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Code Issues 32 Releases Wiki Activity

Fixed #12240 - select_related doesn't work correctly when mixing nullable and non-nullable keys

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Thanks to embe for report and Alex for fix.



git-svn-id: http://code.djangoproject.com/svn/django/trunk@12719 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Luke Plant
2010-03-08 12:47:16 +00:00
parent 40c022c91e
commit 5e3a2e2f39
2 changed files with 12 additions and 9 deletions
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11
tests/regressiontests/null_fk/models.py
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@@ -4,7 +4,11 @@ Regression tests for proper working of ForeignKey(null=True).
from django.db import models
class SystemDetails(models.Model):
details = models.TextField()
class SystemInfo(models.Model):
system_details = models.ForeignKey(SystemDetails)
system_name = models.CharField(max_length=32)
class Forum(models.Model):
@@ -30,7 +34,8 @@ class Comment(models.Model):
__test__ = {'API_TESTS':"""
>>> s = SystemInfo.objects.create(system_name='First forum')
>>> d = SystemDetails.objects.create(details='First details')
>>> s = SystemInfo.objects.create(system_name='First forum', system_details=d)
>>> f = Forum.objects.create(system_info=s, forum_name='First forum')
>>> p = Post.objects.create(forum=f, title='First Post')
>>> c1 = Comment.objects.create(post=p, comment_text='My first comment')
@@ -55,4 +60,8 @@ None
>>> Comment.objects.select_related('post').filter(post__isnull=True)[0].post is None
True
>>> comments = Comment.objects.select_related('post__forum__system_info__system_details')
>>> [(c.id, c.comment_text, c.post) for c in comments]
[(1, u'My first comment', <Post: First Post>), (2, u'My second comment', None)]
"""}