Listing groups roles performance

[Rodrigo Duarte]

In UpdateProjectGroupsAction, is done a call to every group in a project to get their roles: https://github.com/openstack/horizon/blob/master/openstack_dashboard/dashboards/identity/projects/workflows.py#L313. With Identity V3 API, it's possible to get this information using a single API call: GET v3/role_assignments?scope.project.id=<project_id>

This issue is similar to bug #1278920.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/121410

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/121410
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=4a155e1b2b52428c0358dbc265a69f6284440d98
Submitter: Jenkins
Branch: master

commit 4a155e1b2b52428c0358dbc265a69f6284440d98
Author: Rodrigo Duarte Sousa <email address hidden>
Date: Sun Sep 14 11:52:16 2014 -0300

    Improve list groups roles performance

    Uses GET v3/role_assignments?scope.project.id=<project_id>
    to fetch groups roles in a given project, instead of doing
    an individual call for every known group.

    Closes-Bug: 1369137
    Change-Id: Ie64dfddc0d8cbb4f22f3ee3b19c248ca6973e96c