Comment 2 for bug 1494934

Reviewed: https://review.openstack.org/222788
Committed: https://git.openstack.org/cgit/openstack/cinder/commit/?id=d2170a9e13047ea9a05ed78c4e6da61a5dfc46e2
Submitter: Jenkins
Branch: master

commit d2170a9e13047ea9a05ed78c4e6da61a5dfc46e2
Author: Patrick East <email address hidden>
Date: Fri Sep 11 14:12:03 2015 -0700

    Fix Pure get pgroup volume snapshot name

    When creating a volume from a consistency group snapshot we have to go
    look up the volume level snapshot from the group. Previously we could
    just directly get to the cgsnapshot model from the snapshot. After we
    switched to using the snapshot objects however we cannot do that (at
    least not until we have cgsnapshot objects too).

    As an interim solution we did a query to the REST API on the array to
    just list all of the snapshots. Unfortunately that doesn’t work on all
    versions of the Purity REST API. To have a more usable solution we need
    to do a db lookup to get the pgsnapshot.

    It’s not ideal, and will be removed ASAP, but for now we need to at
    least not regress in functionality.

    Change-Id: I73a4ad5883bf33ce282b5a49aa8acba66ffcb84f
    Closes-Bug: #1494934