"""
Israeli-specific form helpers
"""
from __future__ import unicode_literals
import re
from django.core.exceptions import ValidationError
from django.core.validators import EMPTY_VALUES
from django.forms.fields import RegexField, Field
from django.utils.translation import ugettext_lazy as _
from localflavor.generic.checksums import luhn
id_number_re = re.compile(r'^(?P<number>\d{1,8})-?(?P<check>\d)$')
mobile_phone_number_re = re.compile(r'^(\()?0?(5[02-9])(?(1)\))-?\d{7}$') # including palestinian mobile carriers
[docs]class ILPostalCodeField(RegexField):
"""
A form field that validates its input as an Israeli postal code.
Valid form is XXXXX where X represents integer.
"""
default_error_messages = {
'invalid': _('Enter a postal code in the format XXXXXXX (or XXXXX) - digits only'),
}
def __init__(self, *args, **kwargs):
super(ILPostalCodeField, self).__init__(r'^\d{5}$|^\d{7}$', *args, **kwargs)
def clean(self, value):
if value not in EMPTY_VALUES:
value = value.replace(" ", "")
return super(ILPostalCodeField, self).clean(value)
[docs]class ILIDNumberField(Field):
"""
A form field that validates its input as an Israeli identification number.
Valid form is per the Israeli ID specification.
Israeli ID numbers consist of up to 8 digits followed by a checksum digit.
Numbers which are shorter than 8 digits are effectively left-zero-padded.
The checksum digit is occasionally separated from the number by a hyphen,
and is calculated using the luhn algorithm.
Relevant references (in Hewbrew):
http://he.wikipedia.org/wiki/%D7%9E%D7%A1%D7%A4%D7%A8_%D7%96%D7%94%D7%95%D7%AA_(%D7%99%D7%A9%D7%A8%D7%90%D7%9C)
http://he.wikipedia.org/wiki/%D7%A1%D7%A4%D7%A8%D7%AA_%D7%91%D7%99%D7%A7%D7%95%D7%A8%D7%AA
http://he.wikipedia.org/wiki/%D7%A7%D7%99%D7%93%D7%95%D7%9E%D7%AA_%D7%98%D7%9C%D7%A4%D7%95%D7%9F_%D7%91%D7%99%D7%A9%D7%A8%D7%90%D7%9C#.D7.A7.D7.99.D7.93.D7.95.D7.9E.D7.95.D7.AA_.D7.91.D7.99.D7.A9.D7.A8.D7.90.D7.9C_.D7.9C.D7.A4.D7.99_.D7.9E.D7.A4.D7.A2.D7.99.D7.9C.D7.99.D7.9D_.D7.95.D7.97.D7.9C.D7.95.D7.A7.D7.94_.D7.92.D7.90.D7.95.D7.92.D7.A8.D7.A4.D7.99.D7.AA
"""
default_error_messages = {
'invalid': _('Enter a valid ID number.'),
}
def clean(self, value):
value = super(ILIDNumberField, self).clean(value)
if value in EMPTY_VALUES:
return ''
match = id_number_re.match(value)
if not match:
raise ValidationError(self.error_messages['invalid'])
value = match.group('number') + match.group('check')
if not luhn(value):
raise ValidationError(self.error_messages['invalid'])
return value
[docs]class ILMobilePhoneNumberField(RegexField):
"""
A form field that validates its input as an Israeli Mobile phone number.
"""
default_error_messages = {
'invalid': _('Enter a valid Mobile Number.'),
}
def __init__(self, *args, **kwargs):
super(ILMobilePhoneNumberField, self).__init__(mobile_phone_number_re, *args, **kwargs)