# -*- coding: utf-8 -*-
"""
PE-specific Form helpers.
"""
from django.core.validators import EMPTY_VALUES
from django.forms import ValidationError
from django.forms.fields import RegexField,CharField,Select
from django.utils.translation import ugettext_lazy
class PERegionSelect(Select):
"""
A Select widget that uses a list of Peruvian Regions as its choices.
"""
def __init__(self, attrs=None):
from pe_region import REGION_CHOICES
super(PERegionSelect, self).__init__(attrs, choices=REGION_CHOICES)
class PEDNIField(CharField):
"""
A field that validates `Documento Nacional de Identidad (DNI) numbers.
"""
default_error_messages = {
'invalid': _("This field requires only numbers."),
'max_digits': _("This field requires 8 digits."),
}
def __init__(self, *args, **kwargs):
super(PEDNIField, self).__init__(max_length=8, min_length=8, *args,
**kwargs)
def clean(self, value):
"""
Value must be a string in the XXXXXXXX formats.
"""
value = super(PEDNIField, self).clean(value)
if value in EMPTY_VALUES:
return u''
if not value.isdigit():
raise ValidationError(self.error_messages['invalid'])
if len(value) != 8:
raise ValidationError(self.error_messages['max_digits'])
return value
class PERUCField(RegexField):
"""
This field validates a RUC (Registro Unico de Contribuyentes). A RUC is of
the form XXXXXXXXXXX.
"""
default_error_messages = {
'invalid': _("This field requires only numbers."),
'max_digits': _("This field requires 11 digits."),
}
def __init__(self, *args, **kwargs):
super(PERUCField, self).__init__(max_length=11, min_length=11, *args,
**kwargs)
def clean(self, value):
"""
Value must be an 11-digit number.
"""
value = super(PERUCField, self).clean(value)
if value in EMPTY_VALUES:
return u''
if not value.isdigit():
raise ValidationError(self.error_messages['invalid'])
if len(value) != 11:
raise ValidationError(self.error_messages['max_digits'])
return value
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