Commit 54c313af authored by Malcolm Tredinnick's avatar Malcolm Tredinnick
Browse files

Added a quick regression test that shows why Meta.ordering and order_by() 

aren't always equivalent. This is documented, stable behaviour, so we should
ensure it doesn't change accidentally.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@8312 bcc190cf-cafb-0310-a4f2-bffc1f526a37
parent 942e5246

tests/regressiontests/queries/models.py

+7 −0
Original line number Diff line number Diff line
@@ -909,8 +909,15 @@ Traceback (most recent call last): 
...

FieldError: Infinite loop caused by ordering.



# Note that this doesn't cause an infinite loop, since the default ordering on

# the Tag model is empty (and thus defaults to using "id" for the related

# field).

>>> len(Tag.objects.order_by('parent'))

5



# ... but you can still order in a non-recursive fashion amongst linked fields

# (the previous test failed because the default ordering was recursive).

>>> LoopX.objects.all().order_by('y__x__y__x__id')

[]



"""