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[3.1.x] Refs #31720 -- Added examples to BoolAnd() and BoolOr() documentation.

Backport of a2e621b14e85836362b7fc0e6b1bf7d7ff98e42b from master
This commit is contained in:
David Chorpash 2020-07-20 10:15:53 +02:00 committed by Mariusz Felisiak
parent f91ba43ebf
commit 5360f002f8

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@ -75,6 +75,20 @@ General-purpose aggregation functions
Returns ``True``, if all input values are true, ``None`` if all values are
null or if there are no values, otherwise ``False`` .
Usage example::
class Comment(models.Model):
body = models.TextField()
published = models.BooleanField()
rank = models.IntegerField()
>>> from django.db.models import BooleanField, Q
>>> from django.contrib.postgres.aggregates import BoolAnd
>>> Comment.objects.aggregate(booland=BoolAnd('published'))
{'booland': False}
>>> Comment.objects.aggregate(booland=BoolAnd(Q(rank__lt=100), output_field=BooleanField()))
{'booland': True}
``BoolOr``
----------
@ -83,6 +97,20 @@ General-purpose aggregation functions
Returns ``True`` if at least one input value is true, ``None`` if all
values are null or if there are no values, otherwise ``False``.
Usage example::
class Comment(models.Model):
body = models.TextField()
published = models.BooleanField()
rank = models.IntegerField()
>>> from django.db.models import BooleanField, Q
>>> from django.contrib.postgres.aggregates import BoolOr
>>> Comment.objects.aggregate(boolor=BoolOr('published'))
{'boolor': True}
>>> Comment.objects.aggregate(boolor=BoolOr(Q(rank__gt=2), output_field=BooleanField()))
{'boolor': False}
``JSONBAgg``
------------