Description of problem: Unhandled Exception changing configuration options


Version-Release number of selected component (if applicable): 5.4.0.0.24


How reproducible: 100%


Steps to Reproduce:
1. Goto Configure -> Configuration
2. Advanced Tab
3. Change the log level from 'info' to 'debug'
4. Change fog_log level from 'info' to 'debug'
5. Navigate to Cloud Providers
6. Navigate back to Configure -> Configuration

Actual results:
Unhandled Exception on entering the configuration page

Expected results:
No error

Additional info:


[----] F, [2015-05-06T09:39:25.926524 #2417:901e9c] FATAL -- : Error caught: [NoMethodError] undefined method `config' for #<Hash:0x00000011fcfb00>
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/core_ext/object/try.rb:36:in `try'
/var/www/miq/vmdb/app/controllers/ops_controller.rb:172:in `explorer'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal/implicit_render.rb:4:in `send_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/abstract_controller/base.rb:167:in `process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal/rendering.rb:10:in `process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/abstract_controller/callbacks.rb:18:in `block in process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:557:in `_run__3205189415578576249__process_action__4338809828808513984__callbacks'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:405:in `__run_callback'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:81:in `run_callbacks'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/abstract_controller/callbacks.rb:17:in `process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal/rescue.rb:29:in `process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/notifications.rb:123:in `block in instrument'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/notifications/instrumenter.rb:20:in `instrument'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/notifications.rb:123:in `instrument'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal/instrumentation.rb:29:in `process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal/params_wrapper.rb:207:in `process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activerecord/lib/active_record/railties/controller_runtime.rb:18:in `process_action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/abstract_controller/base.rb:121:in `process'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/abstract_controller/rendering.rb:45:in `process'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal.rb:203:in `dispatch'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_controller/metal.rb:246:in `block in action'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/routing/route_set.rb:73:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/routing/route_set.rb:73:in `dispatch'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/routing/route_set.rb:36:in `call'
/opt/rh/cfme-gemset/gems/journey-1.0.4/lib/journey/router.rb:68:in `block in call'
/opt/rh/cfme-gemset/gems/journey-1.0.4/lib/journey/router.rb:56:in `each'
/opt/rh/cfme-gemset/gems/journey-1.0.4/lib/journey/router.rb:56:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/routing/route_set.rb:608:in `call'
/opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:136:in `forward'
/opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:245:in `fetch'
/opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:185:in `lookup'
/opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:66:in `call!'
/opt/rh/cfme-gemset/gems/rack-cache-1.2/lib/rack/cache/context.rb:51:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/etag.rb:23:in `call'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/conditionalget.rb:25:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/head.rb:14:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/flash.rb:242:in `call'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/session/abstract/id.rb:210:in `context'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/session/abstract/id.rb:205:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/cookies.rb:341:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activerecord/lib/active_record/query_cache.rb:64:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:479:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:405:in `_run__2782888803643550742__call__1592471807457032937__callbacks'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:405:in `__run_callback'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/callbacks.rb:81:in `run_callbacks'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/rack/logger.rb:32:in `call_app'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/rack/logger.rb:18:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/request_id.rb:22:in `call'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/methodoverride.rb:21:in `call'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/runtime.rb:17:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/activesupport/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/lock.rb:15:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/actionpack/lib/action_dispatch/middleware/static.rb:63:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/engine.rb:484:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/application.rb:231:in `call'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/content_length.rb:14:in `call'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/rack/log_tailer.rb:17:in `call'
/opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:80:in `block in pre_process'
/opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:78:in `catch'
/opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:78:in `pre_process'
/opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:53:in `process'
/opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/connection.rb:38:in `receive_data'
/opt/rh/ruby200/root/usr/share/gems/gems/eventmachine-1.0.7/lib/eventmachine.rb:187:in `run_machine'
/opt/rh/ruby200/root/usr/share/gems/gems/eventmachine-1.0.7/lib/eventmachine.rb:187:in `run'
/opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/backends/base.rb:61:in `start'
/opt/rh/ruby200/root/usr/share/gems/gems/thin-1.3.1/lib/thin/server.rb:159:in `start'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/handler/thin.rb:13:in `run'
/opt/rh/cfme-gemset/gems/rack-1.4.5/lib/rack/server.rb:268:in `start'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/commands/server.rb:70:in `start'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/commands.rb:55:in `block in <top (required)>'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/commands.rb:50:in `tap'
/opt/rh/cfme-gemset/bundler/gems/rails-8f014fba21f9/railties/lib/rails/commands.rb:50:in `<top (required)>'
script/rails:6:in `require'
script/rails:6:in `<main>'