"""
JP-specific Form helpers
"""
from __future__ import absolute_import
from .jp_prefectures import JP_PREFECTURES, JP_PREFECTURE_CODES
from django.forms.fields import RegexField, Select
from django.utils.translation import ugettext_lazy as _
[docs]class JPPostalCodeField(RegexField):
"""
A form field that validates its input is a Japanese postcode.
Accepts 7 digits, with or without a hyphen.
"""
default_error_messages = {
'invalid': _('Enter a postal code in the format XXXXXXX or XXX-XXXX.'),
}
def __init__(self, max_length=None, min_length=None, *args, **kwargs):
super(JPPostalCodeField, self).__init__(r'^\d{3}-\d{4}$|^\d{7}$',
max_length, min_length, *args, **kwargs)
[docs] def clean(self, value):
"""
Validates the input and returns a string that contains only numbers.
Returns an empty string for empty values.
"""
value = super(JPPostalCodeField, self).clean(value)
return value.replace('-', '')
[docs]class JPPrefectureSelect(Select):
"""
A Select widget that uses a list of Japanese prefectures as its choices.
"""
def __init__(self, attrs=None):
super(JPPrefectureSelect, self).__init__(attrs, choices=JP_PREFECTURES)
[docs]class JPPrefectureCodeSelect(Select):
"""
A Select widget that uses a list of Japanese prefectures as its choices
and the prefectures code as the post value.
"""
def __init__(self, attrs=None):
super(JPPrefectureCodeSelect, self).__init__(attrs, choices=JP_PREFECTURE_CODES)