/django/contrib/localflavor/jp/forms.py

 1"""
 2JP-specific Form helpers
 3"""
 4
 5from django.forms import ValidationError
 6from django.utils.translation import ugettext_lazy as _
 7from django.forms.fields import RegexField, Select
 8
 9class JPPostalCodeField(RegexField):
10    """
11    A form field that validates its input is a Japanese postcode.
12
13    Accepts 7 digits, with or without a hyphen.
14    """
15    default_error_messages = {
16        'invalid': _('Enter a postal code in the format XXXXXXX or XXX-XXXX.'),
17    }
18
19    def __init__(self, *args, **kwargs):
20        super(JPPostalCodeField, self).__init__(r'^\d{3}-\d{4}$|^\d{7}$',
21            max_length=None, min_length=None, *args, **kwargs)
22
23    def clean(self, value):
24        """
25        Validates the input and returns a string that contains only numbers.
26        Returns an empty string for empty values.
27        """
28        v = super(JPPostalCodeField, self).clean(value)
29        return v.replace('-', '')
30
31class JPPrefectureSelect(Select):
32    """
33    A Select widget that uses a list of Japanese prefectures as its choices.
34    """
35    def __init__(self, attrs=None):
36        from jp_prefectures import JP_PREFECTURES
37        super(JPPrefectureSelect, self).__init__(attrs, choices=JP_PREFECTURES)