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Refs #13167 -- Corrected a regression in the way non-existent variables are handled by {% if %} tags. Thanks to ohmi2 for pointing out the regression in 1.2, and Karen for the patch. 

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12954 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Russell Keith-Magee 2010-04-12 13:56:38 +00:00
parent 55c31fbdef
commit 2cebe4395e
2 changed files with 12 additions and 1 deletions
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7
django/template/defaulttags.py
View File

@ -243,7 +243,12 @@ class IfNode(Node):
yield node
def render(self, context):
if self.var.eval(context):
try:
var = self.var.eval(context)
except VariableDoesNotExist:
var = None
if var:
return self.nodelist_true.render(context)
else:
return self.nodelist_false.render(context)

6
tests/regressiontests/templates/tests.py
View File

@ -782,6 +782,12 @@ class Templates(unittest.TestCase):
'if-tag-error11': ("{% if 1 == %}yes{% endif %}", {}, template.TemplateSyntaxError),
'if-tag-error12': ("{% if a not b %}yes{% endif %}", {}, template.TemplateSyntaxError),
# Non-existent args
'if-tag-badarg01':("{% if x|default_if_none:y %}yes{% endif %}", {}, ''),
'if-tag-badarg02':("{% if x|default_if_none:y %}yes{% endif %}", {'y': 0}, ''),
'if-tag-badarg03':("{% if x|default_if_none:y %}yes{% endif %}", {'y': 1}, 'yes'),
'if-tag-badarg04':("{% if x|default_if_none:y %}yes{% else %}no{% endif %}", {}, 'no'),
# Additional, more precise parsing tests are in SmartIfTests
### IFCHANGED TAG #########################################################