horizon/openstack_dashboard/dashboards/admin/snapshots/forms.py

75 lines
2.8 KiB
Python

# 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.
from django.urls import reverse
from django.utils.translation import ugettext_lazy as _
from horizon import exceptions
from horizon import forms
from horizon import messages
from openstack_dashboard.api import cinder
from openstack_dashboard.dashboards.project.volumes.tables \
import VolumesTableBase as volumes_table
# This set of states was pulled from cinder's snapshot_actions.py
SETTABLE_STATUSES = (
'available', 'creating', 'deleting', 'error', 'error_deleting'
)
STATUS_CHOICES = tuple(
status for status in volumes_table.STATUS_DISPLAY_CHOICES
if status[0] in SETTABLE_STATUSES
)
def populate_status_choices(current_status, status_choices):
status_choices = [status for status in status_choices
if status[0] != current_status]
status_choices.insert(0, ("", _("Select a new status")))
return status_choices
class UpdateStatus(forms.SelfHandlingForm):
status = forms.ThemableChoiceField(label=_("Status"))
def __init__(self, request, *args, **kwargs):
# Obtain the localized status to use as initial value, has to be done
# before super() otherwise the initial value will get overwritten back
# to the raw value
current_status = kwargs['initial']['status']
choices = dict(STATUS_CHOICES)
kwargs['initial']['status'] = choices[current_status]
super(UpdateStatus, self).__init__(request, *args, **kwargs)
self.fields['status'].choices = populate_status_choices(
current_status, STATUS_CHOICES)
def handle(self, request, data):
try:
cinder.volume_snapshot_reset_state(request,
self.initial['snapshot_id'],
data['status'])
choices = dict(STATUS_CHOICES)
choice = choices[data['status']]
messages.success(request, _('Successfully updated volume snapshot'
' status: "%s".') % choice)
return True
except Exception:
redirect = reverse("horizon:admin:snapshots:index")
exceptions.handle(request,
_('Unable to update volume snapshot status.'),
redirect=redirect)