django order by
class Meta:
ordering = ('date',)django queryset count
# Returns the total number of entries in the database.
count = Entry.objects.count()
# Returns the number of entries whose headline contains 'Lennon'
count = Entry.objects.filter(headline__contains='Lennon').count()django 3.0 queryset examples
>>> Entry.objects.filter(
... headline__startswith='What'
... ).exclude(
... pub_date__gte=datetime.date.today()
... ).filter(
... pub_date__gte=datetime.date(2005, 1, 30)
... )Copyright © 2021 Codeinu
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