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Fixed #16211 -- Added comparison and negation ops to F() expressions

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Work done by Walter Doekes and Trac alias knoeb. Reviewed by Simon
Charette.
This commit is contained in:
Anssi Kääriäinen
2012-09-30 17:51:06 +03:00
parent ddd7d1af20
commit 28abf5f0eb
7 changed files with 150 additions and 22 deletions
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8
django/utils/tree.py
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@@ -88,8 +88,12 @@ class Node(object):
Otherwise, the whole tree is pushed down one level and a new root
connector is created, connecting the existing tree and the new node.
"""
if node in self.children and conn_type == self.connector:
return
# Using for loop with 'is' instead of 'if node in children' so node
# __eq__ method doesn't get called. The __eq__ method can be overriden
# by subtypes, for example the F-expression.
for child in self.children:
if node is child and conn_type == self.connector:
return
if len(self.children) < 2:
self.connector = conn_type
if self.connector == conn_type: