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# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# 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.
"""
Views for managing Nova volumes.
"""
from django import template
from django.contrib import messages
from django.contrib.auth.decorators import login_required
from django.shortcuts import redirect, render_to_response
from django_nova import exceptions
from django_nova import forms
from django_nova import shortcuts
from django_nova.exceptions import handle_nova_error
@login_required
@handle_nova_error
def index(request, project_id):
project = shortcuts.get_project_or_404(request, project_id)
volumes = project.get_volumes()
return render_to_response('django_nova/volumes/index.html', {
'create_form': forms.CreateVolumeForm(),
'attach_form': forms.AttachVolumeForm(project),
'region': project.region,
'project': project,
'volumes': volumes,
}, context_instance = template.RequestContext(request))
@login_required
@handle_nova_error
def add(request, project_id):
project = shortcuts.get_project_or_404(request, project_id)
if request.method == 'POST':
form = forms.CreateVolumeForm(request.POST)
if form.is_valid():
try:
volume = project.create_volume(form.cleaned_data['size'],
form.cleaned_data['nickname'],
form.cleaned_data['description'])
except exceptions.NovaApiError, e:
messages.error(request,
'Unable to create volume: %s' % e.message)
else:
messages.success(request,
'Volume %s %s has been successfully created.' %
(volume.id, volume.displayName))
else:
volumes = project.get_volumes()
return render_to_response('django_nova/volumes/index.html', {
'create_form': form,
'attach_form': forms.AttachVolumeForm(project),
'region': project.region,
'project': project,
'volumes': volumes,
}, context_instance = template.RequestContext(request))
return redirect('nova_volumes', project_id)
@login_required
@handle_nova_error
def delete(request, project_id, volume_id):
project = shortcuts.get_project_or_404(request, project_id)
if request.method == 'POST':
try:
project.delete_volume(volume_id)
except exceptions.NovaApiError, e:
messages.error(request,
'Unable to delete volume: %s' % e.message)
else:
messages.success(request,
'Volume %s has been successfully deleted.'
% volume_id)
return redirect('nova_volumes', project_id)
@login_required
@handle_nova_error
def attach(request, project_id):
project = shortcuts.get_project_or_404(request, project_id)
if request.method == 'POST':
form = forms.AttachVolumeForm(project, request.POST)
if form.is_valid():
try:
project.attach_volume(
form.cleaned_data['volume'],
form.cleaned_data['instance'],
form.cleaned_data['device']
)
except exceptions.NovaApiError, e:
messages.error(request,
'Unable to attach volume: %s' % e.message)
else:
messages.success(request,
'Volume %s has been successfully attached.' %
form.cleaned_data['volume'])
else:
volumes = project.get_volumes()
return render_to_response('django_nova/volumes/index.html', {
'create_form': forms.CreateVolumeForm(),
'attach_form': form,
'region': project.region,
'project': project,
'volumes': volumes,
}, context_instance = template.RequestContext(request))
return redirect('nova_volumes', project_id)
@login_required
@handle_nova_error
def detach(request, project_id, volume_id):
project = shortcuts.get_project_or_404(request, project_id)
if request.method == 'POST':
try:
project.detach_volume(volume_id)
except exceptions.NovaApiError, e:
messages.error(request,
'Unable to detach volume: %s' % e.message)
else:
messages.success(request,
'Volume %s has been successfully detached.' %
volume_id)
return redirect('nova_volumes', project_id)
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