NoMethodError after course refresh times out

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#425 opened on Sep 29, 2016 0 comments 0 reactions 0 assignees View on GitHub

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Assessment

Difficulty: 3/5
Estimated time: 1-2 days
Newbie friendliness: 35/100

Issue type: Bug
Clarity: Mostly clear
Activity status: Stale
Tech stack: ruby
Domain: backend

Research direction

Start with app/controllers/setup/setup_controller.rb, especially add_phase and print_setup_phases at lines 54-73, then follow the call from app/controllers/setup/course_details_controller.rb:17. Reproduce the custom course setup request after a timed-out refresh and identify why the phase object is nil. Done means the request no longer raises NoMethodError or returns a 500 response.

Written by the indexing model from the issue text.

Description

I, [2016-09-29T12:47:14.656054 #5733]  INFO -- : [D8E87AD6-8642-11E6-B378-7B155001D3F1] Started GET "/staging/setup/hy/course/new/custom" for <snip> at 2016-09-29 12:47:14 +0000
I, [2016-09-29T12:47:14.659769 #5733]  INFO -- : [D8E87AD6-8642-11E6-B378-7B155001D3F1] Processing by Setup::CourseDetailsController#custom as HTML
I, [2016-09-29T12:47:14.659831 #5733]  INFO -- : [D8E87AD6-8642-11E6-B378-7B155001D3F1]   Parameters: {"organization_id"=>"hy"}
I, [2016-09-29T12:47:14.663920 #5733]  INFO -- : [D8E87AD6-8642-11E6-B378-7B155001D3F1] Completed 500 Internal Server Error in 4ms
F, [2016-09-29T12:47:14.665595 #5733] FATAL -- : [D8E87AD6-8642-11E6-B378-7B155001D3F1] 
NoMethodError (undefined method `id' for nil:NilClass):
  app/controllers/setup/setup_controller.rb:73:in `add_phase'
  app/controllers/setup/setup_controller.rb:66:in `block in print_setup_phases'
  app/controllers/setup/setup_controller.rb:54:in `each'
  app/controllers/setup/setup_controller.rb:54:in `each_with_index'
  app/controllers/setup/setup_controller.rb:54:in `print_setup_phases'
  app/controllers/setup/course_details_controller.rb:17:in `custom'

Dominant language: Ruby
Stars: 51
Forks: 42
Avg merge: 1h 27m
Merged PRs (30d): 1

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