48 lines
1.2 KiB
Python
48 lines
1.2 KiB
Python
from IPy import IP
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from django import forms
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from django.core import validators
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from django.core.exceptions import ValidationError
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from django.db import models
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class IPNetworkFormField(forms.Field):
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def to_python(self, value):
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if value in validators.EMPTY_VALUES:
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return None
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try:
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value = IP(value)
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except ValueError as e:
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raise ValidationError(str(e))
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return value
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class IPNetworkField(models.Field):
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description = "IPv4 or IPv6 address or subnet"
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def __init__(self, *args, **kwargs):
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kwargs['max_length'] = 44
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super(IPNetworkField, self).__init__(*args, **kwargs)
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def get_internal_type(self):
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return "IPAddressField"
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def to_python(self, value):
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if not value:
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return None
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return IP(value)
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def get_prep_value(self, value):
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value = self.to_python(value)
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if not value:
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return None
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return str(value)
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def formfield(self, **kwargs):
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defaults = {'form_class': IPNetworkFormField}
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defaults.update(kwargs)
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return super(IPNetworkField, self).formfield(**defaults)
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def from_db_value(self, value, expression, connection):
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return self.to_python(value)
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