#27821: Documentation on form validation is wrong
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Reporter: Christian Ullrich | Owner: nobody
Type: Bug | Status: new
Component: Documentation | Version: 1.10
Severity: Normal | Keywords:
Triage Stage: Unreviewed | Has patch: 0
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 0
UI/UX: 0 |
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The documentation on form validation (/ref/forms/validation/) has this to
say regarding the clean_<fieldname> method on a Form subclass:
This method should return the cleaned value obtained from
cleaned_data, regardless of whether it changed anything or not.
This is incorrect; the method should return the value to be used for
further processing, because its result is unconditionally put ''into''
cleaned_data:
(from django.forms.forms.Form._clean_fields():)
{{{
if hasattr(self, 'clean_%s' % name):
value = getattr(self, 'clean_%s' % name)()
self.cleaned_data[name] = value
}}}
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Ticket URL: <https://code.djangoproject.com/ticket/27821>
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