PP
members = Member.objects.filter(table=table)
if places <= members.count():
здесть будет 2 запроса ? к Member
Size: a a a
A
members = Member.objects.filter(table=table)
if places <= members.count():
p
MB
members = Member.objects.filter(table=table)
if places <= members.count():
p
>>> Test.objects.filter(id=99)
<QuerySet []>
>>> Test.objects.filter(id=99) is None
False
>>> Test.objects.filter(id=99) is True
False
>>> Test.objects.filter(id=99) is False
False
MB
>>> Test.objects.filter(id=99)
<QuerySet []>
>>> Test.objects.filter(id=99) is None
False
>>> Test.objects.filter(id=99) is True
False
>>> Test.objects.filter(id=99) is False
False
V💊
>>> Test.objects.filter(id=99)
<QuerySet []>
>>> Test.objects.filter(id=99) is None
False
>>> Test.objects.filter(id=99) is True
False
>>> Test.objects.filter(id=99) is False
False
.exists()
p
p
MB
DT
>>> Test.objects.filter(id=99)
<QuerySet []>
>>> Test.objects.filter(id=99) is None
False
>>> Test.objects.filter(id=99) is True
False
>>> Test.objects.filter(id=99) is False
False
is
проверяет на является ли то что слева тем что справаAO
A
A
AO
AO
AO
AO
A
BE