freezer-web-ui/freezer_ui/backups/views.py

109 lines
4.0 KiB
Python

# (c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
#
# 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 logging
import datetime
import pprint
from django.core.urlresolvers import reverse
from django.utils.translation import ugettext_lazy as _
from django.template.defaultfilters import date as django_date
from django.views import generic
from horizon import exceptions
from horizon import tables
from horizon import workflows
from freezer_ui.backups import tables as freezer_tables
from freezer_ui.backups.workflows import restore as restore_workflow
import freezer_ui.api.api as freezer_api
LOG = logging.getLogger(__name__)
class IndexView(tables.DataTableView):
name = _("Backups")
slug = "backups"
table_class = freezer_tables.BackupsTable
template_name = "freezer_ui/backups/index.html"
def get_data(self):
try:
backups, self._has_more = freezer_api.backups_list(self.request)
return backups
except Exception:
redirect = reverse("horizon:freezer_ui:backups:index")
msg = _('Unable to retrieve backups.')
exceptions.handle(self.request, msg, redirect=redirect)
class DetailView(generic.TemplateView):
template_name = 'freezer_ui/backups/detail.html'
def get_context_data(self, **kwargs):
try:
backup = freezer_api.backup_get(self.request,
kwargs['backup_id'])
return {'data': pprint.pformat(backup.data_dict)}
except Exception:
redirect = reverse("horizon:freezer_ui:backups:index")
msg = _('Unable to retrieve backup.')
exceptions.handle(self.request, msg, redirect=redirect)
class RestoreView(workflows.WorkflowView):
workflow_class = restore_workflow.Restore
def get_object(self, *args, **kwargs):
backup_id = self.kwargs['backup_id']
try:
return freezer_api.backup_get(self.request, backup_id)
except Exception:
redirect = reverse("horizon:freezer_ui:backups:index")
msg = _('Unable to retrieve details.')
exceptions.handle(self.request, msg, redirect=redirect)
def is_update(self):
return 'name' in self.kwargs and bool(self.kwargs['name'])
def get_workflow_name(self):
try:
backup_id = self.kwargs['backup_id']
backup = freezer_api.backup_get(self.request, backup_id)
backup_date = datetime.datetime.fromtimestamp(
int(backup.data_dict['backup_metadata']['time_stamp']))
backup_date_str = django_date(backup_date,
'SHORT_DATETIME_FORMAT')
return "Restore '{}' from {}".format(
backup.data_dict['backup_metadata']['backup_name'],
backup_date_str)
except Exception:
redirect = reverse("horizon:freezer_ui:backups:index")
msg = _('Unable to retrieve backups.')
exceptions.handle(self.request, msg, redirect=redirect)
def get_initial(self):
return {"backup_id": self.kwargs['backup_id']}
def get_workflow(self, *args, **kwargs):
try:
workflow = super(RestoreView, self).get_workflow(*args, **kwargs)
workflow.name = self.get_workflow_name()
return workflow
except Exception:
redirect = reverse("horizon:freezer_ui:backups:index")
msg = _('Unable to retrieve backups.')
exceptions.handle(self.request, msg, redirect=redirect)