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Fixed #19617 -- Refactored Form metaclasses to support more inheritance scenarios.

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Thanks apollo13, funkybob and mjtamlyn for the reviews.
This commit is contained in:
Loic Bistuer 2013-07-21 02:25:27 +07:00
parent 54cd930baf
commit ac5ec7b8bc
8 changed files with 105 additions and 42 deletions
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12
django/forms/widgets.py
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@ -131,12 +131,16 @@ def media_property(cls):
return property(_media)
class MediaDefiningClass(type):
"Metaclass for classes that can have media definitions"
def __new__(cls, name, bases, attrs):
new_class = super(MediaDefiningClass, cls).__new__(cls, name, bases,
attrs)
"""
Metaclass for classes that can have media definitions.
"""
def __new__(mcs, name, bases, attrs):
new_class = (super(MediaDefiningClass, mcs)
.__new__(mcs, name, bases, attrs))
if 'media' not in attrs:
new_class.media = media_property(new_class)
return new_class
@python_2_unicode_compatible