# 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 UpdateForm(forms.SelfHandlingForm):
name = forms.CharField(max_length=255, label=_("Name"))
description = forms.CharField(max_length=255,
widget=forms.Textarea(attrs={'rows': 4}),
label=_("Description"),
required=False)
[docs] def clean(self):
cleaned_data = super(UpdateForm, self).clean()
new_desc = cleaned_data.get('description')
old_desc = self.initial['description']
if len(old_desc):
if len(new_desc) == 0:
error_msg = _("Description is required.")
self._errors['description'] = self.error_class([error_msg])
return cleaned_data
return cleaned_data
[docs] def handle(self, request, data):
cgroup_id = self.initial['cgroup_id']
try:
cinder.volume_cgroup_update(request,
cgroup_id,
data['name'],
data['description'])
message = _('Updating volume consistency '
'group "%s"') % data['name']
messages.info(request, message)
return True
except Exception:
redirect = reverse("horizon:project:volumes:index")
exceptions.handle(request,
_('Unable to update volume consistency group.'),
redirect=redirect)
[docs]class RemoveVolsForm(forms.SelfHandlingForm):
[docs] def handle(self, request, data):
cgroup_id = self.initial['cgroup_id']
name = self.initial['name']
search_opts = {'consistencygroup_id': cgroup_id}
try:
# get list of assigned volumes
assigned_vols = []
volumes = cinder.volume_list(request,
search_opts=search_opts)
for volume in volumes:
assigned_vols.append(volume.id)
assigned_vols_str = ",".join(assigned_vols)
cinder.volume_cgroup_update(request,
cgroup_id,
remove_vols=assigned_vols_str)
message = _('Removing volumes from volume consistency '
'group "%s"') % name
messages.info(request, message)
return True
except Exception:
redirect = reverse("horizon:project:volumes:index")
exceptions.handle(request, _('Errors occurred in removing volumes '
'from consistency group.'),
redirect=redirect)
[docs]class DeleteForm(forms.SelfHandlingForm):
delete_volumes = forms.BooleanField(label=_("Delete Volumes"),
required=False)
[docs] def handle(self, request, data):
cgroup_id = self.initial['cgroup_id']
name = self.initial['name']
delete_volumes = data['delete_volumes']
try:
cinder.volume_cgroup_delete(request,
cgroup_id,
force=delete_volumes)
message = _('Deleting volume consistency '
'group "%s"') % name
messages.success(request, message)
return True
except Exception:
redirect = reverse("horizon:project:volumes:index")
exceptions.handle(request, _('Errors occurred in deleting '
'consistency group.'),
redirect=redirect)
[docs]class CreateSnapshotForm(forms.SelfHandlingForm):
name = forms.CharField(max_length=255, label=_("Snapshot Name"))
description = forms.CharField(max_length=255,
widget=forms.Textarea(attrs={'rows': 4}),
label=_("Description"),
required=False)
def __init__(self, request, *args, **kwargs):
super(CreateSnapshotForm, self).__init__(request, *args, **kwargs)
# populate cgroup_id
cgroup_id = kwargs.get('initial', {}).get('cgroup_id', [])
self.fields['cgroup_id'] = forms.CharField(widget=forms.HiddenInput(),
initial=cgroup_id)
[docs] def handle(self, request, data):
try:
message = _('Creating consistency group snapshot "%s".') \
% data['name']
snapshot = cinder.volume_cg_snapshot_create(request,
data['cgroup_id'],
data['name'],
data['description'])
messages.info(request, message)
return snapshot
except Exception as e:
redirect = reverse("horizon:project:volumes:index")
msg = _('Unable to create consistency group snapshot.')
if e.code == 413:
msg = _('Requested snapshot would exceed the allowed quota.')
else:
search_opts = {'consistentcygroup_id': data['cgroup_id']}
volumes = cinder.volume_list(request, search_opts=search_opts)
if len(volumes) == 0:
msg = _('Unable to create snapshot. Consistency group '
'must contain volumes.')
exceptions.handle(request,
msg,
redirect=redirect)
[docs]class CloneCGroupForm(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)
cgroup_source = forms.ChoiceField(
label=_("Use a consistency group as source"),
widget=forms.ThemableSelectWidget(
attrs={'class': 'image-selector'},
data_attrs=('name'),
transform=lambda x: "%s" % (x.name)),
required=False)
[docs] def prepare_cgroup_source_field(self, request, cgroup_id):
try:
cgroup = cinder.volume_cgroup_get(request,
cgroup_id)
self.fields['cgroup_source'].choices = ((cgroup_id,
cgroup),)
except Exception:
exceptions.handle(request, _('Unable to load the specified '
'consistency group.'))
def __init__(self, request, *args, **kwargs):
super(CloneCGroupForm, self).__init__(request, *args, **kwargs)
# populate cgroup_id
cgroup_id = kwargs.get('initial', {}).get('cgroup_id', [])
self.fields['cgroup_id'] = forms.CharField(widget=forms.HiddenInput(),
initial=cgroup_id)
self.prepare_cgroup_source_field(request, cgroup_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'],
source_cgroup_id=data['cgroup_id'],
description=data['description'])
messages.info(request, message)
return cgroup
except Exception:
redirect = reverse("horizon:project:volumes:index")
msg = _('Unable to clone consistency group.')
search_opts = {'consistentcygroup_id': data['cgroup_id']}
volumes = cinder.volume_list(request, search_opts=search_opts)
if len(volumes) == 0:
msg = _('Unable to clone empty consistency group.')
exceptions.handle(request,
msg,
redirect=redirect)