# 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.
import json
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import messages
from openstack_dashboard import api
[docs]class UpdateMetadataForm(forms.SelfHandlingForm):
[docs] def handle(self, request, data):
id = self.initial['id']
old_metadata = self.initial['metadata']
try:
new_metadata = json.loads(self.data['metadata'])
metadata = dict(
(item['key'], str(item['value']))
for item in new_metadata
)
api.nova.flavor_extra_set(request, id, metadata)
remove_keys = [key for key in old_metadata if key not in metadata]
api.nova.flavor_extra_delete(request, id, remove_keys)
message = _('Metadata successfully updated.')
messages.success(request, message)
except Exception:
exceptions.handle(request,
_('Unable to update the flavor metadata.'))
return False
return True