Forum: Rails-ES errores con el scaffold

No se que pasa pero me da problemas mi controlador y solo tengo
escritolo siguiente
class PlayersController < ApplicationController
  scaffold:player
end
El error que me sale es el siguiente alguien me puede ayudar
 NoMethodError in PlayersController#index

undefined method `scaffold' for PlayersController:Class

RAILS_ROOT: C:/Instant/rails_apps/players
Application Trace | Framework Trace | Full Trace

C:/Instant/rails_apps/players/app/controllers/players_controller.rb:2

C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in
`load_without_new_constant_marking'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in
`load_file'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in
`new_constants_in'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:379:in
`load_file'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:259:in
`require_or_load'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:425:in
`load_missing_constant'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in
`const_missing'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:92:in
`const_missing'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:361:in
`constantize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in
`each'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in
`constantize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/string/inflections.rb:162:in
`constantize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:443:in
`recognize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:436:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:87:in
`dispatch'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in
`_call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in
`build_middleware_stack'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in
`cache'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in
`cache'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/cookie_store.rb:93:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`synchronize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/cgi_process.rb:44:in
`dispatch_cgi'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:101:in
`dispatch_cgi'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:27:in
`dispatch'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:76:in
`process'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:in
`synchronize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:in
`process'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:159:in
`process_client'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
`each'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
`process_client'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`initialize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`new'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`initialize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`new'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:282:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:in
`each'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:128:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/command.rb:212:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:281
C:/Instant/ruby/bin/mongrel_rails:19:in `load'
C:/Instant/ruby/bin/mongrel_rails:19

C:/Instant/rails_apps/players/app/controllers/players_controller.rb:2
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in
`load_without_new_constant_marking'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:380:in
`load_file'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:in
`new_constants_in'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:379:in
`load_file'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:259:in
`require_or_load'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:425:in
`load_missing_constant'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:80:in
`const_missing'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:92:in
`const_missing'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:361:in
`constantize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in
`each'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/inflector.rb:360:in
`constantize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/string/inflections.rb:162:in
`constantize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:443:in
`recognize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/routing/route_set.rb:436:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:87:in
`dispatch'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:121:in
`_call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:130:in
`build_middleware_stack'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:29:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in
`cache'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:9:in
`cache'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/query_cache.rb:28:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/string_coercion.rb:25:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/head.rb:9:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/methodoverride.rb:24:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/params_parser.rb:15:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/session/cookie_store.rb:93:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/failsafe.rb:26:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`synchronize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/lock.rb:11:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:114:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/reloader.rb:34:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:108:in
`call'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/cgi_process.rb:44:in
`dispatch_cgi'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:101:in
`dispatch_cgi'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:27:in
`dispatch'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:76:in
`process'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:in
`synchronize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/rails.rb:74:in
`process'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:159:in
`process_client'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
`each'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:158:in
`process_client'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`initialize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`new'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:285:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`initialize'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`new'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel.rb:268:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:282:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:in
`each'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/configurator.rb:281:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:128:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/lib/mongrel/command.rb:212:in
`run'
C:/Instant/ruby/lib/ruby/gems/1.8/gems/mongrel-1.1.5-x86-mswin32-60/bin/mongrel_rails:281
C:/Instant/ruby/bin/mongrel_rails:19:in `load'
C:/Instant/ruby/bin/mongrel_rails:19

Request

Parameters:

None

Show session dump

---

Response

Headers:

{"Content-Type"=>"",
 "Cache-Control"=>"no-cache"}

Hola que tal,


Lo que esta pasando es que despues de las versiones 2 la forma de 
utilizar el scaffold cambia a ser un script por lo que para generar un 
scaffold utilizas las instruccion => script/generate scaffold TuModelo 
Campo1:string campo2:integer campo3:text campo4:boolean.

despues de dar esta instruccion rails generara el modelo, las 
migraciones, el controlador, la vista, los helpers, etc. y para 
funcionar simplemente das

rake db:create
rake db:migrate

y ya con esto puedes probar las operaciones CRUD que genero el Scaffold.

Saludos,

Cristian Vasquez
Medellin-Colombia