Source code for localflavor.at.forms
"""AT-specific Form helpers."""
import re
from django.forms import CharField, RegexField, Select, ValidationError
from django.utils.translation import gettext_lazy as _
from .at_states import STATE_CHOICES
re_ssn = re.compile(r'^\d{4} \d{6}')
[docs]class ATZipCodeField(RegexField):
"""
A form field that validates its input is an Austrian postcode.
Accepts 4 digits (first digit must be greater than 0).
"""
default_error_messages = {
'invalid': _('Enter a zip code in the format XXXX.'),
}
def __init__(self, **kwargs):
super().__init__(r'^[1-9]{1}\d{3}$', **kwargs)
[docs]class ATStateSelect(Select):
"""A ``Select`` widget that uses a list of AT states as its choices."""
def __init__(self, attrs=None):
super().__init__(attrs, choices=STATE_CHOICES)
[docs]class ATSocialSecurityNumberField(CharField):
"""
Austrian Social Security numbers are composed of a 4 digits and 6 digits field.
The latter represents in most cases the person's birthdate while
the first 4 digits represent a 3-digits counter and a one-digit checksum.
The 6-digits field can also differ from the person's birthdate if the
3-digits counter suffered an overflow.
This code is based on information available on
http://de.wikipedia.org/wiki/Sozialversicherungsnummer#.C3.96sterreich
"""
default_error_messages = {
'invalid': _('Enter a valid Austrian Social Security Number in XXXX XXXXXX format.'),
}
[docs] def clean(self, value):
value = super().clean(value)
if value in self.empty_values:
return value
if not re_ssn.search(value):
raise ValidationError(self.error_messages['invalid'], code='invalid')
sqnr, date = value.split(" ")
sqnr, check = (sqnr[:3], (sqnr[3]))
if int(sqnr) < 100:
raise ValidationError(self.error_messages['invalid'], code='invalid')
res = (int(sqnr[0]) * 3 + int(sqnr[1]) * 7 + int(sqnr[2]) * 9 +
int(date[0]) * 5 + int(date[1]) * 8 + int(date[2]) * 4 +
int(date[3]) * 2 + int(date[4]) * 1 + int(date[5]) * 6)
res = res % 11
if res != int(check):
raise ValidationError(self.error_messages['invalid'], code='invalid')
return '%s%s %s' % (sqnr, check, date)