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from IPy import IP
from django import forms
from django.core import validators
from django.core.exceptions import ValidationError
from django.db import models
from south.modelsinspector import add_introspection_rules
class IPNetworkFormField(forms.Field):
def to_python(self, value):
if value in validators.EMPTY_VALUES:
return None
try:
value = IP(value)
except ValueError as e:
raise ValidationError(str(e))
return value
class IPNetworkField(models.Field):
__metaclass__ = models.SubfieldBase
description = "IPv4 or IPv6 address or subnet"
def __init__(self, *args, **kwargs):
kwargs['max_length'] = 44
super(IPNetworkField, self).__init__(*args, **kwargs)
def get_internal_type(self):
return "IPAddressField"
def to_python(self, value):
if not value:
return None
return IP(value)
def get_prep_value(self, value):
value = self.to_python(value)
if not value:
return None
return str(value)
def formfield(self, **kwargs):
defaults = {'form_class': IPNetworkFormField}
defaults.update(kwargs)
return super(IPNetworkField, self).formfield(**defaults)
add_introspection_rules([], ["^mirrors\.fields\.IPNetworkField"])
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