Source code for localflavor.tr.forms
import re
from django.core.exceptions import ImproperlyConfigured, ValidationError
from django.forms.fields import CharField, RegexField, Select
from django.utils.translation import gettext_lazy as _
from .tr_provinces import PROVINCE_CHOICES
[docs]class TRPostalCodeField(RegexField):
"""
A form field that validates input as a Turkish zip code.
Valid codes consist of five digits.
"""
default_error_messages = {
'invalid': _('Enter a postal code in the format XXXXX.'),
}
def __init__(self, max_length=5, min_length=5, **kwargs):
super().__init__(
r'^\d{5}$', max_length=max_length, min_length=min_length,
**kwargs
)
[docs] def clean(self, value):
value = super().clean(value)
if value in self.empty_values:
return value
if len(value) != 5:
raise ValidationError(self.error_messages['invalid'], code='invalid')
province_code = int(value[:2])
if province_code == 0 or province_code > 81:
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
[docs]class TRIdentificationNumberField(CharField):
"""
A Turkey Identification Number number.
See: http://tr.wikipedia.org/wiki/T%C3%BCrkiye_Cumhuriyeti_Kimlik_Numaras%C4%B1
Checks the following rules to determine whether the number is valid:
* The number is 11-digits.
* First digit is not 0.
* Conforms to the following two formula:
(sum(1st, 3rd, 5th, 7th, 9th)*7 - sum(2nd,4th,6th,8th)) % 10 = 10th digit
sum(1st to 10th) % 10 = 11th digit
"""
default_error_messages = {
'invalid': _('Enter a valid Turkish Identification number.'),
'not_11': _('Turkish Identification number must be 11 digits.'),
}
[docs] def clean(self, value):
value = super().clean(value)
if value in self.empty_values:
return value
if len(value) != 11:
raise ValidationError(self.error_messages['not_11'], code='not_11')
if not re.match(r'^\d{11}$', value):
raise ValidationError(self.error_messages['invalid'], code='invalid')
if int(value[0]) == 0:
raise ValidationError(self.error_messages['invalid'], code='invalid')
chksum = (sum([int(value[i]) for i in range(0, 9, 2)]) * 7 -
sum([int(value[i]) for i in range(1, 9, 2)])) % 10
if (chksum != int(value[9]) or
(sum([int(value[i])
for i in range(10)]) % 10) != int(value[10])):
raise ValidationError(self.error_messages['invalid'], code='invalid')
return value
[docs]class TRProvinceSelect(Select):
"""A Select widget that uses a list of provinces in Turkey as its choices."""
def __init__(self, attrs=None):
super().__init__(attrs, choices=PROVINCE_CHOICES)