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There are various reasons that can cause the execution plan for a task not being available. We should still try
to not fail completely at those situations and try to show at least the data we have available in foreman_tasks_tasks table.
How to reproduce:
Follow http://projects.theforeman.org/issues/19146 for reproducer steps and go to the tasks details pages after doing so.
Expected results: the tasks page is still showing at least some data, not failing completely.
Current results: the tasks page is broken, returning 500 status code
An example of such an error might be:
Oops, we're sorry but something went wrong Value (NilClass) '' is not any of: Dynflow::ExecutionPlan::Steps::Abstract.
VERIFIED.
@satellite-6.2.10-3.0.el7sat.noarch
tfm-rubygem-foreman-tasks-0.7.14.14-1.el7sat.noarch
using manual reproducer described in comment#0:
5. Navigate to /foreman_tasks/tasks
REPRO:
(x) Oops, we're sorry but something went wrong Value (NilClass) '' is not any of: Dynflow::ExecutionPlan::Steps::Abstract.
vs.
FIX:
Actions::Katello::Repository::CapsuleGenerateAndSync N/A
Actions::Katello::Repository::Sync N/A
Actions::Katello::Repository::Sync N/A
>>> Tasks page/detail renders and tasks are listed even if there are invalid tasks
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2017:1553