Author: mtredinnick
Date: 2007-10-03 20:12:00 -0500 (Wed, 03 Oct 2007)
New Revision: 6450
Modified:
django/trunk/django/newforms/widgets.py
Log:
Added a __deepcopy__() method to the Widget class in order to avoid a number of
easy-to-trigger problems when copying Widget subclasses. Subclasses which are
intended to have extra mutable fields should override this method. Refs #5505.
Modified: django/trunk/django/newforms/widgets.py
===================================================================
--- django/trunk/django/newforms/widgets.py 2007-10-03 22:21:43 UTC (rev
6449)
+++ django/trunk/django/newforms/widgets.py 2007-10-04 01:12:00 UTC (rev
6450)
@@ -7,7 +7,9 @@
except NameError:
from sets import Set as set # Python 2.3 fallback
+import copy
from itertools import chain
+
from django.utils.datastructures import MultiValueDict
from django.utils.html import escape
from django.utils.translation import ugettext
@@ -32,6 +34,12 @@
else:
self.attrs = {}
+ def __deepcopy__(self, memo):
+ obj = copy.copy(self)
+ obj.attrs = self.attrs.copy()
+ memo[id(self)] = obj
+ return obj
+
def render(self, name, value, attrs=None):
"""
Returns this Widget rendered as HTML, as a Unicode string.
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