+
−"""
+
−India-specific Form helpers.
+
−"""
+
−
+
−from django.forms import ValidationError
+
−from django.forms.fields import Field, RegexField, Select, EMPTY_VALUES
+
−from django.utils.encoding import smart_unicode
+
−from django.utils.translation import gettext
+
−import re
+
−
+
−
+
−class INZipCodeField(RegexField):
+
−    default_error_messages = {
+
−        'invalid': gettext(u'Enter a zip code in the format XXXXXXX.'),
+
−    }
+
−
+
−    def __init__(self, *args, **kwargs):
+
−        super(INZipCodeField, self).__init__(r'^\d{6}$',
+
−            max_length=None, min_length=None, *args, **kwargs)
+
−
+
−class INStateField(Field):
+
−    """
+
−    A form field that validates its input is a Indian state name or
+
−    abbreviation. It normalizes the input to the standard two-letter vehicle
+
−    registration abbreviation for the given state or union territory
+
−    """
+
−    default_error_messages = {
+
−        'invalid': u'Enter a Indian state or territory.',
+
−    }
+
−
+
−    def clean(self, value):
+
−        from in_states import STATES_NORMALIZED
+
−        super(INStateField, self).clean(value)
+
−        if value in EMPTY_VALUES:
+
−            return u''
+
−        try:
+
−            value = value.strip().lower()
+
−        except AttributeError:
+
−            pass
+
−        else:
+
−            try:
+
−                return smart_unicode(STATES_NORMALIZED[value.strip().lower()])
+
−            except KeyError:
+
−                pass
+
−        raise ValidationError(self.error_messages['invalid'])
+
−
+
−class INStateSelect(Select):
+
−    """
+
−    A Select widget that uses a list of Indian states/territories as its
+
−    choices.
+
−    """
+
−    def __init__(self, attrs=None):
+
−        from in_states import STATE_CHOICES
+
−        super(INStateSelect, self).__init__(attrs, choices=STATE_CHOICES)
+
−