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83 lines
2.9 KiB
83 lines
2.9 KiB
""" |
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IT-specific Form helpers |
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""" |
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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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from django.utils.encoding import smart_unicode |
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from django.contrib.localflavor.it.util import ssn_check_digit, vat_number_check_digit |
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import re |
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class ITZipCodeField(RegexField): |
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default_error_messages = { |
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'invalid': _('Enter a valid zip code.'), |
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} |
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def __init__(self, *args, **kwargs): |
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super(ITZipCodeField, self).__init__(r'^\d{5}$', |
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max_length=None, min_length=None, *args, **kwargs) |
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class ITRegionSelect(Select): |
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""" |
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A Select widget that uses a list of IT regions as its choices. |
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""" |
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def __init__(self, attrs=None): |
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from it_region import REGION_CHOICES |
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super(ITRegionSelect, self).__init__(attrs, choices=REGION_CHOICES) |
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class ITProvinceSelect(Select): |
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""" |
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A Select widget that uses a list of IT provinces as its choices. |
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""" |
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def __init__(self, attrs=None): |
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from it_province import PROVINCE_CHOICES |
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super(ITProvinceSelect, self).__init__(attrs, choices=PROVINCE_CHOICES) |
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class ITSocialSecurityNumberField(RegexField): |
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""" |
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A form field that validates Italian Social Security numbers (codice fiscale). |
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For reference see http://www.agenziaentrate.it/ and search for |
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'Informazioni sulla codificazione delle persone fisiche'. |
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""" |
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default_error_messages = { |
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'invalid': _(u'Enter a valid Social Security number.'), |
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} |
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def __init__(self, *args, **kwargs): |
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super(ITSocialSecurityNumberField, self).__init__(r'^\w{3}\s*\w{3}\s*\w{5}\s*\w{5}$', |
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max_length=None, min_length=None, *args, **kwargs) |
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def clean(self, value): |
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value = super(ITSocialSecurityNumberField, self).clean(value) |
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if value == u'': |
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return value |
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value = re.sub('\s', u'', value).upper() |
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try: |
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check_digit = ssn_check_digit(value) |
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except ValueError: |
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raise ValidationError(self.error_messages['invalid']) |
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if not value[15] == check_digit: |
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raise ValidationError(self.error_messages['invalid']) |
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return value |
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class ITVatNumberField(Field): |
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""" |
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A form field that validates Italian VAT numbers (partita IVA). |
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""" |
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default_error_messages = { |
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'invalid': _(u'Enter a valid VAT number.'), |
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} |
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def clean(self, value): |
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value = super(ITVatNumberField, self).clean(value) |
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if value == u'': |
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return value |
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try: |
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vat_number = int(value) |
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except ValueError: |
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raise ValidationError(self.error_messages['invalid']) |
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vat_number = str(vat_number).zfill(11) |
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check_digit = vat_number_check_digit(vat_number[0:10]) |
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if not vat_number[10] == check_digit: |
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raise ValidationError(self.error_messages['invalid']) |
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return smart_unicode(vat_number)
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