Fixed #10733 -- Added a regression test for queries with multiple references to multiple foreign keys in only() clauses. Thanks to mrts for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@10928 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2009-06-06 12:16:06 +00:00
parent 512ee0f528
commit fa43a32bcb
1 changed files with 21 additions and 1 deletions

View File

@ -84,7 +84,8 @@ Some further checks for select_related() and inherited model behaviour
(regression for #10710). (regression for #10710).
>>> c1 = Child.objects.create(name="c1", value=42) >>> c1 = Child.objects.create(name="c1", value=42)
>>> obj = Leaf.objects.create(name="l1", child=c1) >>> c2 = Child.objects.create(name="c2", value=37)
>>> obj = Leaf.objects.create(name="l1", child=c1, second_child=c2)
>>> obj = Leaf.objects.only("name", "child").select_related()[0] >>> obj = Leaf.objects.only("name", "child").select_related()[0]
>>> obj.child.name >>> obj.child.name
@ -101,5 +102,24 @@ types as their non-deferred versions (bug #10738).
>>> c1 is c2 is c3 >>> c1 is c2 is c3
True True
# Regression for #10733 - only() can be used on a model with two foreign keys.
>>> results = Leaf.objects.all().only('name', 'child', 'second_child').select_related()
>>> results[0].child.name
u'c1'
>>> results[0].second_child.name
u'c2'
>>> results = Leaf.objects.all().only('name', 'child', 'second_child', 'child__name', 'second_child__name').select_related()
>>> results[0].child.name
u'c1'
>>> results[0].second_child.name
u'c2'
# Finally, we need to flush the app cache for the defer module.
# Using only/defer creates some artifical entries in the app cache
# that messes up later tests. Purge all entries, just to be sure.
>>> from django.db.models.loading import cache
>>> cache.app_models['defer_regress'] = {}
""" """
} }