# 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.core.urlresolvers 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
[docs]class CreateCGroupForm(forms.SelfHandlingForm):
name = forms.CharField(max_length=255, label=_("Consistency Group Name"))
description = forms.CharField(max_length=255,
widget=forms.Textarea(attrs={'rows': 4}),
label=_("Description"),
required=False)
snapshot_source = forms.ChoiceField(
label=_("Use snapshot as a source"),
widget=forms.ThemableSelectWidget(
attrs={'class': 'snapshot-selector'},
data_attrs=('name'),
transform=lambda x: "%s" % (x.name)),
required=False)
[docs] def prepare_snapshot_source_field(self, request, cg_snapshot_id):
try:
cg_snapshot = cinder.volume_cg_snapshot_get(request,
cg_snapshot_id)
self.fields['snapshot_source'].choices = ((cg_snapshot_id,
cg_snapshot),)
except Exception:
exceptions.handle(request,
_('Unable to load the specified snapshot.'))
def __init__(self, request, *args, **kwargs):
super(CreateCGroupForm, self).__init__(request, *args, **kwargs)
# populate cgroup_id
cg_snapshot_id = kwargs.get('initial', {}).get('cg_snapshot_id', [])
self.fields['cg_snapshot_id'] = forms.CharField(
widget=forms.HiddenInput(),
initial=cg_snapshot_id)
self.prepare_snapshot_source_field(request, cg_snapshot_id)
[docs] def handle(self, request, data):
try:
message = _('Creating consistency group "%s".') % data['name']
cgroup = cinder.volume_cgroup_create_from_source(
request,
data['name'],
cg_snapshot_id=data['cg_snapshot_id'],
description=data['description'])
messages.info(request, message)
return cgroup
except Exception:
redirect = reverse("horizon:project:volumes:index")
msg = _('Unable to create consistency '
'group "%s" from snapshot.') % data['name']
exceptions.handle(request,
msg,
redirect=redirect)