92 lines
3.3 KiB
Python
92 lines
3.3 KiB
Python
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"""
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TR-specific Form helpers
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"""
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from django.core.validators import EMPTY_VALUES
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from django.forms import ValidationError
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from django.forms.fields import Field, RegexField, Select, CharField
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from django.utils.encoding import smart_unicode
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from django.utils.translation import ugettext_lazy as _
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import re
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phone_digits_re = re.compile(r'^(\+90|0)? ?(([1-9]\d{2})|\([1-9]\d{2}\)) ?([2-9]\d{2} ?\d{2} ?\d{2})$')
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class TRPostalCodeField(RegexField):
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default_error_messages = {
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'invalid': _(u'Enter a postal code in the format XXXXX.'),
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}
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def __init__(self, *args, **kwargs):
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super(TRPostalCodeField, self).__init__(r'^\d{5}$',
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max_length=5, min_length=5, *args, **kwargs)
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def clean(self, value):
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value = super(TRPostalCodeField, self).clean(value)
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if value in EMPTY_VALUES:
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return u''
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if len(value) != 5:
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raise ValidationError(self.error_messages['invalid'])
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province_code = int(value[:2])
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if province_code == 0 or province_code > 81:
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raise ValidationError(self.error_messages['invalid'])
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return value
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class TRPhoneNumberField(CharField):
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default_error_messages = {
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'invalid': _(u'Phone numbers must be in 0XXX XXX XXXX format.'),
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}
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def clean(self, value):
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super(TRPhoneNumberField, 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' % (m.group(2), m.group(4))
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raise ValidationError(self.error_messages['invalid'])
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class TRIdentificationNumberField(Field):
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"""
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A Turkey Identification Number number.
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See: http://tr.wikipedia.org/wiki/T%C3%BCrkiye_Cumhuriyeti_Kimlik_Numaras%C4%B1
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Checks the following rules to determine whether the number is valid:
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* The number is 11-digits.
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* First digit is not 0.
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* Conforms to the following two formula:
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(sum(1st, 3rd, 5th, 7th, 9th)*7 - sum(2nd,4th,6th,8th)) % 10 = 10th digit
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sum(1st to 10th) % 10 = 11th digit
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"""
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default_error_messages = {
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'invalid': _(u'Enter a valid Turkish Identification number.'),
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'not_11': _(u'Turkish Identification number must be 11 digits.'),
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}
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def clean(self, value):
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super(TRIdentificationNumberField, self).clean(value)
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if value in EMPTY_VALUES:
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return u''
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if len(value) != 11:
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raise ValidationError(self.error_messages['not_11'])
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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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if int(value[0]) == 0:
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raise ValidationError(self.error_messages['invalid'])
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chksum = (sum([int(value[i]) for i in xrange(0,9,2)])*7-
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sum([int(value[i]) for i in xrange(1,9,2)])) % 10
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if chksum != int(value[9]) or \
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(sum([int(value[i]) for i in xrange(10)]) % 10) != int(value[10]):
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raise ValidationError(self.error_messages['invalid'])
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return value
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class TRProvinceSelect(Select):
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"""
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A Select widget that uses a list of provinces in Turkey as its choices.
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"""
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def __init__(self, attrs=None):
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from tr_provinces import PROVINCE_CHOICES
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super(TRProvinceSelect, self).__init__(attrs, choices=PROVINCE_CHOICES)
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