Source code for openstack_dashboard.dashboards.admin.images.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
import logging

from oslo_utils import units

from django import conf
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 openstack_dashboard import api
from openstack_dashboard.dashboards.project.images.images import views

from openstack_dashboard.dashboards.admin.images import forms as project_forms
from openstack_dashboard.dashboards.admin.images \
    import tables as project_tables

LOG = logging.getLogger(__name__)


[docs]class IndexView(tables.DataTableView): table_class = project_tables.AdminImagesTable template_name = 'admin/images/index.html' page_title = _("Images")
[docs] def has_prev_data(self, table): return self._prev
[docs] def has_more_data(self, table): return self._more
[docs] def get_data(self): images = [] filters = self.get_filters() prev_marker = self.request.GET.get( project_tables.AdminImagesTable._meta.prev_pagination_param, None) if prev_marker is not None: sort_dir = 'asc' marker = prev_marker else: sort_dir = 'desc' marker = self.request.GET.get( project_tables.AdminImagesTable._meta.pagination_param, None) try: images, self._more, self._prev = api.glance.image_list_detailed( self.request, marker=marker, paginate=True, filters=filters, sort_dir=sort_dir) if prev_marker is not None: images = sorted(images, key=lambda image: getattr(image, 'created_at'), reverse=True) except Exception: self._prev = False self._more = False msg = _('Unable to retrieve image list.') exceptions.handle(self.request, msg) return images
[docs] def get_filters(self): filters = {'is_public': None} filter_field = self.table.get_filter_field() filter_string = self.table.get_filter_string() filter_action = self.table._meta._filter_action if filter_field and filter_string and ( filter_action.is_api_filter(filter_field)): if filter_field in ['size_min', 'size_max']: invalid_msg = ('API query is not valid and is ignored: %s=%s' % (filter_field, filter_string)) try: filter_string = long(float(filter_string) * (units.Mi)) if filter_string >= 0: filters[filter_field] = filter_string else: LOG.warning(invalid_msg) except ValueError: LOG.warning(invalid_msg) else: filters[filter_field] = filter_string return filters
[docs]class CreateView(views.CreateView): template_name = 'admin/images/create.html' form_class = project_forms.AdminCreateImageForm success_url = reverse_lazy('horizon:admin:images:index') page_title = _("Create An Image")
[docs]class UpdateView(views.UpdateView): template_name = 'admin/images/update.html' form_class = project_forms.AdminUpdateImageForm success_url = reverse_lazy('horizon:admin:images:index') page_title = _("Update Image")
[docs]class DetailView(views.DetailView):
[docs] def get_context_data(self, **kwargs): context = super(DetailView, self).get_context_data(**kwargs) table = project_tables.AdminImagesTable(self.request) context["url"] = reverse('horizon:admin:images:index') context["actions"] = table.render_row_actions(context["image"]) return context
[docs]class UpdateMetadataView(forms.ModalFormView): template_name = "admin/images/update_metadata.html" form_class = project_forms.UpdateMetadataForm success_url = reverse_lazy('horizon:admin:images:index') page_title = _("Update Image Metadata")
[docs] def get_initial(self): image = self.get_object() return {'id': self.kwargs["id"], 'metadata': image.properties}
[docs] def get_context_data(self, **kwargs): context = super(UpdateMetadataView, self).get_context_data(**kwargs) image = self.get_object() reserved_props = getattr(conf.settings, 'IMAGE_RESERVED_CUSTOM_PROPERTIES', []) image.properties = dict((k, v) for (k, v) in image.properties.iteritems() if k not in reserved_props) context['existing_metadata'] = json.dumps(image.properties) resource_type = 'OS::Glance::Image' namespaces = [] try: # metadefs_namespace_list() returns a tuple with list as 1st elem available_namespaces = [x.namespace for x in api.glance.metadefs_namespace_list( self.request, filters={"resource_types": [resource_type]} )[0]] for namespace in available_namespaces: details = api.glance.metadefs_namespace_get(self.request, namespace, resource_type) # Filter out reserved custom properties from namespace if reserved_props: if hasattr(details, 'properties'): details.properties = dict( (k, v) for (k, v) in details.properties.iteritems() if k not in reserved_props ) if hasattr(details, 'objects'): for obj in details.objects: obj['properties'] = dict( (k, v) for (k, v) in obj['properties'].iteritems() if k not in reserved_props ) namespaces.append(details) except Exception: msg = _('Unable to retrieve available properties for image.') 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): image_id = self.kwargs['id'] try: return api.glance.image_get(self.request, image_id) except Exception: msg = _('Unable to retrieve the image to be updated.') exceptions.handle(self.request, msg, redirect=reverse('horizon:admin:images:index'))