def __init__(self, from_date):
self.from_date = from_date
new_questions = Question.objects.filter_state(deleted=False).\
filter(added_at__gt=from_date).\
annotate(n_actions=models.Count('actions')).\
annotate(child_count=models.Count('all_children'))
hotness = lambda q: 3*q.child_count + q.n_actions
for q in new_questions:
q.hotness=hotness(q)
self.questions = sorted(new_questions, lambda q1, q2: q2.hotness - q1.hotness)
self.count = len(self.questions)
def get_for_user(self, user):
user_tags = list(user.marked_tags.filter(user_selections__reason='good'))
if len(user_tags) < TRY_N_USER_TAGS:
user_tags += list(Tag.objects.filter(models.Q(nodes__author=user) | models.Q(nodes__children__author=user)) \
.annotate(user_tag_usage_count=models.Count('name')).order_by('-user_tag_usage_count')[:TRY_N_USER_TAGS - len(user_tags)])
user_tag_names = set([t.name for t in user_tags])
subscriptions = user.subscriptions.filter(added_at__lt=self.from_date, last_activity_at__gt=models.F('questionsubscription__last_view')
).order_by('-questionsubscription__last_view')[:SUB_QUESTION_LIST_LENGTH]
unseen_questions = [q for q in self.questions if self.unseen_question(user, q)]
interesting = []
for q in unseen_questions:
if len(set(q.tagname_list()) & user_tag_names): interesting.append(q)
may_help = []
if len(interesting):
if len(interesting) > SUB_QUESTION_LIST_LENGTH:
may_help = interesting[SUB_QUESTION_LIST_LENGTH:][-SUB_QUESTION_LIST_LENGTH:]
interesting = interesting[:SUB_QUESTION_LIST_LENGTH]
else:
interesting = unseen_questions[:SUB_QUESTION_LIST_LENGTH]
return {'interesting': interesting, 'may_help': may_help, 'subscriptions': subscriptions}
def handle_noargs(self, **options):
try:
translation.activate(settings.LANGUAGE_CODE)
except:
logging.error(
"Unable to set the locale in the send emails cron job")
digest_control = EMAIL_DIGEST_FLAG.value
if digest_control is None:
digest_control = {
'LAST_DAILY':
datetime.datetime.now() - datetime.timedelta(days=1),
'LAST_WEEKLY':
datetime.datetime.now() - datetime.timedelta(days=1),
}
from_date = digest_control['LAST_DAILY']
digest_control['LAST_DAILY'] = datetime.datetime.now()
EMAIL_DIGEST_FLAG.set_value(digest_control)
users = User.objects.filter(
subscription_settings__enable_notifications=True,
subscription_settings__send_digest=True)
# Send digest only to active users
if settings.SEND_DIGEST_ONLY_TO_ACTIVE_USERS:
users = users.filter(is_active=True)
# Send digest only to users with validated emails
if settings.SEND_DIGEST_ONLY_TO_VALIDATED_USERS:
users = users.filter(email_isvalid=True)
new_members = User.objects.filter(
is_active=True, date_joined__gt=from_date).annotate(
n_actions=models.Count('actions')).order_by('-n_actions')
new_member_count = new_members.count()
# The number of the flagged content for the day
flagged_count = Flag.objects.filter(
flagged_at__gt=datetime.datetime.today() -
datetime.timedelta(days=1)).count()
if new_member_count >= SHOW_N_MORE_ACTIVE_NEW_MEMBERS:
new_members = new_members[:SHOW_N_MORE_ACTIVE_NEW_MEMBERS]
show_all_users = True
else:
show_all_users = False
digest = DigestQuestionsIndex(from_date)
if (not new_member_count) and (not digest.count):
return
send_template_email(users, "notifications/digest.html", locals())