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# 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 import html
from django.utils import http
from django.utils import safestring
from django.utils.translation import gettext_lazy as _
from django.utils.translation import ngettext_lazy
from django.utils.translation import pgettext_lazy
from horizon import tables
from openstack_dashboard import api
from openstack_dashboard.api import cinder
DELETABLE_STATES = ("available", "error",)
class BackupVolumeNameColumn(tables.Column):
def get_raw_data(self, backup):
volume = backup.volume
if volume:
volume_name = volume.name
volume_name = html.escape(volume_name)
else:
volume_name = _("Unknown")
return safestring.mark_safe(volume_name)
def get_link_url(self, backup):
volume = backup.volume
if volume:
volume_id = volume.id
return reverse(self.link, args=(volume_id,))
class SnapshotColumn(tables.Column):
url = "horizon:project:snapshots:detail"
def get_raw_data(self, backup):
snapshot = backup.snapshot
if snapshot:
snapshot_name = snapshot.name
snapshot_name = html.escape(snapshot_name)
elif backup.snapshot_id:
snapshot_name = _("Unknown")
else:
return None
return safestring.mark_safe(snapshot_name)
def get_link_url(self, backup):
if backup.snapshot:
return reverse(self.url,
args=(backup.snapshot_id,))
class DeleteBackup(tables.DeleteAction):
help_text = _("Deleted volume backups are not recoverable.")
policy_rules = (("volume", "backup:delete"),)
@staticmethod
def action_present(count):
return ngettext_lazy(
"Delete Volume Backup",
"Delete Volume Backups",
count
)
@staticmethod
def action_past(count):
return ngettext_lazy(
"Scheduled deletion of Volume Backup",
"Scheduled deletion of Volume Backups",
count
)
def delete(self, request, obj_id):
api.cinder.volume_backup_delete(request, obj_id)
def allowed(self, request, backup=None):
if backup:
return backup.status in DELETABLE_STATES
return True
class RestoreBackup(tables.LinkAction):
name = "restore"
verbose_name = _("Restore Backup")
url = "horizon:project:backups:restore"
classes = ("ajax-modal",)
policy_rules = (("volume", "backup:restore"),)
def allowed(self, request, backup=None):
return backup.status == "available"
def get_link_url(self, datum):
backup_id = datum.id
backup_name = datum.name
volume_id = getattr(datum, 'volume_id', None)
url = reverse(self.url, args=(backup_id,))
url += '?%s' % http.urlencode({'backup_name': backup_name,
'volume_id': volume_id})
return url
class UpdateRow(tables.Row):
ajax = True
def get_data(self, request, backup_id):
backup = cinder.volume_backup_get(request, backup_id)
try:
backup.volume = cinder.volume_get(request,
backup.volume_id)
except Exception:
pass
if backup.snapshot_id is not None:
try:
backup.snapshot = cinder.volume_snapshot_get(
request, backup.snapshot_id)
except Exception:
pass
else:
backup.snapshot = None
return backup
def get_size(backup):
return _("%sGB") % backup.size
class BackupsFilterAction(tables.FilterAction):
def filter(self, table, volumes, filter_string):
q = filter_string.lower()
return [volume for volume in volumes
if q in volume.name.lower()]
class BackupsTable(tables.DataTable):
STATUS_CHOICES = (
("available", True),
("creating", None),
("restoring", None),
("error", False),
)
STATUS_DISPLAY_CHOICES = (
("available", pgettext_lazy("Current status of a Volume Backup",
"Available")),
("error", pgettext_lazy("Current status of a Volume Backup",
"Error")),
("creating", pgettext_lazy("Current status of a Volume Backup",
"Creating")),
("restoring", pgettext_lazy("Current status of a Volume Backup",
"Restoring")),
("deleting", pgettext_lazy("Current status of a Volume Backup",
"Deleting")),
("error_restoring", pgettext_lazy("Current status of a Volume Backup",
"Error Restoring")),
)
name = tables.Column("name",
verbose_name=_("Name"),
link="horizon:project:backups:detail")
description = tables.Column("description",
verbose_name=_("Description"),
truncate=40)
size = tables.Column(get_size,
verbose_name=_("Size"),
attrs={'data-type': 'size'})
status = tables.Column("status",
verbose_name=_("Status"),
status=True,
status_choices=STATUS_CHOICES,
display_choices=STATUS_DISPLAY_CHOICES)
volume_name = BackupVolumeNameColumn("name",
verbose_name=_("Volume Name"),
link="horizon:project:volumes:detail")
snapshot = SnapshotColumn("snapshot",
verbose_name=_("Snapshot"),
link="horizon:project:snapshots:detail")
def current_page(self):
return self._meta.current_page()
def number_of_pages(self):
return self._meta.number_of_pages()
def get_pagination_string(self):
return '?%s=' % self._meta.pagination_param
class Meta(object):
name = "volume_backups"
verbose_name = _("Volume Backups")
pagination_param = 'page'
status_columns = ("status",)
row_class = UpdateRow
table_actions = (DeleteBackup, BackupsFilterAction)
row_actions = (RestoreBackup, DeleteBackup)
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