引發ArgumentError在ImagesController＃索引，但appliaction跟蹤是空的

Question

我打電話一類提供了以下錯誤索引操作：

Started GET "/images" for 127.0.0.1 at Sun Aug 28 06:14:41 +0200 2011 Processing by ImagesController#index as HTML Completed 500 Internal Server Error in 1ms

ArgumentError (wrong number of arguments (2 for 0)):

沒有什麼應用程序中的痕跡，這意味着故障發生前的任何時我爲應用創建的文件被處理。完整的跟蹤是在這裏：

activesupport (3.0.8) lib/active_support/callbacks.rb:97:in `send' 
activesupport (3.0.8) lib/active_support/callbacks.rb:97:in `run_callbacks' 
actionpack (3.0.8) lib/abstract_controller/callbacks.rb:17:in `process_action' 
actionpack (3.0.8) lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
activesupport (3.0.8) lib/active_support/notifications.rb:52:in `instrument' 
activesupport (3.0.8) lib/active_support/notifications/instrumenter.rb:21:in `instrument' 
activesupport (3.0.8) lib/active_support/notifications.rb:52:in `instrument' 
actionpack (3.0.8) lib/action_controller/metal/instrumentation.rb:29:in `process_action' 
actionpack (3.0.8) lib/action_controller/metal/rescue.rb:17:in `process_action' 
actionpack (3.0.8) lib/abstract_controller/base.rb:119:in `process' 
actionpack (3.0.8) lib/abstract_controller/rendering.rb:41:in `process' 
actionpack (3.0.8) lib/action_controller/metal.rb:138:in `dispatch' 
actionpack (3.0.8) lib/action_controller/metal/rack_delegation.rb:14:in `dispatch' 
actionpack (3.0.8) lib/action_controller/metal.rb:178:in `action' 
actionpack (3.0.8) lib/action_dispatch/routing/route_set.rb:62:in `call' 
actionpack (3.0.8) lib/action_dispatch/routing/route_set.rb:62:in `dispatch' 
actionpack (3.0.8) lib/action_dispatch/routing/route_set.rb:27:in `call' 
rack-mount (0.6.14) lib/rack/mount/route_set.rb:148:in `call' 
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:93:in `recognize' 
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:82:in `optimized_each' 
rack-mount (0.6.14) lib/rack/mount/code_generation.rb:92:in `recognize' 
rack-mount (0.6.14) lib/rack/mount/route_set.rb:139:in `call' 
actionpack (3.0.8) lib/action_dispatch/routing/route_set.rb:493:in `call' 
sass (3.1.7) lib/sass/./sass/plugin/rack.rb:54:in `call' 
warden (1.0.5) lib/warden/manager.rb:35:in `call' 
warden (1.0.5) lib/warden/manager.rb:34:in `catch' 
warden (1.0.5) lib/warden/manager.rb:34:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/best_standards_support.rb:17:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/head.rb:14:in `call' 
rack (1.2.3) lib/rack/methodoverride.rb:24:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/params_parser.rb:21:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/flash.rb:182:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/session/abstract_store.rb:149:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/cookies.rb:302:in `call' 
activerecord (3.0.8) lib/active_record/query_cache.rb:32:in `call' 
activerecord (3.0.8) lib/active_record/connection_adapters/abstract/query_cache.rb:28:in `cache' 
activerecord (3.0.8) lib/active_record/query_cache.rb:12:in `cache' 
activerecord (3.0.8) lib/active_record/query_cache.rb:31:in `call' 
activerecord (3.0.8) lib/active_record/connection_adapters/abstract/connection_pool.rb:354:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/callbacks.rb:46:in `call' 
activesupport (3.0.8) lib/active_support/callbacks.rb:419:in `_run_call_callbacks' 
actionpack (3.0.8) lib/action_dispatch/middleware/callbacks.rb:44:in `call' 
rack (1.2.3) lib/rack/sendfile.rb:107:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/remote_ip.rb:48:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/show_exceptions.rb:47:in `call' 
railties (3.0.8) lib/rails/rack/logger.rb:13:in `call' 
rack (1.2.3) lib/rack/runtime.rb:17:in `call' 
activesupport (3.0.8) lib/active_support/cache/strategy/local_cache.rb:72:in `call' 
rack (1.2.3) lib/rack/lock.rb:11:in `call' 
rack (1.2.3) lib/rack/lock.rb:11:in `synchronize' 
rack (1.2.3) lib/rack/lock.rb:11:in `call' 
actionpack (3.0.8) lib/action_dispatch/middleware/static.rb:30:in `call' 
railties (3.0.8) lib/rails/application.rb:168:in `call' 
railties (3.0.8) lib/rails/application.rb:77:in `send' 
railties (3.0.8) lib/rails/application.rb:77:in `method_missing' 
railties (3.0.8) lib/rails/rack/log_tailer.rb:14:in `call' 
rack (1.2.3) lib/rack/content_length.rb:13:in `call' 
rack (1.2.3) lib/rack/handler/webrick.rb:52:in `service' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/httpserver.rb:104:in `service' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/httpserver.rb:65:in `run' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:173:in `start_thread' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:162:in `start' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:162:in `start_thread' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:95:in `start' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:92:in `each' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:92:in `start' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:23:in `start' 
/home/jon/.rvm/rubies/ruby-1.8.7-p334/lib/ruby/1.8/webrick/server.rb:82:in `start' 
rack (1.2.3) lib/rack/handler/webrick.rb:13:in `run' 
rack (1.2.3) lib/rack/server.rb:217:in `start' 
railties (3.0.8) lib/rails/commands/server.rb:65:in `start' 
railties (3.0.8) lib/rails/commands.rb:30 
railties (3.0.8) lib/rails/commands.rb:27:in `tap' 
railties (3.0.8) lib/rails/commands.rb:27 
script/rails:6:in `require' 
script/rails:6 

這裏是LIB/active_support/callbacks.rb相關的代碼，我修改了打印出來的方法參數

def run_callbacks(kind, *args, &block) 
    p *args 
    p &block 
    p kind 
    send("_run_#{kind}_callbacks", *args, &block) 
end 

這裏是與上面的輸出代碼：

"callback arguments" 
:checkout 
"callback arguments" 
"index" 
:process_action 

Started GET "/images" for 127.0.0.1 at Sun Aug 28 06:40:37 +0200 2011 
Processing by ImagesController#index as HTML Completed 500 Internal 
Server Error in 1ms 

ArgumentError (wrong number of arguments (2 for 0)): 


Rendered 
/home/jon/.rvm/gems/ruby-1.8.7-p334/gems/actionpack-3.0.8/lib/action_dispatch/middleware/templates/rescues/_trace.erb 
(1.5ms) Rendered 
/home/jon/.rvm/gems/ruby-1.8.7-p334/gems/actionpack-3.0.8/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb 
(8.6ms) Rendered 
/home/jon/.rvm/gems/ruby-1.8.7-p334/gems/actionpack-3.0.8/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb 
within rescues/layout (20.9ms) 

這裏是DB模式：

create_table "images", :force => true do |t| 
    t.string "photo" 
    t.integer "w" 
    t.integer "h" 
    t.integer "eyes" 
    t.integer "head_top" 
    t.integer "head_bottom" 
    t.integer "user_id" 
    t.string "face_params", :limit => 2000 
    t.string "smiling" 
    t.string "facing" 
    t.string "filename" 
    t.string "content_type" 
    t.binary "data",   :limit => 16777215 
    t.datetime "created_at" 
    t.datetime "updated_at" 
end 

下面是相關的控制器代碼：

def index 
    p "made it to index action--------------------------" 
    if user_signed_in? 
    @user = current_user 
    @selected_image = @user.get_selected_image 
    @problems = @selected_image ? @selected_image.problems.all : Array.new 
    @images = @user.images - Array[@selected_image] 
    @image = @user.image_build 

    respond_to do |format| 
     format.html # index.html.erb 
     format.xml { render :xml => @images } 
    end 
    else 
    redirect_to root_path 
    end 
end 

所有其他控制器似乎工作。此控制器的其他操作會導致相同的錯誤。

任何想法？

編輯：新增的routes.rb按下面的評論

Id::Application.routes.draw do 
    resources :payment_notifications 
    resources :addresses 

    resources :orders do 
    member do 
     get "select_address_for" 
     put "set_address_for" 
     get "complete" 
    end 
    end 

    resources :prints do 
    member do 
     post "email" 
     get "confirm_email" 
    end 
    end 

    resources :images do 
    member do 
     put "select" 
     get "thumb" 
     get "send" 
    end 
    end 

    resources :docs do 
    member do 
     get "image_for" 
    end 
    end 

    devise_for :users 

    ##This will redirect the user after sign-in or sign-up. 
    ##Otherwise is will default to the 'root' route, defined below 
    #devise_for :users do 
    # get 'users', :to => 'docs#index', :as => :user_root # Rails 3 
    #end 

    resources :admins 
    resources :assistants 
    resources :books 
    resources :links 
    resources :categories 
    resources :tips 
    resources :rules 
    resources :countries 
    resources :types 
    resources :continents 

    # match ':controller(/:action(/:id(.:format)))' 
    # match ':controller/:action/:id' 
    # match ':controller/:action/:id.:format' 
    # match ':controller/:action.:format' 
end 

Answer 1

你重新定義你的images控制器，這是一個基礎的Ruby方法send方法。將它重命名爲其他內容，並且問題應該消失。