Improved deprecation warning for change in form boolean values.

refs #20684

Thanks jacob, jcd, and shai for the suggestions.
This commit is contained in:
Tim Graham 2013-09-10 14:23:31 -04:00
parent 4e96dac450
commit 8165c2cfd1
1 changed files with 12 additions and 5 deletions

View File

@ -23,11 +23,18 @@ def flatatt(attrs):
The result is passed through 'mark_safe'.
"""
if [v for v in attrs.values() if v is True or v is False]:
warnings.warn(
'The meaning of boolean values for widget attributes will change in Django 1.8',
DeprecationWarning
)
for attr_name, value in attrs.items():
if type(value) is bool:
warnings.warn(
"In Django 1.8, widget attribute %(attr_name)s=%(bool_value)s "
"will %(action)s. To preserve current behavior, use the "
"string '%(bool_value)s' instead of the boolean value." % {
'attr_name': attr_name,
'action': "be rendered as '%s'" % attr_name if value else "not be rendered",
'bool_value': value,
},
DeprecationWarning
)
return format_html_join('', ' {0}="{1}"', sorted(attrs.items()))
@python_2_unicode_compatible