120 lines
4.2 KiB
Python
120 lines
4.2 KiB
Python
# -*- coding: utf-8 -*-
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"""
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BR-specific Form helpers
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"""
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from django.newforms import ValidationError
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from django.newforms.fields import Field, RegexField, CharField, Select, EMPTY_VALUES
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from django.utils.encoding import smart_unicode
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from django.utils.translation import gettext
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import re
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phone_digits_re = re.compile(r'^(\d{2})[-\.]?(\d{4})[-\.]?(\d{4})$')
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class BRZipCodeField(RegexField):
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def __init__(self, *args, **kwargs):
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super(BRZipCodeField, self).__init__(r'^\d{5}-\d{3}$',
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max_length=None, min_length=None,
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error_message=gettext('Enter a zip code in the format XXXXX-XXX.'),
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*args, **kwargs)
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class BRPhoneNumberField(Field):
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def clean(self, value):
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super(BRPhoneNumberField, self).clean(value)
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if value in EMPTY_VALUES:
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return u''
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value = re.sub('(\(|\)|\s+)', '', smart_unicode(value))
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m = phone_digits_re.search(value)
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if m:
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return u'%s-%s-%s' % (m.group(1), m.group(2), m.group(3))
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raise ValidationError(gettext(u'Phone numbers must be in XX-XXXX-XXXX format.'))
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class BRStateSelect(Select):
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"""
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A Select widget that uses a list of Brazilian states/territories
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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 br_states import STATE_CHOICES # relative import
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super(BRStateSelect, self).__init__(attrs, choices=STATE_CHOICES)
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def DV_maker(v):
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if v >= 2:
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return 11 - v
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return 0
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class BRCPFField(CharField):
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"""
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This field validate a CPF number or a CPF string. A CPF number is
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compounded by XXX.XXX.XXX-VD. The two last digits are check digits.
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More information:
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http://en.wikipedia.org/wiki/Cadastro_de_Pessoas_F%C3%ADsicas
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"""
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def __init__(self, *args, **kwargs):
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super(BRCPFField, self).__init__(max_length=14, min_length=11, *args, **kwargs)
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def clean(self, value):
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"""
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Value can be either a string in the format XXX.XXX.XXX-XX or an
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11-digit number.
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"""
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value = super(BRCPFField, self).clean(value)
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if value in EMPTY_VALUES:
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return u''
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orig_value = value[:]
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if not value.isdigit():
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value = re.sub("[-\.]", "", value)
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try:
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int(value)
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except ValueError:
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raise ValidationError(gettext("This field requires only numbers."))
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if len(value) != 11:
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raise ValidationError(gettext("This field requires at most 11 digits or 14 characters."))
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orig_dv = value[-2:]
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new_1dv = sum([i * int(value[idx]) for idx, i in enumerate(range(10, 1, -1))])
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new_1dv = DV_maker(new_1dv % 11)
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value = value[:-2] + str(new_1dv) + value[-1]
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new_2dv = sum([i * int(value[idx]) for idx, i in enumerate(range(11, 1, -1))])
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new_2dv = DV_maker(new_2dv % 11)
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value = value[:-1] + str(new_2dv)
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if value[-2:] != orig_dv:
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raise ValidationError(gettext("Invalid CPF number."))
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return orig_value
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class BRCNPJField(Field):
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def clean(self, value):
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"""
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Value can be either a string in the format XX.XXX.XXX/XXXX-XX or a
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group of 14 characters.
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"""
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value = super(BRCNPJField, self).clean(value)
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if value in EMPTY_VALUES:
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return u''
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orig_value = value[:]
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if not value.isdigit():
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value = re.sub("[-/\.]", "", value)
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try:
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int(value)
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except ValueError:
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raise ValidationError("This field requires only numbers.")
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if len(value) != 14:
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raise ValidationError(
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gettext("This field requires at least 14 digits"))
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orig_dv = value[-2:]
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new_1dv = sum([i * int(value[idx]) for idx, i in enumerate(range(5, 1, -1) + range(9, 1, -1))])
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new_1dv = DV_maker(new_1dv % 11)
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value = value[:-2] + str(new_1dv) + value[-1]
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new_2dv = sum([i * int(value[idx]) for idx, i in enumerate(range(6, 1, -1) + range(9, 1, -1))])
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new_2dv = DV_maker(new_2dv % 11)
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value = value[:-1] + str(new_2dv)
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if value[-2:] != orig_dv:
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raise ValidationError(gettext("Invalid CNPJ number."))
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return orig_value
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