51 lines
1.7 KiB
Python
51 lines
1.7 KiB
Python
"""
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FI-specific Form helpers
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"""
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import re
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from django.newforms import ValidationError
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from django.newforms.fields import Field, RegexField, Select, EMPTY_VALUES
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from django.utils.translation import ugettext_lazy as _
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class FIZipCodeField(RegexField):
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default_error_messages = {
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'invalid': _('Enter a zip code in the format XXXXX.'),
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}
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def __init__(self, *args, **kwargs):
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super(FIZipCodeField, self).__init__(r'^\d{5}$',
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max_length=None, min_length=None, *args, **kwargs)
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class FIMunicipalitySelect(Select):
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"""
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A Select widget that uses a list of Finnish municipalities as its choices.
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"""
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def __init__(self, attrs=None):
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from fi_municipalities import MUNICIPALITY_CHOICES
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super(FIMunicipalitySelect, self).__init__(attrs, choices=MUNICIPALITY_CHOICES)
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class FISocialSecurityNumber(Field):
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default_error_messages = {
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'invalid': _('Enter a valid Finnish social security number.'),
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}
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def clean(self, value):
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super(FISocialSecurityNumber, self).clean(value)
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if value in EMPTY_VALUES:
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return u''
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checkmarks = "0123456789ABCDEFHJKLMNPRSTUVWXY"
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result = re.match(r"""^
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(?P<date>([0-2]\d|3[01])
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(0\d|1[012])
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(\d{2}))
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[A+-]
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(?P<serial>(\d{3}))
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(?P<checksum>[%s])$""" % checkmarks, value, re.VERBOSE | re.IGNORECASE)
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if not result:
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raise ValidationError(self.error_messages['invalid'])
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gd = result.groupdict()
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checksum = int(gd['date'] + gd['serial'])
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if checkmarks[checksum % len(checkmarks)] == gd['checksum'].upper():
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return u'%s' % value.upper()
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raise ValidationError(self.error_messages['invalid'])
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