PonyConf/proposals/utils.py
2016-07-09 22:59:41 +02:00

17 lines
605 B
Python

from django.db.models import Q, Sum
from django.db.models.functions import Coalesce
from django.contrib.sites.shortcuts import get_current_site
from accounts.models import Participation
def query_sum(queryset, field):
return queryset.aggregate(s=Coalesce(Sum(field), 0))['s']
def allowed_talks(talks, request):
participation = Participation.objects.get(site=get_current_site(request), user=request.user)
if not participation.is_orga():
talks = talks.filter(Q(topics__reviewers=participation.user) | Q(speakers=request.user) | Q(proposer=request.user))
return talks.distinct()