16 lines
494 B
Python
16 lines
494 B
Python
from django.utils.crypto import get_random_string
|
|
from django.db.models import Sum
|
|
from django.db.models.functions import Coalesce
|
|
|
|
|
|
def query_sum(queryset, field):
|
|
return queryset.aggregate(s=Coalesce(Sum(field), 0))['s']
|
|
|
|
|
|
def generate_user_uid():
|
|
return get_random_string(length=12, allowed_chars='abcdefghijklmnopqrstuvwxyz0123456789')
|
|
|
|
|
|
def is_staff(request, user):
|
|
return user.is_authenticated and (user.is_superuser or request.conference.staff.filter(pk=user.pk).exists())
|