"""
Slovak-specific form helpers
"""
from django.forms.fields import Select,RegexField
from django.utils.translation import ugettext_lazy
class SKRegionSelect(Select):
"""
A select widget widget with list of Slovak regions as choices.
"""
def __init__(self, attrs=None):
from sk_regions import REGION_CHOICES
super(SKRegionSelect, self).__init__(attrs, choices=REGION_CHOICES)
class SKDistrictSelect(Select):
"""
A select widget with list of Slovak districts as choices.
"""
def __init__(self, attrs=None):
from sk_districts import DISTRICT_CHOICES
super(SKDistrictSelect, self).__init__(attrs, choices=DISTRICT_CHOICES)
class SKPostalCodeField(RegexField):
"""
A form field that validates its input as Slovak postal code.
Valid form is XXXXX or XXX XX, where X represents integer.
"""
default_error_messages = {
'invalid': _(u'Enter a postal code in the format XXXXX or XXX XX.'),
}
def __init__(self, *args, **kwargs):
super(SKPostalCodeField, self).__init__(r'^\d{5}$|^\d{3} \d{2}$',
max_length=None, min_length=None, *args, **kwargs)
def clean(self, value):
"""
Validates the input and returns a string that contains only numbers.
Returns an empty string for empty values.
"""
v = super(SKPostalCodeField, self).clean(value)
return v.replace(' ', '')
|