168aa7e162
This is a follow up patch to https://review.openstack.org/#/c/142802 that adds documentation and also improves code readability in the PageTitleMixin. Change-Id: Iac7666252b5ceb9611e0688ef90173edf90475d9 Closes-Bug: 1420744
83 lines
3.3 KiB
Python
83 lines
3.3 KiB
Python
# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from django.utils.translation import ugettext_lazy as _
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from horizon import exceptions
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from horizon import tables
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from openstack_dashboard import api
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from openstack_dashboard.usage import base
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class UsageView(tables.DataTableView):
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usage_class = None
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show_terminated = True
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csv_template_name = None
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page_title = _("Overview")
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def __init__(self, *args, **kwargs):
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super(UsageView, self).__init__(*args, **kwargs)
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if not issubclass(self.usage_class, base.BaseUsage):
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raise AttributeError("You must specify a usage_class attribute "
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"which is a subclass of BaseUsage.")
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def get_template_names(self):
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if self.request.GET.get('format', 'html') == 'csv':
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return (self.csv_template_name or
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".".join((self.template_name.rsplit('.', 1)[0], 'csv')))
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return self.template_name
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def get_content_type(self):
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if self.request.GET.get('format', 'html') == 'csv':
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return "text/csv"
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return "text/html"
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def get_data(self):
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try:
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project_id = self.kwargs.get('project_id',
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self.request.user.tenant_id)
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self.usage = self.usage_class(self.request, project_id)
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self.usage.summarize(*self.usage.get_date_range())
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self.usage.get_limits()
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self.kwargs['usage'] = self.usage
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return self.usage.usage_list
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except Exception:
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exceptions.handle(self.request,
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_('Unable to retrieve usage information.'))
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return []
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def get_context_data(self, **kwargs):
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context = super(UsageView, self).get_context_data(**kwargs)
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context['table'].kwargs['usage'] = self.usage
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context['form'] = self.usage.form
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context['usage'] = self.usage
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try:
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context['simple_tenant_usage_enabled'] = \
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api.nova.extension_supported('SimpleTenantUsage', self.request)
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except Exception:
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context['simple_tenant_usage_enabled'] = True
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return context
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def render_to_response(self, context, **response_kwargs):
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if self.request.GET.get('format', 'html') == 'csv':
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render_class = self.csv_response_class
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response_kwargs.setdefault("filename", "usage.csv")
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else:
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render_class = self.response_class
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context = self.render_context_with_title(context)
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resp = render_class(request=self.request,
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template=self.get_template_names(),
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context=context,
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content_type=self.get_content_type(),
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**response_kwargs)
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return resp
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