185 lines
6.7 KiB
Python
185 lines
6.7 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Nebula, Inc.
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#
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# 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.core.urlresolvers import NoReverseMatch # noqa
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from django.core.urlresolvers import reverse
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from django.template.defaultfilters import title # noqa
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from django.utils.http import urlencode # noqa
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from django.utils.translation import pgettext_lazy
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from django.utils.translation import string_concat # noqa
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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 manila_ui.api import manila
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from openstack_dashboard.usage import quotas
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DELETABLE_STATES = ("available", "error")
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class UpdateRow(tables.Row):
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ajax = True
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def get_data(self, request, snapshot_id):
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snapshot = manila.share_snapshot_get(request, snapshot_id)
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if not snapshot.name:
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snapshot.name = snapshot_id
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return snapshot
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def get_size(snapshot):
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return _("%sGB") % snapshot.size
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class CreateSnapshot(tables.LinkAction):
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name = "snapshots"
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verbose_name = _("Create Snapshot")
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url = "horizon:project:shares:create_snapshot"
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classes = ("ajax-modal", "btn-camera")
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policy_rules = (("share", "share:create_snapshot"),)
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def get_policy_target(self, request, datum=None):
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project_id = None
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if datum:
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project_id = getattr(datum, "project_id", None)
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return {"project_id": project_id}
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def allowed(self, request, share=None):
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usages = quotas.tenant_quota_usages(request)
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if usages['snapshots']['available'] <= 0:
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if "disabled" not in self.classes:
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self.classes = [c for c in self.classes] + ['disabled']
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self.verbose_name = string_concat(self.verbose_name, ' ',
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_("(Quota exceeded)"))
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else:
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self.verbose_name = _("Create Snapshot")
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classes = [c for c in self.classes if c != "disabled"]
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self.classes = classes
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# NOTE(vponomaryov): Disable form with creation of a snapshot for
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# shares that has attr 'snapshot_support' equal to False.
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if hasattr(share, 'snapshot_support'):
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snapshot_support = share.snapshot_support
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else:
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# NOTE(vponomaryov): Allow creation of a snapshot for shares that
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# do not have such attr for backward compatibility.
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snapshot_support = True
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return share.status in ("available", "in-use") and snapshot_support
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class DeleteSnapshot(tables.DeleteAction):
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data_type_singular = _("Snapshot")
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data_type_plural = _("Snapshots")
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action_past = _("Scheduled deletion of %(data_type)s")
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policy_rules = (("share", "share:delete_snapshot"),)
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def get_policy_target(self, request, datum=None):
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project_id = None
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if datum:
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project_id = getattr(datum, "project_id", None)
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return {"project_id": project_id}
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def delete(self, request, obj_id):
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obj = self.table.get_object_by_id(obj_id)
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name = self.table.get_object_display(obj)
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try:
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manila.share_snapshot_delete(request, obj_id)
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except Exception:
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msg = _('Unable to delete snapshot "%s". One or more shares '
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'depend on it.')
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exceptions.check_message(["snapshots", "dependent"], msg % name)
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raise
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def allowed(self, request, snapshot=None):
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if snapshot:
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return snapshot.status in DELETABLE_STATES
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return True
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class CreateShareFromSnapshot(tables.LinkAction):
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name = "create_from_snapshot"
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verbose_name = _("Create Share")
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url = "horizon:project:shares:create"
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classes = ("ajax-modal", "btn-camera")
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policy_rules = (("share", "share:create"),)
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def get_link_url(self, datum):
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base_url = reverse(self.url)
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params = urlencode({"snapshot_id": self.table.get_object_id(datum)})
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return "?".join([base_url, params])
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def allowed(self, request, share=None):
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return share.status == "available"
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class EditSnapshot(tables.LinkAction):
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name = "edit_snapshot"
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verbose_name = _("Edit Snapshot")
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url = "horizon:project:shares:edit_snapshot"
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classes = ("ajax-modal", "btn-camera")
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class SnapshotShareNameColumn(tables.Column):
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def get_link_url(self, snapshot):
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return reverse(self.link, args=(snapshot.share_id,))
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class SnapshotsTable(tables.DataTable):
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STATUS_CHOICES = (
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("in-use", True),
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("available", True),
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("creating", None),
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("error", False),
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)
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STATUS_DISPLAY_CHOICES = (
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("in-use", pgettext_lazy("Current status of snapshot", u"In-use")),
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("available", pgettext_lazy("Current status of snapshot",
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u"Available")),
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("creating", pgettext_lazy("Current status of snapshot", u"Creating")),
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("error", pgettext_lazy("Current status of snapshot", u"Error")),
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)
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name = tables.Column("name",
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verbose_name=_("Name"),
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link="horizon:project:shares:snapshot-detail")
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description = tables.Column("description",
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verbose_name=_("Description"),
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truncate=40)
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size = tables.Column(get_size,
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verbose_name=_("Size"),
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attrs={'data-type': 'size'})
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status = tables.Column("status",
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filters=(title,),
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verbose_name=_("Status"),
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status=True,
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status_choices=STATUS_CHOICES,
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display_choices=STATUS_DISPLAY_CHOICES)
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source = SnapshotShareNameColumn("share",
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verbose_name=_("Source"),
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link="horizon:project:shares:detail")
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def get_object_display(self, obj):
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return obj.name
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class Meta(object):
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name = "snapshots"
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verbose_name = _("Snapshots")
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status_columns = ["status"]
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row_class = UpdateRow
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table_actions = (DeleteSnapshot, )
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row_actions = (DeleteSnapshot, CreateShareFromSnapshot, EditSnapshot)
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