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Project description

This is a small Django utility module to allow you to correctly annotate or aggregate based on the sum of a Boolean field. This answers the question “how many objects do I have related to this object where foo is True.


Usage is pretty simple:

from django_boolean_sum import BooleanSum


This will return instances of MyModel with a related_count attribute, which is the number of related instances which have priority=True.


From PyPI:

$ pip install django-boolean-sum


This has been tested solely on PostgreSQL and Sqlite, using Django 1.4. It also depends on internal Django components which are not documented, and therefore are subject to possible breaking changes in future versions.

It is very naive about multi-databases, assuming that the query is being made for the backend of the default database.


Pull Request it.

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