/django/contrib/localflavor/no/forms.py
Python | 82 lines | 66 code | 6 blank | 10 comment | 1 complexity | 810d8704fe4242749abd5bfd9c9d1d9a MD5 | raw file
Possible License(s): BSD-3-Clause
- """
- Norwegian-specific Form helpers
- """
- import re, datetime
- from django.core.validators import EMPTY_VALUES
- from django.forms import ValidationError
- from django.forms.fields import Field, RegexField, Select
- from django.utils.translation import ugettext_lazy as _
- class NOZipCodeField(RegexField):
- default_error_messages = {
- 'invalid': _('Enter a zip code in the format XXXX.'),
- }
- def __init__(self, *args, **kwargs):
- super(NOZipCodeField, self).__init__(r'^\d{4}$',
- max_length=None, min_length=None, *args, **kwargs)
- class NOMunicipalitySelect(Select):
- """
- A Select widget that uses a list of Norwegian municipalities (fylker)
- as its choices.
- """
- def __init__(self, attrs=None):
- from no_municipalities import MUNICIPALITY_CHOICES
- super(NOMunicipalitySelect, self).__init__(attrs, choices=MUNICIPALITY_CHOICES)
- class NOSocialSecurityNumber(Field):
- """
- Algorithm is documented at http://no.wikipedia.org/wiki/Personnummer
- """
- default_error_messages = {
- 'invalid': _(u'Enter a valid Norwegian social security number.'),
- }
- def clean(self, value):
- super(NOSocialSecurityNumber, self).clean(value)
- if value in EMPTY_VALUES:
- return u''
- if not re.match(r'^\d{11}$', value):
- raise ValidationError(self.error_messages['invalid'])
- day = int(value[:2])
- month = int(value[2:4])
- year2 = int(value[4:6])
- inum = int(value[6:9])
- self.birthday = None
- try:
- if 000 <= inum < 500:
- self.birthday = datetime.date(1900+year2, month, day)
- if 500 <= inum < 750 and year2 > 54:
- self.birthday = datetime.date(1800+year2, month, day)
- if 500 <= inum < 1000 and year2 < 40:
- self.birthday = datetime.date(2000+year2, month, day)
- if 900 <= inum < 1000 and year2 > 39:
- self.birthday = datetime.date(1900+year2, month, day)
- except ValueError:
- raise ValidationError(self.error_messages['invalid'])
- sexnum = int(value[8])
- if sexnum % 2 == 0:
- self.gender = 'F'
- else:
- self.gender = 'M'
- digits = map(int, list(value))
- weight_1 = [3, 7, 6, 1, 8, 9, 4, 5, 2, 1, 0]
- weight_2 = [5, 4, 3, 2, 7, 6, 5, 4, 3, 2, 1]
- def multiply_reduce(aval, bval):
- return sum([(a * b) for (a, b) in zip(aval, bval)])
- if multiply_reduce(digits, weight_1) % 11 != 0:
- raise ValidationError(self.error_messages['invalid'])
- if multiply_reduce(digits, weight_2) % 11 != 0:
- raise ValidationError(self.error_messages['invalid'])
- return value