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[Sergei Chipiga <schipiga@xxxxxxxxxxxx>]

Public bug reported:

During cell status waiting we need to verify that row is defined before
asking row.cells. DOM is inconstant structure in time, and we may call
_get_row, when table is not in DOM (for ex, when table is reloaded). So
we should consider that situation and don't raise Exception that
NoneType hasn't 'cells' attribute.

** Affects: horizon
     Importance: Undecided
     Assignee: Sergei Chipiga (schipiga)
         Status: In Progress

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https://bugs.launchpad.net/bugs/1572036

Title:
  Check that row is defined when wait cell status

Status in OpenStack Dashboard (Horizon):
  In Progress

Bug description:
  During cell status waiting we need to verify that row is defined
  before asking row.cells. DOM is inconstant structure in time, and we
  may call _get_row, when table is not in DOM (for ex, when table is
  reloaded). So we should consider that situation and don't raise
  Exception that NoneType hasn't 'cells' attribute.

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