im working with active admin i have collection_select or dropdown box that populates the packages and crews im just wondering i why this undefined method `[]'' for nil:NilClass` i dont know what happened but it run few days ago and tested it once but now it raises this error are there possible way to solve this? def create @package = Package.find(params[:package_crew][:package_id]) crew = Crew.find(params[:package_crew][:crew_id] ) @package_crew = @package.add_crew(crew.id) if @package_crew.save redirect_to {admin_package_crew_url} end end thanks in advance more power to us all i tried this def create #pid = params[:package_crew][:crew_id] if params[:package_crew] pid,cid = 2 #tried nil,0..10 if params[:package_crew] pid = params[:package_crew][:package_id] cid = params[:package_crew][:crew_id] end @package = Package.find_by_id(pid) crew = Crew.find_by_id(cid) #@package = Package.find(params[:package_crew][:package_id]) #crew = Crew.find(params[:package_crew][:crew_id] ) @package_crew = @package.add_crew(crew.id) if @package_crew.save redirect_to {admin_package_crew_url} end end add_crew method def add_crew(crew_id) current_package = package_crews.find_by_crew_id(crew_id) if current_package current_package.quantity = current_package.quantity.to_i + 1 else current_package = package_crews.build(:crew_id => crew_id) current_package.price = current_package.crew.price end current_package end moving parameters {"utf8"=>"✓", "authenticity_token"=>"n4WZpQpES6mnSO12oGKV/MeoxAVvV9OmJQKfhcpnvQM=", "crew_for_package"=>{"package_id"=>"1", "crew_id"=>"1", "quantity"=>"1"}, "commit"=>"Create Package crew"} stack error app/admin/package_crews.rb:35:in `create'' actionpack (3.2.1) lib/action_controller/metal/implicit_render.rb:4:in `send_action'' actionpack (3.2.1) lib/abstract_controller/base.rb:167:in `process_action'' actionpack (3.2.1) lib/action_controller/metal/rendering.rb:10:in `process_action'' actionpack (3.2.1) lib/abstract_controller/callbacks.rb:18:in `block in process_action'' activesupport (3.2.1) lib/active_support/callbacks.rb:447:in `_run__304549499__process_action__775442107__callbacks'' activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'' activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_process_action_callbacks'' activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'' actionpack (3.2.1) lib/abstract_controller/callbacks.rb:17:in `process_action'' actionpack (3.2.1) lib/action_controller/metal/rescue.rb:29:in `process_action'' actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:30:in `block in process_action'' activesupport (3.2.1) lib/active_support/notifications.rb:123:in `block in instrument'' activesupport (3.2.1) lib/active_support/notifications/instrumenter.rb:20:in `instrument'' activesupport (3.2.1) lib/active_support/notifications.rb:123:in `instrument'' actionpack (3.2.1) lib/action_controller/metal/instrumentation.rb:29:in `process_action'' actionpack (3.2.1) lib/action_controller/metal/params_wrapper.rb:205:in `process_action'' activerecord (3.2.1) lib/active_record/railties/controller_runtime.rb:18:in `process_action'' actionpack (3.2.1) lib/abstract_controller/base.rb:121:in `process'' actionpack (3.2.1) lib/abstract_controller/rendering.rb:45:in `process'' actionpack (3.2.1) lib/action_controller/metal.rb:203:in `dispatch'' actionpack (3.2.1) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch'' actionpack (3.2.1) lib/action_controller/metal.rb:246:in `block in action'' actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `call'' actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:66:in `dispatch'' actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:30:in `call'' journey (1.0.3) lib/journey/router.rb:68:in `block in call'' journey (1.0.3) lib/journey/router.rb:56:in `each'' journey (1.0.3) lib/journey/router.rb:56:in `call'' actionpack (3.2.1) lib/action_dispatch/routing/route_set.rb:589:in `call'' sass (3.1.15) lib/sass/plugin/rack.rb:54:in `call'' warden (1.1.1) lib/warden/manager.rb:35:in `block in call'' warden (1.1.1) lib/warden/manager.rb:34:in `catch'' warden (1.1.1) lib/warden/manager.rb:34:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'' rack (1.4.1) lib/rack/etag.rb:23:in `call'' rack (1.4.1) lib/rack/conditionalget.rb:35:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/head.rb:14:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/params_parser.rb:21:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/flash.rb:242:in `call'' rack (1.4.1) lib/rack/session/abstract/id.rb:205:in `context'' rack (1.4.1) lib/rack/session/abstract/id.rb:200:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/cookies.rb:338:in `call'' activerecord (3.2.1) lib/active_record/query_cache.rb:64:in `call'' activerecord (3.2.1) lib/active_record/connection_adapters/abstract/connection_pool.rb:443:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'' activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `_run__1039351831__call__833288071__callbacks'' activesupport (3.2.1) lib/active_support/callbacks.rb:405:in `__run_callback'' activesupport (3.2.1) lib/active_support/callbacks.rb:385:in `_run_call_callbacks'' activesupport (3.2.1) lib/active_support/callbacks.rb:81:in `run_callbacks'' actionpack (3.2.1) lib/action_dispatch/middleware/callbacks.rb:27:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/reloader.rb:65:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/remote_ip.rb:31:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'' railties (3.2.1) lib/rails/rack/logger.rb:26:in `call_app'' railties (3.2.1) lib/rails/rack/logger.rb:16:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/request_id.rb:22:in `call'' rack (1.4.1) lib/rack/methodoverride.rb:21:in `call'' rack (1.4.1) lib/rack/runtime.rb:17:in `call'' activesupport (3.2.1) lib/active_support/cache/strategy/local_cache.rb:72:in `call'' rack (1.4.1) lib/rack/lock.rb:15:in `call'' actionpack (3.2.1) lib/action_dispatch/middleware/static.rb:53:in `call'' railties (3.2.1) lib/rails/engine.rb:479:in `call'' railties (3.2.1) lib/rails/application.rb:220:in `call'' railties (3.2.1) lib/rails/railtie/configurable.rb:30:in `method_missing'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/rack/application_spawner.rb:206:in `start_request_handler'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/rack/application_spawner.rb:171:in `block in handle_spawn_application'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/utils.rb:479:in `safe_fork'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/rack/application_spawner.rb:166:in `handle_spawn_application'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server.rb:180:in `start'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/rack/application_spawner.rb:129:in `start'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/spawn_manager.rb:253:in `block (2 levels) in spawn_rack_application'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/spawn_manager.rb:246:in `block in spawn_rack_application'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server_collection.rb:82:in `block in synchronize'' <internal:prelude>:10:in `synchronize'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/spawn_manager.rb:244:in `spawn_rack_application'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/spawn_manager.rb:137:in `spawn_application'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'' /home/led/.passenger/standalone/3.0.11-x86-ruby1.9.3-linux-gcc4.6.3-1002/support/helper-scripts/passenger-spawn-server:99:in `<main>'' i dont know if its ok to post a activeadmin problem here sorry if i posted a wrong question just wondering if there is a activeadmin expert here thanks -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. 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On 19 April 2012 18:34, ruby LED <lists-fsXkhYbjdPsEEoCn2XhGlw@public.gmane.org> wrote:> im working with active admin i have collection_select or dropdown box > that populates the packages and crews im just wondering i why this > > undefined method `[]'' for nil:NilClass` > i dont know what happened but it run few days ago and tested it once but > now it raises this error are there possible way to solve this? > > def create > @package = Package.find(params[:package_crew][:package_id]) > crew = Crew.find(params[:package_crew][:crew_id] ) > @package_crew = @package.add_crew(crew.id) > if @package_crew.save > redirect_to {admin_package_crew_url} > end > end > thanks in advance more power to us all > > i tried this > > def create > #pid = params[:package_crew][:crew_id] if params[:package_crew] > pid,cid = 2 #tried nil,0..10 > if params[:package_crew] > pid = params[:package_crew][:package_id] > cid = params[:package_crew][:crew_id] > end > @package = Package.find_by_id(pid) > crew = Crew.find_by_id(cid) > #@package = Package.find(params[:package_crew][:package_id]) > #crew = Crew.find(params[:package_crew][:crew_id] ) > @package_crew = @package.add_crew(crew.id) > if @package_crew.save > redirect_to {admin_package_crew_url} > end > end > > add_crew method > > def add_crew(crew_id) > current_package = package_crews.find_by_crew_id(crew_id) > if current_package > current_package.quantity = current_package.quantity.to_i + 1 > else > current_package = package_crews.build(:crew_id => crew_id) > current_package.price = current_package.crew.price > end > current_package > end > moving parameters > > {"utf8"=>"✓", > "authenticity_token"=>"n4WZpQpES6mnSO12oGKV/MeoxAVvV9OmJQKfhcpnvQM=", > "crew_for_package"=>{"package_id"=>"1", > "crew_id"=>"1", > "quantity"=>"1"}, > "commit"=>"Create Package crew"} > stack error > > app/admin/package_crews.rb:35:in `create''The error says that on line 35 you are calling [] on something that is nil. Please tell us which is line 35, that may make it easier to find the problem. First, however, have a look at the rails guide on debugging to get ideas on how to debug the code and work out what the problem is. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
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