#15581: MultipleChoiceInput not validating choices set after field definition
(with
example)
---------------------------------+---------------------------
Reporter: whardier | Owner: nobody
Status: new | Milestone:
Component: Forms | Version: 1.3-alpha
Keywords: MultipleChoiceField | Triage Stage: Unreviewed
Has patch: 0 |
---------------------------------+---------------------------
It appears as though some validation is being done as a Field is
instantiated.. or the choices are not being migrated to a variable used
for validation later on per class. I'm hoping to discover the reason
behind this not working as expected.
In the example below I am setting choices for a MultipleChoiceField after
creating the field instance 'creators':
{{{
>>> TestForm = forms.Form(data={u'creators': [u'12', u'7']})
>>> TestForm.fields['creators'] = forms.MultipleChoiceField()
>>> TestForm.fields['creators'].widget.choices = [(x.id, unicode(x)) for x
in User.objects.filter(submission__survey=1).distinct()]
>>> for choice in TestForm.fields['creators'].widget.choices:
... print choice
...
(6L, u'jeffspencer')
(1L, u'shanespencer')
(12L, u'kjohnson')
(10L, u'plomonaco')
(7L, u'shanestewart')
(13L, u'dtollison')
(11L, u'khaney')
(16L, u'mbritt')
(14L, u'roberteoll')
(9L, u'thomasdunlap')
(18L, u'jsmith')
(22L, u'willeagle')
(15L, u'mlaselle')
>>> TestForm.is_valid()
False
>>> TestForm.errors
{'creators': [u'Select a valid choice. 12 is not one of the available
choices.']}
}}}
In this working example I am using ModelMultipleChoiceField and a queryset
to set up the choices of field 'creators' instace immediately. This works
the same if I set the queryset later on and use a broader filter for the
User model initially.
{{{
>>> TestForm = forms.Form(data={u'creators': [u'12', u'7']})
>>> TestForm.fields['creators'] =
forms.ModelMultipleChoiceField(queryset=User.objects.filter(submission__survey=1).distinct())
>>> for choice in TestForm.fields['creators'].widget.choices:
... print choice
...
(6L, u'jeffspencer')
(1L, u'shanespencer')
(12L, u'kjohnson')
(10L, u'plomonaco')
(7L, u'shanestewart')
(13L, u'dtollison')
(11L, u'khaney')
(16L, u'mbritt')
(14L, u'roberteoll')
(9L, u'thomasdunlap')
(18L, u'jsmith')
(22L, u'willeagle')
(15L, u'mlaselle')
>>> TestForm.is_valid()
True
}}}
In this working example I am using MultipleChoiceField again but setting
the choices of the 'creators' field instance immediately.
{{{
>>> TestForm = forms.Form(data={u'creators': [u'12', u'7']})
>>> TestForm.fields['creators'] = forms.MultipleChoiceField(choices=[(12,
'hi'), ('7', 'sup')])
>>> for choice in TestForm.fields['creators'].widget.choices:
... print choice
...
(12, 'hi')
('7', 'sup')
>>> TestForm.is_valid()
True
}}}
Alternatively setting the choices in afterwords with the previous example
(removing any query mistakes) gives similar results to the original
problem.
{{{
>>> TestForm = forms.Form(data={u'creators': [u'12', u'7']})
>>> TestForm.fields['creators'] = forms.MultipleChoiceField()
>>> TestForm.fields['creators'].widget.choices = [(12, 'hi'), ('7',
'sup')]
>>> TestForm.is_valid()
False
>>> TestForm.errors
{'creators': [u'Select a valid choice. 12 is not one of the available
choices.']}
}}}
--
Ticket URL: <http://code.djangoproject.com/ticket/15581>
Django <http://code.djangoproject.com/>
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