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[OpenStack Infra <1856243@xxxxxxxxxxxxxxxxxx>]

Reviewed:  https://review.opendev.org/699858
Committed: https://git.openstack.org/cgit/openstack/horizon/commit/?id=9637d733749d741d5aac3b89b92e100d32fbdbb0
Submitter: Zuul
Branch:    master

commit 9637d733749d741d5aac3b89b92e100d32fbdbb0
Author: KeithMnemonic <kberger@xxxxxxxx>
Date:   Wed Dec 18 11:22:09 2019 -0800

    Fix "prev" link pagination for instances with identical timestamps
    
    This patch resolves an issue with the "prev" link when instances
    have identical "created_at" values. This can occur when creating
    instance using the "min/max count" option. The reverse sort does not
    work correctly as the server list returned from nova is not an exact
    reverse as the forward sort. It looks like the combination of sort_keys
    must be unique to ensure the forward and reverse pagination properly.
    As a workaround 'uuid' (server ID) is added to 'sort_keys'.
    In addition, 'display_name' is added before 'uuid' in 'sort_keys'
    to list servers in the alphabetical order (which sounds natural).
    
    Closes-Bug #1856243
    Change-Id: I73234b2c69ce8ea648b4a9721abe4f5670031909


** Changed in: horizon
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1856243

Title:
  "prev" link in Horizon instances panel does not paginate correctly.

Status in OpenStack Dashboard (Horizon):
  Fix Released

Bug description:
  The prev link that appears on an "Instances" page when the number of
  instances is greater than the admin setting of "Items per page" is not
  working.  This is easily reproducible on devstack (master) by doing
  the following

  1) I create 5 test instances test-1 to test-5

  2) In Settings found by clicking the admin button on the upper right
  side in Horizon, I change "Items per page to 2"

  3) In the Instances page, I see for example test-5 and test-4.

  4) If I click "next" it now shows test-2 and test-1.

  5) If I now click "prev", it shows test-3 and test-1

  6) If I click next it now shows test-3.

  7) If I click prev, I get nothing.

  It seems if you only click next, it does step forward correctly.
  something with "prev" seems to not keep the correct sort order.

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