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fields.py
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fields.py
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from django.core.exceptions import ValidationError
from django.db import models
from netaddr import EUI, AddrFormatError, mac_unix
from formfields import MACAddressField as MACAddressFormField
class mac_linux(mac_unix):
"""MAC format with zero-padded all upper-case hex and colon separated"""
word_fmt = '%.2X'
class MACAddressField(models.Field):
empty_strings_allowed = False
__metaclass__ = models.SubfieldBase
def get_db_prep_value(self, value):
if value is None:
return None
if not isinstance(value, EUI):
return int(EUI(value, dialect=mac_linux))
return int(value)
def get_internal_type(self):
return "BigIntegerField"
def to_python(self, value):
if value is None:
return value
if isinstance(value, EUI):
value.dialect = mac_linux
return value
try:
return EUI(value, dialect=mac_linux)
except (TypeError, ValueError, AddrFormatError):
raise ValidationError(
"This value must be a valid MAC address.")
def formfield(self, **kwargs):
defaults = {'form_class': MACAddressFormField}
defaults.update(kwargs)
return super(MACAddressField, self).formfield(**defaults)
try:
from south.modelsinspector import add_introspection_rules
add_introspection_rules([], ["^mfg\.mac\.fields\.MACAddressField"])
except ImportError:
pass