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Fixed #16383 -- Raised the AttributeError raised in property of an object when used in a template.

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Thanks maraujop for the report and Hiroki and Tim Graham for review.
This commit is contained in:
Anubhav Joshi 2014-07-26 16:30:54 +05:30 • committed by Tim Graham
parent 9d9f0acd7e
commit 0dd05c9e66
2 changed files with 13 additions and 3 deletions
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5
django/template/base.py
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@ -773,7 +773,10 @@ class Variable(object):
if isinstance(current, BaseContext) and getattr(type(current), bit): if isinstance(current, BaseContext) and getattr(type(current), bit):
raise AttributeError raise AttributeError
current = getattr(current, bit) current = getattr(current, bit)
except (TypeError, AttributeError): except (TypeError, AttributeError) as e:
# Reraise an AttributeError raised by a @property
if isinstance(e, AttributeError) and not isinstance(current, BaseContext) and bit in dir(current):
raise
try: # list-index lookup try: # list-index lookup
current = current[int(bit)] current = current[int(bit)]
except (IndexError, # list index out of range except (IndexError, # list index out of range

11
tests/template_tests/tests.py
View file

@ -110,13 +110,17 @@ class SomeClass:
raise SomeOtherException raise SomeOtherException
raise KeyError raise KeyError
@property
def silent_fail_attribute(self): def silent_fail_attribute(self):
raise SomeException raise SomeException
silent_fail_attribute = property(silent_fail_attribute)
@property
def noisy_fail_attribute(self): def noisy_fail_attribute(self):
raise SomeOtherException raise SomeOtherException
noisy_fail_attribute = property(noisy_fail_attribute)
@property
def attribute_error_attribute(self):
raise AttributeError
class OtherClass: class OtherClass:
@ -820,6 +824,9 @@ class TemplateTests(TestCase):
'filter-syntax23': (r'1{{ var.noisy_fail_key }}2', {"var": SomeClass()}, (SomeOtherException, SomeOtherException)), 'filter-syntax23': (r'1{{ var.noisy_fail_key }}2', {"var": SomeClass()}, (SomeOtherException, SomeOtherException)),
'filter-syntax24': (r'1{{ var.noisy_fail_attribute }}2', {"var": SomeClass()}, (SomeOtherException, SomeOtherException)), 'filter-syntax24': (r'1{{ var.noisy_fail_attribute }}2', {"var": SomeClass()}, (SomeOtherException, SomeOtherException)),
# #16383 - A @property that raises AttributeError should not fail loudly.
'filter-syntax25': ('{{ var.attribute_error_attribute }}', {"var": SomeClass()}, (AttributeError)),
### COMMENT SYNTAX ######################################################## ### COMMENT SYNTAX ########################################################
'comment-syntax01': ("{# this is hidden #}hello", {}, "hello"), 'comment-syntax01': ("{# this is hidden #}hello", {}, "hello"),
'comment-syntax02': ("{# this is hidden #}hello{# foo #}", {}, "hello"), 'comment-syntax02': ("{# this is hidden #}hello{# foo #}", {}, "hello"),