
# Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.


NETWORK_CHOICES = ((None, 'Default'), ('host', 'Host'), ('bridged', 'Bridged'), ('noauto', 'No Automatic Networks'))

@property
def slicename(self):
    return "%s_%s" % (self.site.login_base, self.name)

def __xos_save_base(self, *args, **kwds):
    # set creator on first save
    if not self.creator and hasattr(self, 'caller'):
        self.creator = self.caller

    # only admins change a slice's creator
    if 'creator' in self.changed_fields and \
        (not hasattr(self, 'caller') or not self.caller.is_admin):

        if (self._initial["creator"]==None) and (self.creator==getattr(self,"caller",None)):
            # it's okay if the creator is being set by the caller to
            # himeself on a new slice object.
            pass
        else:
            raise PermissionDenied("Insufficient privileges to change slice creator",
                                   {'creator': "Insufficient privileges to change slice creator"})
    
    if self.network=="Private Only":
        # "Private Only" was the default from the old Tenant View
        self.network=None
    self.enforce_choices(self.network, self.NETWORK_CHOICES)