--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/app/django/contrib/localflavor/at/forms.py Tue Oct 14 16:00:59 2008 +0000
@@ -0,0 +1,65 @@
+"""
+AT-specific Form helpers
+"""
+
+import re
+
+from django.utils.translation import ugettext_lazy as _
+from django.forms.fields import Field, RegexField, Select
+from django.forms import ValidationError
+
+re_ssn = re.compile(r'^\d{4} \d{6}')
+
+class ATZipCodeField(RegexField):
+ """
+ A form field that validates its input is an Austrian postcode.
+
+ Accepts 4 digits.
+ """
+ default_error_messages = {
+ 'invalid': _('Enter a zip code in the format XXXX.'),
+ }
+ def __init__(self, *args, **kwargs):
+ super(ATZipCodeField, self).__init__(r'^\d{4}$',
+ max_length=None, min_length=None, *args, **kwargs)
+
+class ATStateSelect(Select):
+ """
+ A Select widget that uses a list of AT states as its choices.
+ """
+ def __init__(self, attrs=None):
+ from django.contrib.localflavor.at.at_states import STATE_CHOICES
+ super(ATStateSelect, self).__init__(attrs, choices=STATE_CHOICES)
+
+class ATSocialSecurityNumberField(Field):
+ """
+ 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': _(u'Enter a valid Austrian Social Security Number in XXXX XXXXXX format.'),
+ }
+
+ def clean(self, value):
+ if not re_ssn.search(value):
+ raise ValidationError(self.error_messages['invalid'])
+ sqnr, date = value.split(" ")
+ sqnr, check = (sqnr[:3], (sqnr[3]))
+ if int(sqnr) < 100:
+ raise ValidationError(self.error_messages['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'])
+ return u'%s%s %s'%(sqnr, check, date,)
+