# Copyright 2013 Rackspace Hosting
#
# 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 database instances.
"""
from collections import OrderedDict
import logging
from django.core.urlresolvers import reverse
from django.core.urlresolvers import reverse_lazy
from django.utils.translation import ugettext_lazy as _
import six
from horizon import exceptions
from horizon import forms as horizon_forms
from horizon import tables as horizon_tables
from horizon import tabs as horizon_tabs
from horizon.utils import memoized
from horizon import workflows as horizon_workflows
from openstack_dashboard.contrib.trove import api
from openstack_dashboard.contrib.trove.content.databases import forms
from openstack_dashboard.contrib.trove.content.databases import tables
from openstack_dashboard.contrib.trove.content.databases import tabs
from openstack_dashboard.contrib.trove.content.databases import workflows
from openstack_dashboard.dashboards.project.instances \
import utils as instance_utils
LOG = logging.getLogger(__name__)
[docs]class IndexView(horizon_tables.DataTableView):
table_class = tables.InstancesTable
template_name = 'project/databases/index.html'
page_title = _("Instances")
[docs] def has_more_data(self, table):
return self._more
@memoized.memoized_method
[docs] def get_flavors(self):
try:
flavors = api.trove.flavor_list(self.request)
except Exception:
flavors = []
msg = _('Unable to retrieve database size information.')
exceptions.handle(self.request, msg)
return OrderedDict((six.text_type(flavor.id), flavor)
for flavor in flavors)
def _extra_data(self, instance):
flavor = self.get_flavors().get(instance.flavor["id"])
if flavor is not None:
instance.full_flavor = flavor
instance.host = tables.get_host(instance)
return instance
[docs] def get_data(self):
marker = self.request.GET.get(
tables.InstancesTable._meta.pagination_param)
# Gather our instances
try:
instances = api.trove.instance_list(self.request, marker=marker)
self._more = instances.next or False
except Exception:
self._more = False
instances = []
msg = _('Unable to retrieve database instances.')
exceptions.handle(self.request, msg)
map(self._extra_data, instances)
return instances
[docs]class LaunchInstanceView(horizon_workflows.WorkflowView):
workflow_class = workflows.LaunchInstance
template_name = "project/databases/launch.html"
page_title = _("Launch Database")
[docs] def get_initial(self):
initial = super(LaunchInstanceView, self).get_initial()
initial['project_id'] = self.request.user.project_id
initial['user_id'] = self.request.user.id
return initial
[docs]class DetailView(horizon_tabs.TabbedTableView):
tab_group_class = tabs.InstanceDetailTabs
template_name = 'project/databases/detail.html'
page_title = _("Instance Details: {{ instance.name }}")
[docs] def get_context_data(self, **kwargs):
context = super(DetailView, self).get_context_data(**kwargs)
instance = self.get_data()
table = tables.InstancesTable(self.request)
context["instance"] = instance
context["url"] = self.get_redirect_url()
context["actions"] = table.render_row_actions(instance)
return context
@memoized.memoized_method
[docs] def get_data(self):
try:
LOG.info("Obtaining instance for detailed view ")
instance_id = self.kwargs['instance_id']
instance = api.trove.instance_get(self.request, instance_id)
instance.host = tables.get_host(instance)
except Exception:
msg = _('Unable to retrieve details '
'for database instance: %s') % instance_id
exceptions.handle(self.request, msg,
redirect=self.get_redirect_url())
try:
instance.full_flavor = api.trove.flavor_get(
self.request, instance.flavor["id"])
except Exception:
LOG.error('Unable to retrieve flavor details'
' for database instance: %s' % instance_id)
return instance
[docs] def get_tabs(self, request, *args, **kwargs):
instance = self.get_data()
return self.tab_group_class(request, instance=instance, **kwargs)
@staticmethod
[docs] def get_redirect_url():
return reverse('horizon:project:databases:index')
[docs]class ResizeVolumeView(horizon_forms.ModalFormView):
form_class = forms.ResizeVolumeForm
template_name = 'project/databases/resize_volume.html'
success_url = reverse_lazy('horizon:project:databases:index')
page_title = _("Resize Database Volume")
@memoized.memoized_method
[docs] def get_object(self, *args, **kwargs):
instance_id = self.kwargs['instance_id']
try:
return api.trove.instance_get(self.request, instance_id)
except Exception:
msg = _('Unable to retrieve instance details.')
redirect = reverse('horizon:project:databases:index')
exceptions.handle(self.request, msg, redirect=redirect)
[docs] def get_context_data(self, **kwargs):
context = super(ResizeVolumeView, self).get_context_data(**kwargs)
context['instance_id'] = self.kwargs['instance_id']
return context
[docs] def get_initial(self):
instance = self.get_object()
return {'instance_id': self.kwargs['instance_id'],
'orig_size': instance.volume.get('size', 0)}
[docs]class ResizeInstanceView(horizon_forms.ModalFormView):
form_class = forms.ResizeInstanceForm
template_name = 'project/databases/resize_instance.html'
success_url = reverse_lazy('horizon:project:databases:index')
page_title = _("Resize Database Instance")
@memoized.memoized_method
[docs] def get_object(self, *args, **kwargs):
instance_id = self.kwargs['instance_id']
try:
instance = api.trove.instance_get(self.request, instance_id)
flavor_id = instance.flavor['id']
flavors = {}
for i, j in self.get_flavors():
flavors[str(i)] = j
if flavor_id in flavors:
instance.flavor_name = flavors[flavor_id]
else:
flavor = api.trove.flavor_get(self.request, flavor_id)
instance.flavor_name = flavor.name
return instance
except Exception:
redirect = reverse('horizon:project:databases:index')
msg = _('Unable to retrieve instance details.')
exceptions.handle(self.request, msg, redirect=redirect)
[docs] def get_context_data(self, **kwargs):
context = super(ResizeInstanceView, self).get_context_data(**kwargs)
context['instance_id'] = self.kwargs['instance_id']
return context
@memoized.memoized_method
[docs] def get_flavors(self, *args, **kwargs):
try:
flavors = api.trove.flavor_list(self.request)
return instance_utils.sort_flavor_list(self.request, flavors)
except Exception:
redirect = reverse("horizon:project:databases:index")
exceptions.handle(self.request,
_('Unable to retrieve flavors.'),
redirect=redirect)
[docs] def get_initial(self):
initial = super(ResizeInstanceView, self).get_initial()
obj = self.get_object()
if obj:
initial.update({'instance_id': self.kwargs['instance_id'],
'old_flavor_id': obj.flavor['id'],
'old_flavor_name': getattr(obj,
'flavor_name', ''),
'flavors': self.get_flavors()})
return initial