Plugins » Katello

To reproduce:
Search for anything on Host collections page.

Looks like it is an error in the scoped search gem.

GET http://192.168.121.48:3000/katello/api/host_collections/auto_complete_searc…zation_id=1&page=1&paged=true&search=name+%3D+&sort_by=name&sort_order=ASC 500 (Internal Server Error)

2016-07-06T15:39:09 [app] [I] Started GET "/katello/api/host_collections/auto_complete_search?organization_id=1&page=1&paged=true&search=organization_i&sort_by=name&sort_order=ASC" for 192.168.121.1 at 2016-07-06 15:39:09 -0400
2016-07-06T15:39:09 [app] [I] Processing by Katello::Api::V2::HostCollectionsController#auto_complete_search as JSON
2016-07-06T15:39:09 [app] [I]   Parameters: {"organization_id"=>"1", "page"=>"1", "paged"=>"true", "search"=>"organization_i", "sort_by"=>"name", "sort_order"=>"ASC", "api_version"=>"v2"}
2016-07-06T15:39:09 [app] [D] Setting current user thread-local variable to admin
2016-07-06T15:39:09 [app] [E] ActiveRecord::UnknownAttributeError: unknown attribute '' for Class.
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/definition.rb:88:in `column'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/definition.rb:96:in `type'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/definition.rb:214:in `block in default_fields_for'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/definition.rb:214:in `select'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/definition.rb:214:in `default_fields_for'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/query_builder.rb:416:in `to_sql'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/query_builder.rb:51:in `build_find_params'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/query_builder.rb:22:in `build_query'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/auto_complete_builder.rb:87:in `is_query_valid'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/auto_complete_builder.rb:37:in `build_autocomplete_options'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/auto_complete_builder.rb:21:in `auto_complete'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/scoped_search-3.2.2/lib/scoped_search/definition.rb:274:in `complete_for'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activerecord-4.2.6/lib/active_record/relation/delegation.rb:70:in `block in complete_for'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activerecord-4.2.6/lib/active_record/relation.rb:302:in `scoping'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activerecord-4.2.6/lib/active_record/relation/delegation.rb:70:in `complete_for'
 | /home/vagrant/katello/app/controllers/katello/concerns/filtered_auto_complete_search.rb:11:in `auto_complete_search'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/abstract_controller/base.rb:198:in `process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal/rendering.rb:10:in `process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/abstract_controller/callbacks.rb:20:in `block in process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:117:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:117:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:555:in `block (2 levels) in compile'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /home/vagrant/foreman/app/controllers/api/v2/base_controller.rb:152:in `disable_json_root'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:432:in `block in make_lambda'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `block in halting'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `block in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rails-observers-0.1.2/lib/rails/observers/action_controller/caching/sweeping.rb:73:in `around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:455:in `public_send'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:455:in `block in make_lambda'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `block in halting'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `block in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /home/vagrant/foreman/app/models/concerns/foreman/thread_session.rb:32:in `clear_thread'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:432:in `block in make_lambda'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `block in halting'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `block in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:498:in `block (2 levels) in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:313:in `block (2 levels) in halting'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rails-observers-0.1.2/lib/rails/observers/action_controller/caching/sweeping.rb:73:in `around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:455:in `public_send'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:455:in `block in make_lambda'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:312:in `block in halting'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:497:in `block in around'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:505:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:92:in `__run_callbacks__'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:778:in `_run_process_action_callbacks'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:81:in `run_callbacks'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/abstract_controller/callbacks.rb:19:in `process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal/rescue.rb:29:in `process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal/instrumentation.rb:32:in `block in process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/notifications.rb:164:in `block in instrument'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/notifications.rb:164:in `instrument'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal/instrumentation.rb:30:in `process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activerecord-4.2.6/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
 | /home/vagrant/katello/app/controllers/katello/concerns/api/api_controller.rb:39:in `process_action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/abstract_controller/base.rb:137:in `process'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionview-4.2.6/lib/action_view/rendering.rb:30:in `process'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal.rb:196:in `dispatch'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_controller/metal.rb:237:in `block in action'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:74:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:43:in `serve'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/routing/mapper.rb:49:in `serve'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:43:in `block in serve'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:30:in `each'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:30:in `serve'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:817:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/engine.rb:518:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/railtie.rb:194:in `public_send'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/railtie.rb:194:in `method_missing'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/routing/mapper.rb:51:in `serve'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:43:in `block in serve'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:30:in `each'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/journey/router.rb:30:in `serve'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/routing/route_set.rb:817:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/static.rb:120:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/static.rb:120:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/apipie-rails-0.3.6/lib/apipie/static_dispatcher.rb:65:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/bullet-5.1.0/lib/bullet/rack.rb:12:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/apipie-rails-0.3.6/lib/apipie/extractor/recorder.rb:132:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/apipie-rails-0.3.6/lib/apipie/middleware/checksum_in_headers.rb:27:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-openid-1.4.2/lib/rack/openid.rb:98:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/etag.rb:24:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/conditionalget.rb:25:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/head.rb:13:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/params_parser.rb:27:in `call'
 | /home/vagrant/foreman/lib/middleware/catch_json_parse_errors.rb:9:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/flash.rb:260:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/session/abstract/id.rb:225:in `context'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/session/abstract/id.rb:220:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/cookies.rb:560:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activerecord-4.2.6/lib/active_record/query_cache.rb:36:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activerecord-4.2.6/lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activerecord-4.2.6/lib/active_record/migration.rb:377:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:88:in `__run_callbacks__'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/callbacks.rb:81:in `run_callbacks'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/reloader.rb:73:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/remote_ip.rb:78:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/rack/logger.rb:38:in `call_app'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/rack/logger.rb:22:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/quiet_assets-1.1.0/lib/quiet_assets.rb:27:in `call_with_quiet_assets'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/request_id.rb:21:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/methodoverride.rb:22:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/runtime.rb:18:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/activesupport-4.2.6/lib/active_support/cache/strategy/local_cache_middleware.rb:28:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/lock.rb:17:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/actionpack-4.2.6/lib/action_dispatch/middleware/static.rb:120:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/sendfile.rb:113:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/engine.rb:518:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/application.rb:165:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/railtie.rb:194:in `public_send'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/railties-4.2.6/lib/rails/railtie.rb:194:in `method_missing'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/urlmap.rb:66:in `block in call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/urlmap.rb:50:in `each'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/urlmap.rb:50:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/rack-1.6.4/lib/rack/content_length.rb:15:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/puma-3.4.0/lib/puma/configuration.rb:224:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/puma-3.4.0/lib/puma/server.rb:569:in `handle_request'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/puma-3.4.0/lib/puma/server.rb:406:in `process_client'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/puma-3.4.0/lib/puma/server.rb:271:in `block in run'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/puma-3.4.0/lib/puma/thread_pool.rb:114:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/puma-3.4.0/lib/puma/thread_pool.rb:114:in `block in spawn_thread'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/logging-2.1.0/lib/logging/diagnostic_context.rb:450:in `call'
 | /home/vagrant/.rvm/gems/ruby-2.2.4/gems/logging-2.1.0/lib/logging/diagnostic_context.rb:450:in `block in create_with_logging_context'
2016-07-06T15:39:09 [app] [I] Completed 500 Internal Server Error in 5ms (Views: 0.1ms | ActiveRecord: 0.4ms)
2016-07-06T15:39:09 [app] [D] With body: {"displayMessage":"unknown attribute '' for Class.","errors":["unknown attribute '' for Class."]}