Source code for openstack_dashboard.dashboards.admin.flavors.views

# Copyright 2012 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2012 Nebula, Inc.
#
#    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 json

from django.core.urlresolvers import reverse
from django.core.urlresolvers import reverse_lazy
from django.utils.translation import ugettext_lazy as _

from horizon import exceptions
from horizon import forms
from horizon import tables
from horizon.utils import memoized
from horizon import workflows

from openstack_dashboard import api

from openstack_dashboard.dashboards.admin.flavors \
    import forms as project_forms
from openstack_dashboard.dashboards.admin.flavors \
    import tables as project_tables
from openstack_dashboard.dashboards.admin.flavors \
    import workflows as flavor_workflows


INDEX_URL = "horizon:admin:flavors:index"


[docs]class IndexView(tables.DataTableView): table_class = project_tables.FlavorsTable template_name = 'admin/flavors/index.html' page_title = _("Flavors")
[docs] def get_data(self): request = self.request flavors = [] try: # "is_public=None" will return all flavors. flavors = api.nova.flavor_list(request, None) except Exception: exceptions.handle(request, _('Unable to retrieve flavor list.')) # Sort flavors by size flavors.sort(key=lambda f: (f.vcpus, f.ram, f.disk)) return flavors
[docs]class CreateView(workflows.WorkflowView): workflow_class = flavor_workflows.CreateFlavor template_name = 'admin/flavors/create.html' page_title = _("Create Flavor")
[docs]class UpdateView(workflows.WorkflowView): workflow_class = flavor_workflows.UpdateFlavor template_name = 'admin/flavors/update.html' page_title = _("Edit Flavor")
[docs] def get_initial(self): flavor_id = self.kwargs['id'] try: # Get initial flavor information flavor = api.nova.flavor_get(self.request, flavor_id) except Exception: exceptions.handle(self.request, _('Unable to retrieve flavor details.'), redirect=reverse_lazy(INDEX_URL)) return {'flavor_id': flavor.id, 'name': flavor.name, 'vcpus': flavor.vcpus, 'memory_mb': flavor.ram, 'disk_gb': flavor.disk, 'swap_mb': flavor.swap or 0, 'eph_gb': getattr(flavor, 'OS-FLV-EXT-DATA:ephemeral', None)}
[docs]class UpdateMetadataView(forms.ModalFormView): template_name = "admin/flavors/update_metadata.html" form_class = project_forms.UpdateMetadataForm success_url = reverse_lazy('horizon:admin:flavors:index') page_title = _("Update Flavor Metadata")
[docs] def get_initial(self): extra_specs_dict = self.get_object() return {'id': self.kwargs["id"], 'metadata': extra_specs_dict}
[docs] def get_context_data(self, **kwargs): context = super(UpdateMetadataView, self).get_context_data(**kwargs) extra_specs_dict = self.get_object() context['existing_metadata'] = json.dumps(extra_specs_dict) resource_type = 'OS::Nova::Flavor' namespaces = [] try: # metadefs_namespace_list() returns a tuple with list as 1st elem namespaces = [ api.glance.metadefs_namespace_get(self.request, x.namespace, resource_type) for x in api.glance.metadefs_namespace_list( self.request, filters={'resource_types': [resource_type]} )[0] ] except Exception: msg = _('Unable to retrieve available metadata for flavors.') exceptions.handle(self.request, msg) context['available_metadata'] = json.dumps({'namespaces': namespaces}) context['id'] = self.kwargs['id'] return context
@memoized.memoized_method
[docs] def get_object(self): flavor_id = self.kwargs['id'] try: extra_specs = api.nova.flavor_get_extras(self.request, flavor_id) return dict((i.key, i.value) for i in extra_specs) except Exception: msg = _('Unable to retrieve the flavor metadata.') exceptions.handle(self.request, msg, redirect=reverse(INDEX_URL))