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"""
Australian-specific Form helpers
"""
from django.forms import ValidationError
from django.forms.fields import Field, RegexField, Select, EMPTY_VALUES
from django.forms.util import smart_unicode
from django.utils.translation import ugettext_lazy as _
import re
PHONE_DIGITS_RE = re.compile(r'^(\d{10})$')
class AUPostCodeField(RegexField):
"""Australian post code field."""
default_error_messages = {
'invalid': _('Enter a 4 digit post code.'),
}
def __init__(self, *args, **kwargs):
super(AUPostCodeField, self).__init__(r'^\d{4}$',
max_length=None, min_length=None, *args, **kwargs)
class AUPhoneNumberField(Field):
"""Australian phone number field."""
default_error_messages = {
'invalid': u'Phone numbers must contain 10 digits.',
}
def clean(self, value):
"""
Validate a phone number. Strips parentheses, whitespace and hyphens.
"""
super(AUPhoneNumberField, self).clean(value)
if value in EMPTY_VALUES:
return u''
value = re.sub('(\(|\)|\s+|-)', '', smart_unicode(value))
phone_match = PHONE_DIGITS_RE.search(value)
if phone_match:
return u'%s' % phone_match.group(1)
raise ValidationError(self.error_messages['invalid'])
class AUStateSelect(Select):
"""
A Select widget that uses a list of Australian states/territories as its
choices.
"""
def __init__(self, attrs=None):
from au_states import STATE_CHOICES
super(AUStateSelect, self).__init__(attrs, choices=STATE_CHOICES)
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