Description of problem:

If in Satellite there are tasks that are in state: 'planning' invoking foreman-rake foreman_tasks:export_tasks will fails.

Version-Release number of selected component (if applicable):

experienced with:

tfm-rubygem-foreman-tasks-0.7.14.14-1.el7sat.noarch

but expecting this to be valid also on later versions.


How reproducible:
always

Steps to Reproduce:
1. have something that crash a task in the planning phase (like an OutOfSpace of the FileSystem)
2. foreman-rake foreman_tasks:export_tasks
3. wait a loooong time for having t

Actual results:

rake aborted!
NoMethodError: undefined method `state' for nil:NilClass
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:165:in `step_css_class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:4:in `block in singleton class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:-5:in `instance_eval'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:-5:in `singleton class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:-7:in `__tilt_18397580'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `call'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `evaluate'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:61:in `erb'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:12:in `block (2 levels) in singleton class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:11:in `each'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:11:in `block in singleton class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:-5:in `instance_eval'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:-5:in `singleton class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/plan_step.erb:-7:in `__tilt_18397580'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `call'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `evaluate'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:61:in `erb'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/show.erb:48:in `block in singleton class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/show.erb:-5:in `instance_eval'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/show.erb:-5:in `singleton class'
/opt/theforeman/tfm/root/usr/share/gems/gems/dynflow-0.8.13.6/web/views/show.erb:-7:in `__tilt_18397580'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `call'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `evaluate'
/opt/rh/rh-ror41/root/usr/share/gems/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:61:in `erb'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:46:in `render_task'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:264:in `block (5 levels) in <top (required)>'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:264:in `open'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:264:in `block (4 levels) in <top (required)>'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activerecord-4.1.5/lib/active_record/relation/delegation.rb:132:in `each'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activerecord-4.1.5/lib/active_record/relation/delegation.rb:132:in `each_with_index'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activerecord-4.1.5/lib/active_record/relation/delegation.rb:132:in `public_send'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activerecord-4.1.5/lib/active_record/relation/delegation.rb:132:in `method_missing'
/opt/rh/rh-ror41/root/usr/share/gems/gems/activerecord-4.1.5/lib/active_record/relation/delegation.rb:99:in `method_missing'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:263:in `block (3 levels) in <top (required)>'
/opt/rh/rh-ruby22/root/usr/share/ruby/tmpdir.rb:88:in `mktmpdir'
/opt/theforeman/tfm/root/usr/share/gems/gems/foreman-tasks-0.7.14.14/lib/foreman_tasks/tasks/export_tasks.rake:256:in `block (2 levels) in <top (required)>'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/task.rb:240:in `call'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/task.rb:240:in `block in execute'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/task.rb:235:in `each'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/task.rb:235:in `execute'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/task.rb:179:in `block in invoke_with_call_chain'
/opt/rh/rh-ruby22/root/usr/share/ruby/monitor.rb:211:in `mon_synchronize'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/task.rb:172:in `invoke_with_call_chain'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/task.rb:165:in `invoke'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:150:in `invoke_task'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:106:in `block (2 levels) in top_level'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:106:in `each'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:106:in `block in top_level'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:115:in `run_with_threads'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:100:in `top_level'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:78:in `block in run'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:176:in `standard_exception_handling'
/opt/rh/rh-ruby22/root/usr/share/gems/gems/rake-10.4.2/lib/rake/application.rb:75:in `run'
/opt/rh/rh-ruby22/root/usr/bin/rake:33:in `<main>'
Tasks: TOP => foreman_tasks:export_tasks

Expected results:

foreman_tasks:export_tasks could be smarter and being able to deal with that situation.
Has this being addressed in future


Additional info:

This issue happen when a customer is already having trouble and is looking for help so it add stress to a stressed situation, so would be good to have it sorted out to users to provide support the task status.