author | Sverre Rabbelier <srabbelier@gmail.com> |
Thu, 05 Mar 2009 19:21:43 +0000 | |
changeset 1678 | 80411f57f31a |
parent 323 | ff1a9aa48cfd |
permissions | -rw-r--r-- |
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""" |
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Norwegian-specific Form helpers |
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""" |
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import re, datetime |
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from django.forms import ValidationError |
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from django.forms.fields import Field, RegexField, Select, EMPTY_VALUES |
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from django.utils.translation import ugettext_lazy as _ |
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class NOZipCodeField(RegexField): |
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default_error_messages = { |
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'invalid': _('Enter a zip code in the format XXXX.'), |
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} |
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|
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def __init__(self, *args, **kwargs): |
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super(NOZipCodeField, self).__init__(r'^\d{4}$', |
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max_length=None, min_length=None, *args, **kwargs) |
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class NOMunicipalitySelect(Select): |
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""" |
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A Select widget that uses a list of Norwegian municipalities (fylker) |
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as its choices. |
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""" |
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def __init__(self, attrs=None): |
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from no_municipalities import MUNICIPALITY_CHOICES |
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super(NOMunicipalitySelect, self).__init__(attrs, choices=MUNICIPALITY_CHOICES) |
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class NOSocialSecurityNumber(Field): |
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""" |
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Algorithm is documented at http://no.wikipedia.org/wiki/Personnummer |
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""" |
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default_error_messages = { |
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'invalid': _(u'Enter a valid Norwegian social security number.'), |
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} |
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def clean(self, value): |
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super(NOSocialSecurityNumber, self).clean(value) |
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if value in EMPTY_VALUES: |
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return u'' |
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if not re.match(r'^\d{11}$', value): |
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raise ValidationError(self.error_messages['invalid']) |
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day = int(value[:2]) |
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month = int(value[2:4]) |
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year2 = int(value[4:6]) |
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inum = int(value[6:9]) |
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self.birthday = None |
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try: |
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if 000 <= inum < 500: |
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self.birthday = datetime.date(1900+year2, month, day) |
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if 500 <= inum < 750 and year2 > 54: |
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self.birthday = datetime.date(1800+year2, month, day) |
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if 500 <= inum < 1000 and year2 < 40: |
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self.birthday = datetime.date(2000+year2, month, day) |
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if 900 <= inum < 1000 and year2 > 39: |
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self.birthday = datetime.date(1900+year2, month, day) |
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except ValueError: |
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raise ValidationError(self.error_messages['invalid']) |
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sexnum = int(value[8]) |
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if sexnum % 2 == 0: |
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self.gender = 'F' |
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else: |
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self.gender = 'M' |
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digits = map(int, list(value)) |
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weight_1 = [3, 7, 6, 1, 8, 9, 4, 5, 2, 1, 0] |
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weight_2 = [5, 4, 3, 2, 7, 6, 5, 4, 3, 2, 1] |
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def multiply_reduce(aval, bval): |
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return sum([(a * b) for (a, b) in zip(aval, bval)]) |
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if multiply_reduce(digits, weight_1) % 11 != 0: |
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raise ValidationError(self.error_messages['invalid']) |
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if multiply_reduce(digits, weight_2) % 11 != 0: |
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raise ValidationError(self.error_messages['invalid']) |
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return value |
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