40 lines
1.8 KiB
Python
40 lines
1.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (c) 2012 by Pablo Martín <goinnn@gmail.com>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this programe. If not, see <http://www.gnu.org/licenses/>.
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from django import forms
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from ..utils import MSFList, get_max_length
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from ..validators import MaxValueMultiFieldValidator, MinChoicesValidator, MaxChoicesValidator
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class MultiSelectFormField(forms.MultipleChoiceField):
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widget = forms.CheckboxSelectMultiple
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def __init__(self, *args, **kwargs):
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self.min_choices = kwargs.pop('min_choices', None)
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self.max_choices = kwargs.pop('max_choices', None)
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self.max_length = kwargs.pop('max_length', None)
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self.flat_choices = kwargs.pop('flat_choices')
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super(MultiSelectFormField, self).__init__(*args, **kwargs)
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self.max_length = get_max_length(self.choices, self.max_length)
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self.validators.append(MaxValueMultiFieldValidator(self.max_length))
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if self.max_choices is not None:
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self.validators.append(MaxChoicesValidator(self.max_choices))
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if self.min_choices is not None:
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self.validators.append(MinChoicesValidator(self.min_choices))
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def to_python(self, value):
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return MSFList(dict(self.flat_choices), super(MultiSelectFormField, self).to_python(value))
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