Manage Submissions Issue: Fill In Empty Submissions is not working

[robsimmons]

"Create submission" is also broken:

Error Information

--- !ruby/exception:NoMethodError message: undefined method `split' for nil:NilClass

Stack Dump

/opt/autolab/build/Autolab/app/controllers/submissions_controller.rb:54:in create' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal/implicit_render.rb:4:insend_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/abstract_controller/base.rb:198:in process_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal/rendering.rb:10:inprocess_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/abstract_controller/callbacks.rb:20:in block in process_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:117:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:117:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:151:inblock in halting_and_conditional' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:234:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:234:inblock in halting' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:151:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:151:inblock in halting_and_conditional' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:inblock in halting' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:151:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:151:inblock in halting_and_conditional' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:inblock in halting' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:inblock in halting' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:151:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:151:inblock in halting_and_conditional' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:234:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:234:inblock in halting' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:inblock in halting' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:169:inblock in halting' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:92:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:92:in_run_callbacks' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:734:in _run_process_action_callbacks' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:81:inrun_callbacks' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/abstract_controller/callbacks.rb:19:in process_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal/rescue.rb:29:inprocess_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:31:in block in process_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/notifications.rb:164:inblock in instrument' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/notifications/instrumenter.rb:20:in instrument' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/notifications.rb:164:ininstrument' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal/instrumentation.rb:30:in process_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal/params_wrapper.rb:250:inprocess_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.0/lib/active_record/railties/controller_runtime.rb:18:in process_action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/abstract_controller/base.rb:137:inprocess' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionview-4.2.0/lib/action_view/rendering.rb:30:in process' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal.rb:195:indispatch' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal/rack_delegation.rb:13:in dispatch' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_controller/metal.rb:236:inblock in action' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:73:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:73:indispatch' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:42:in serve' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/journey/router.rb:43:inblock in serve' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/journey/router.rb:30:in each' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/journey/router.rb:30:inserve' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/routing/route_set.rb:802:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:186:incall!' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:164:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:186:incall!' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:164:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:186:incall!' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/omniauth-1.2.2/lib/omniauth/strategy.rb:164:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/bundler/gems/exception_notification-f9dee5b5f6a1/lib/exception_notification/rack.rb:28:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-ssl-enforcer-0.2.8/lib/rack/ssl-enforcer.rb:52:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/warden-1.2.3/lib/warden/manager.rb:35:inblock in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/warden-1.2.3/lib/warden/manager.rb:34:in catch' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/warden-1.2.3/lib/warden/manager.rb:34:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/etag.rb:24:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/conditionalget.rb:38:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/head.rb:13:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/params_parser.rb:27:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/flash.rb:260:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/session/abstract/id.rb:225:incontext' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/session/abstract/id.rb:220:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/cookies.rb:560:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.0/lib/active_record/query_cache.rb:36:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.0/lib/active_record/connection_adapters/abstract/connection_pool.rb:647:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/callbacks.rb:29:in block in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:88:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:88:in _run_callbacks' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:734:in_run_call_callbacks' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/callbacks.rb:81:in run_callbacks' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/callbacks.rb:27:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/remote_ip.rb:78:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/debug_exceptions.rb:17:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/show_exceptions.rb:30:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/rack/logger.rb:38:incall_app' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/rack/logger.rb:20:in block in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/tagged_logging.rb:68:inblock in tagged' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/tagged_logging.rb:26:in tagged' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/tagged_logging.rb:68:intagged' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/rack/logger.rb:20:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/actionpack-4.2.0/lib/action_dispatch/middleware/request_id.rb:21:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/methodoverride.rb:22:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/runtime.rb:18:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.0/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rack-1.6.0/lib/rack/sendfile.rb:113:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/engine.rb:518:in call' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/application.rb:164:incall' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/railtie.rb:194:in public_send' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/railties-4.2.0/lib/rails/railtie.rb:194:inmethod_missing' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/passenger-4.0.57/lib/phusion_passenger/rack/thread_handler_extension.rb:74:in process_request' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/passenger-4.0.57/lib/phusion_passenger/request_handler/thread_handler.rb:141:inaccept_and_process_next_request' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/passenger-4.0.57/lib/phusion_passenger/request_handler/thread_handler.rb:109:in main_loop' /var/www/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/passenger-4.0.57/lib/phusion_passenger/request_handler.rb:455:inblock (3 levels) in start_threads'