app/django/contrib/localflavor/in_/forms.py
author Todd Larsen <tlarsen@google.com>
Fri, 18 Jul 2008 18:22:23 +0000
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child 323 ff1a9aa48cfd
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Major reorganization of the soc svn repo, to merge into a single App Engine image (to make development easier, now that only a single app will run all Google Open Source programs).
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"""
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India-specific Form helpers.
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"""
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from django.newforms import ValidationError
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from django.newforms.fields import Field, RegexField, Select, EMPTY_VALUES
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from django.utils.encoding import smart_unicode
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from django.utils.translation import gettext
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import re
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class INZipCodeField(RegexField):
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    default_error_messages = {
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        'invalid': gettext(u'Enter a zip code in the format XXXXXXX.'),
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    }
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    def __init__(self, *args, **kwargs):
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        super(INZipCodeField, self).__init__(r'^\d{6}$',
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            max_length=None, min_length=None, *args, **kwargs)
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class INStateField(Field):
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    """
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    A form field that validates its input is a Indian state name or
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    abbreviation. It normalizes the input to the standard two-letter vehicle
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    registration abbreviation for the given state or union territory
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    """
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    default_error_messages = {
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        'invalid': u'Enter a Indian state or territory.',
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    }
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    def clean(self, value):
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        from in_states import STATES_NORMALIZED
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        super(INStateField, self).clean(value)
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        if value in EMPTY_VALUES:
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            return u''
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        try:
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            value = value.strip().lower()
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        except AttributeError:
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            pass
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        else:
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            try:
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                return smart_unicode(STATES_NORMALIZED[value.strip().lower()])
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            except KeyError:
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                pass
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        raise ValidationError(self.error_messages['invalid'])
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class INStateSelect(Select):
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    """
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    A Select widget that uses a list of Indian states/territories as its
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    choices.
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    """
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    def __init__(self, attrs=None):
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        from in_states import STATE_CHOICES
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        super(INStateSelect, self).__init__(attrs, choices=STATE_CHOICES)
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