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# -*- coding: utf-8 -*-
"""
Romanian specific form helpers.
"""
import re
from django.forms import ValidationError, Field, RegexField, Select
from django.forms.fields import EMPTY_VALUES
from django.utils.translation import ugettext_lazy as _
class ROCIFField(RegexField):
"""
A Romanian fiscal identity code (CIF) field
For CIF validation algorithm see http://www.validari.ro/cui.html
"""
default_error_messages = {
'invalid': _("Enter a valid CIF."),
}
def __init__(self, *args, **kwargs):
super(ROCIFField, self).__init__(r'^[0-9]{2,10}', max_length=10,
min_length=2, *args, **kwargs)
def clean(self, value):
"""
CIF validation
"""
value = super(ROCIFField, self).clean(value)
if value in EMPTY_VALUES:
return u''
# strip RO part
if value[0:2] == 'RO':
value = value[2:]
key = '753217532'[::-1]
value = value[::-1]
key_iter = iter(key)
checksum = 0
for digit in value[1:]:
checksum += int(digit) * int(key_iter.next())
checksum = checksum * 10 % 11
if checksum == 10:
checksum = 0
if checksum != int(value[0]):
raise ValidationError(self.error_messages['invalid'])
return value[::-1]
class ROCNPField(RegexField):
"""
A Romanian personal identity code (CNP) field
For CNP validation algorithm see http://www.validari.ro/cnp.html
"""
default_error_messages = {
'invalid': _("Enter a valid CNP."),
}
def __init__(self, *args, **kwargs):
super(ROCNPField, self).__init__(r'^[1-9][0-9]{12}', max_length=13,
min_length=13, *args, **kwargs)
def clean(self, value):
"""
CNP validations
"""
value = super(ROCNPField, self).clean(value)
# check birthdate digits
import datetime
try:
datetime.date(int(value[1:3]),int(value[3:5]),int(value[5:7]))
except:
raise ValidationError(self.error_messages['invalid'])
# checksum
key = '279146358279'
checksum = 0
value_iter = iter(value)
for digit in key:
checksum += int(digit) * int(value_iter.next())
checksum %= 11
if checksum == 10:
checksum = 1
if checksum != int(value[12]):
raise ValidationError(self.error_messages['invalid'])
return value
class ROCountyField(Field):
"""
A form field that validates its input is a Romanian county name or
abbreviation. It normalizes the input to the standard vehicle registration
abbreviation for the given county
WARNING: This field will only accept names written with diacritics; consider
using ROCountySelect if this behavior is unnaceptable for you
Example:
Argeş => valid
Arges => invalid
"""
default_error_messages = {
'invalid': u'Enter a Romanian county code or name.',
}
def clean(self, value):
from ro_counties import COUNTIES_CHOICES
super(ROCountyField, self).clean(value)
if value in EMPTY_VALUES:
return u''
try:
value = value.strip().upper()
except AttributeError:
pass
# search for county code
for entry in COUNTIES_CHOICES:
if value in entry:
return value
# search for county name
normalized_CC = []
for entry in COUNTIES_CHOICES:
normalized_CC.append((entry[0],entry[1].upper()))
for entry in normalized_CC:
if entry[1] == value:
return entry[0]
raise ValidationError(self.error_messages['invalid'])
class ROCountySelect(Select):
"""
A Select widget that uses a list of Romanian counties (judete) as its
choices.
"""
def __init__(self, attrs=None):
from ro_counties import COUNTIES_CHOICES
super(ROCountySelect, self).__init__(attrs, choices=COUNTIES_CHOICES)
class ROIBANField(RegexField):
"""
Romanian International Bank Account Number (IBAN) field
For Romanian IBAN validation algorithm see http://validari.ro/iban.html
"""
default_error_messages = {
'invalid': _('Enter a valid IBAN in ROXX-XXXX-XXXX-XXXX-XXXX-XXXX format'),
}
def __init__(self, *args, **kwargs):
super(ROIBANField, self).__init__(r'^[0-9A-Za-z\-\s]{24,40}$',
max_length=40, min_length=24, *args, **kwargs)
def clean(self, value):
"""
Strips - and spaces, performs country code and checksum validation
"""
value = super(ROIBANField, self).clean(value)
value = value.replace('-','')
value = value.replace(' ','')
value = value.upper()
if value[0:2] != 'RO':
raise ValidationError(self.error_messages['invalid'])
numeric_format = ''
for char in value[4:] + value[0:4]:
if char.isalpha():
numeric_format += str(ord(char) - 55)
else:
numeric_format += char
if int(numeric_format) % 97 != 1:
raise ValidationError(self.error_messages['invalid'])
return value
class ROPhoneNumberField(RegexField):
"""Romanian phone number field"""
default_error_messages = {
'invalid': _('Phone numbers must be in XXXX-XXXXXX format.'),
}
def __init__(self, *args, **kwargs):
super(ROPhoneNumberField, self).__init__(r'^[0-9\-\(\)\s]{10,20}$',
max_length=20, min_length=10, *args, **kwargs)
def clean(self, value):
"""
Strips -, (, ) and spaces. Checks the final length.
"""
value = super(ROPhoneNumberField, self).clean(value)
value = value.replace('-','')
value = value.replace('(','')
value = value.replace(')','')
value = value.replace(' ','')
if len(value) != 10:
raise ValidationError(self.error_messages['invalid'])
return value
class ROPostalCodeField(RegexField):
"""Romanian postal code field."""
default_error_messages = {
'invalid': _('Enter a valid postal code in the format XXXXXX'),
}
def __init__(self, *args, **kwargs):
super(ROPostalCodeField, self).__init__(r'^[0-9][0-8][0-9]{4}$',
max_length=6, min_length=6, *args, **kwargs)
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