bgneal@626
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13 logger = logging.getLogger(__name__)
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bgneal@626
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14
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bgneal@626
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15
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bgneal@626
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16 def login_callback(sender, request, user, **kwargs):
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bgneal@626
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17 """Signal callback function for a user logging in.
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bgneal@626
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18
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bgneal@626
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19 Sets a flag for the middleware to create an external cookie.
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bgneal@626
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20
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bgneal@626
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21 """
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bgneal@626
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22 logger.info('User login: %s', user.username)
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bgneal@626
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23
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bgneal@629
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24 request.wiki_set_cookie = True
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bgneal@626
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25
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bgneal@626
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26
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bgneal@626
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27 def logout_callback(sender, request, user, **kwargs):
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bgneal@626
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28 """Signal callback function for a user logging in.
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bgneal@626
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29
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bgneal@626
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30 Sets a flag for the middleware to delete the external cookie.
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bgneal@626
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31
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bgneal@627
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32 Since the user is about to logout, her session will be wiped out after
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bgneal@627
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33 this function returns. This forces us to set an attribute on the request
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bgneal@627
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34 object so that the response middleware can delete the wiki's cookie.
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bgneal@627
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35
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bgneal@626
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36 """
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bgneal@630
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37 if user:
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bgneal@630
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38 logger.info('User logout: %s', user.username)
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bgneal@626
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39
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bgneal@630
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40 # Remember what Redis set member to delete by adding an attribute to the
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bgneal@630
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41 # request object:
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bgneal@630
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42 request.wiki_delete_cookie = request.session.get(SESSION_SET_MEMBER)
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bgneal@626
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43
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bgneal@626
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44
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bgneal@923
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45 user_logged_in.connect(login_callback, dispatch_uid='wiki.receivers.login')
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bgneal@923
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46 user_logged_out.connect(logout_callback, dispatch_uid='wiki.receivers.logout')
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