Source code for openstack_dashboard.dashboards.project.networks.subnets.tables

# Copyright 2012 NEC Corporation
#
#    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 logging

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

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

from openstack_dashboard import api
from openstack_dashboard import policy
from openstack_dashboard.usage import quotas


LOG = logging.getLogger(__name__)


[docs]class CheckNetworkEditable(object): """Mixin class to determine the specified network is editable."""
[docs] def allowed(self, request, datum=None): # Only administrator is allowed to create and manage subnets # on shared networks. network = self.table._get_network() if network.shared: return False return True
[docs]class SubnetPolicyTargetMixin(policy.PolicyTargetMixin):
[docs] def get_policy_target(self, request, datum=None): policy_target = super(SubnetPolicyTargetMixin, self)\ .get_policy_target(request, datum) network = self.table._get_network() policy_target["network:project_id"] = network.tenant_id return policy_target
[docs]class DeleteSubnet(SubnetPolicyTargetMixin, CheckNetworkEditable, tables.DeleteAction): @staticmethod
[docs] def action_present(count): return ungettext_lazy( u"Delete Subnet", u"Delete Subnets", count )
@staticmethod
[docs] def action_past(count): return ungettext_lazy( u"Deleted Subnet", u"Deleted Subnets", count )
policy_rules = (("network", "delete_subnet"),)
[docs] def delete(self, request, obj_id): try: api.neutron.subnet_delete(request, obj_id) except Exception: msg = _('Failed to delete subnet %s') % obj_id LOG.info(msg) network_id = self.table.kwargs['network_id'] redirect = reverse('horizon:project:networks:detail', args=[network_id]) exceptions.handle(request, msg, redirect=redirect)
[docs]class CreateSubnet(SubnetPolicyTargetMixin, CheckNetworkEditable, tables.LinkAction): name = "create" verbose_name = _("Create Subnet") url = "horizon:project:networks:addsubnet" classes = ("ajax-modal",) icon = "plus" policy_rules = (("network", "create_subnet"),)
[docs] def allowed(self, request, datum=None): usages = quotas.tenant_quota_usages(request) if usages['subnets']['available'] <= 0: if 'disabled' not in self.classes: self.classes = [c for c in self.classes] + ['disabled'] self.verbose_name = _('Create Subnet (Quota exceeded)') else: self.verbose_name = _('Create Subnet') self.classes = [c for c in self.classes if c != 'disabled'] return True
[docs]class UpdateSubnet(SubnetPolicyTargetMixin, CheckNetworkEditable, tables.LinkAction): name = "update" verbose_name = _("Edit Subnet") url = "horizon:project:networks:editsubnet" classes = ("ajax-modal",) icon = "pencil" policy_rules = (("network", "update_subnet"),)
[docs]class SubnetsTable(tables.DataTable): name = tables.Column("name_or_id", verbose_name=_("Name"), link='horizon:project:networks:subnets:detail') cidr = tables.Column("cidr", verbose_name=_("Network Address")) ip_version = tables.Column("ipver_str", verbose_name=_("IP Version")) gateway_ip = tables.Column("gateway_ip", verbose_name=_("Gateway IP")) failure_url = reverse_lazy('horizon:project:networks:index') @memoized.memoized_method def _get_network(self): try: network_id = self.kwargs['network_id'] network = api.neutron.network_get(self.request, network_id) network.set_id_as_name_if_empty(length=0) except Exception: msg = _('Unable to retrieve details for network "%s".') \ % (network_id) exceptions.handle(self.request, msg, redirect=self.failure_url) return network
[docs] class Meta(object): name = "subnets" verbose_name = _("Subnets") table_actions = (CreateSubnet, DeleteSubnet) row_actions = (UpdateSubnet, DeleteSubnet) hidden_title = False

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