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django/tests/modeltests/known_related_objects/models.py
Aymeric Augustin 07fbc6ae0e Fixed #19547 -- Caching of related instances.
When &'ing or |'ing querysets, wrong values could be cached, and crashes
could happen.

Thanks Marc Tamlyn for figuring out the problem and writing the patch.
2013-01-02 22:21:46 +01:00

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Python

"""
Existing related object instance caching.
Test that queries are not redone when going back through known relations.
"""
from django.db import models
class Tournament(models.Model):
name = models.CharField(max_length=30)
class Organiser(models.Model):
name = models.CharField(max_length=30)
class Pool(models.Model):
name = models.CharField(max_length=30)
tournament = models.ForeignKey(Tournament)
organiser = models.ForeignKey(Organiser)
class PoolStyle(models.Model):
name = models.CharField(max_length=30)
pool = models.OneToOneField(Pool)