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import os
import re
import datetime
import logging
from forum.models import User, Question, Comment, QuestionSubscription, SubscriptionSettings, Answer
from forum.utils.mail import send_template_email
from django.utils.translation import ugettext as _
from forum.actions import AskAction, AnswerAction, CommentAction, AcceptAnswerAction, UserJoinsAction, QuestionViewAction
from forum import settings
from django.db.models import Q, F
def create_subscription_if_not_exists(question, user):
try:
subscription = QuestionSubscription.objects.get(question=question, user=user)
return subscription
except QuestionSubscription.MultipleObjectsReturned:
pass
except QuestionSubscription.DoesNotExist:
subscription = QuestionSubscription(question=question, user=user)
subscription.save()
return subscription
except Exception, e:
logging.error(e)
return False
def filter_subscribers(subscribers):
subscribers = subscribers.exclude(is_active=False)
if settings.DONT_NOTIFY_UNVALIDATED:
return subscribers.exclude(email_isvalid=False)
else:
return subscribers
def question_posted(action, new):
question = action.node
if not question.is_notifiable:
return
subscribers = User.objects.filter(
Q(subscription_settings__enable_notifications=True, subscription_settings__new_question='i') |
(Q(subscription_settings__new_question_watched_tags='i') &
Q(marked_tags__name__in=question.tagnames.split(' ')) &
Q(tag_selections__reason='good'))
).exclude(id=question.author.id).distinct()
subscribers = filter_subscribers(subscribers)
send_template_email(subscribers, "notifications/newquestion.html", {'question': question})
subscription = QuestionSubscription(question=question, user=question.author)
subscription.save()
new_subscribers = User.objects.filter(
Q(subscription_settings__all_questions=True) |
Q(subscription_settings__all_questions_watched_tags=True,
marked_tags__name__in=question.tagnames.split(' '),
tag_selections__reason='good'))
for user in new_subscribers:
create_subscription_if_not_exists(question, user)
AskAction.hook(question_posted)
def answer_posted(action, new):
answer = action.node
question = answer.question
logging.error("Answer posted: %s" % str(answer.is_notifiable))
if not answer.is_notifiable or not question.is_notifiable:
return
subscribers = question.subscribers.filter(
subscription_settings__enable_notifications=True,
subscription_settings__notify_answers=True,
subscription_settings__subscribed_questions='i'
).exclude(id=answer.author.id).distinct()
subscribers = filter_subscribers(subscribers)
send_template_email(subscribers, "notifications/newanswer.html", {'answer': answer})
create_subscription_if_not_exists(question, answer.author)
AnswerAction.hook(answer_posted)
def comment_posted(action, new):
comment = action.node
post = comment.parent
if not comment.is_notifiable or not post.is_notifiable:
return
if post.__class__ == Question:
question = post
else:
question = post.question
q_filter = Q(subscription_settings__notify_comments=True) | Q(subscription_settings__notify_comments_own_post=True, id=post.author.id)
inreply = re.search('@\w+', comment.comment)
if inreply is not None:
q_filter = q_filter | Q(subscription_settings__notify_reply_to_comments=True,
username__istartswith=inreply.group(0)[1:],
nodes__parent=post, nodes__node_type="comment")
subscribers = question.subscribers.filter(
q_filter, subscription_settings__subscribed_questions='i', subscription_settings__enable_notifications=True
).exclude(id=comment.user.id).distinct()
subscribers = filter_subscribers(subscribers)
send_template_email(subscribers, "notifications/newcomment.html", {'comment': comment})
create_subscription_if_not_exists(question, comment.user)
CommentAction.hook(comment_posted)
def answer_accepted(action, new):
question = action.node.question
if not question.is_notifiable:
return
subscribers = question.subscribers.filter(
subscription_settings__enable_notifications=True,
subscription_settings__subscribed_questions='i'
).exclude(id=action.node.nstate.accepted.by.id).distinct()
subscribers = filter_subscribers(subscribers)
send_template_email(subscribers, "notifications/answeraccepted.html", {'answer': action.node})
AcceptAnswerAction.hook(answer_accepted)
def member_joined(action, new):
subscribers = User.objects.filter(
subscription_settings__enable_notifications=True,
subscription_settings__member_joins='i'
).exclude(id=action.user.id).distinct()
subscribers = filter_subscribers(subscribers)
send_template_email(subscribers, "notifications/newmember.html", {'newmember': action.user})
UserJoinsAction.hook(member_joined)
def question_viewed(action, new):
if not action.viewuser.is_authenticated():
return
try:
subscription = QuestionSubscription.objects.get(question=action.node, user=action.viewuser)
subscription.last_view = datetime.datetime.now()
subscription.save()
except:
if action.viewuser.subscription_settings.questions_viewed:
subscription = QuestionSubscription(question=action.node, user=action.viewuser)
subscription.save()
QuestionViewAction.hook(question_viewed)
#todo: translate this
#record_answer_event_re = re.compile("You have received (a|\d+) .*new response.*")
#def record_answer_event(instance, created, **kwargs):
# if created:
# q_author = instance.question.author
# found_match = False
# #print 'going through %d messages' % q_author.message_set.all().count()
# for m in q_author.message_set.all():
## #print m.message
# # match = record_answer_event_re.search(m.message)
# if match:
# found_match = True
# try:
# cnt = int(match.group(1))
# except:
# cnt = 1
## m.message = u"You have received %d <a href=\"%s?sort=responses\">new responses</a>."\
# # % (cnt+1, q_author.get_profile_url())
#
# m.save()
# break
# if not found_match:
# msg = u"You have received a <a href=\"%s?sort=responses\">new response</a>."\
# % q_author.get_profile_url()
#
# q_author.message_set.create(message=msg)
#
#post_save.connect(record_answer_event, sender=Answer)