新的rails用户在这里。
我有一个rails项目，我想接受一个控制器和一个动作，但没有参数。此时，（默认）脚手架创建的控制器在我输入没有参数的动作时返回'show'命令，除非它是“新”动作。如果我将一个def添加到category_controller.rb文件并尝试访问该URL，我会得到一个“找不到ID = testaction的类别”。我缺少什么想法？
以下可能相关的代码。
非常感谢
输入的网址：http://0.0.0.0:3000/categories/testaction
# app/controllers/categories_controller.rb
class CategoriesController < ApplicationController
# GET /categories
# GET /categories.xml
def index
@categories = Category.all
respond_to do |format|
format.html # index.html.erb
format.xml { render :xml => @categories }
end
end
# GET /categories/1
# GET /categories/1.xml
def testaction
@category = Category.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => @category }
end
end
# GET /categories/1
# GET /categories/1.xml
def show
@category = Category.find(params[:id])
respond_to do |format|
format.html # show.html.erb
format.xml { render :xml => @category }
end
end
# GET /categories/new
# GET /categories/new.xml
def new
@category = Category.new
respond_to do |format|
format.html # new.html.erb
format.xml { render :xml => @category }
end
end
# GET /categories/1/edit
def edit
@category = Category.find(params[:id])
end
# POST /categories
# POST /categories.xml
def create
@category = Category.new(params[:category])
respond_to do |format|
if @category.save
format.html { redirect_to(@category, :notice => 'Category was successfully created.') }
format.xml { render :xml => @category, :status => :created, :location => @category }
else
format.html { render :action => "new" }
format.xml { render :xml => @category.errors, :status => :unprocessable_entity }
end
end
end
# PUT /categories/1
# PUT /categories/1.xml
def update
@category = Category.find(params[:id])
respond_to do |format|
if @category.update_attributes(params[:category])
format.html { redirect_to(@category, :notice => 'Category was successfully updated.') }
format.xml { head :ok }
else
format.html { render :action => "edit" }
format.xml { render :xml => @category.errors, :status => :unprocessable_entity }
end
end
end
# DELETE /categories/1
# DELETE /categories/1.xml
def destroy
@category = Category.find(params[:id])
@category.destroy
respond_to do |format|
format.html { redirect_to(categories_url) }
format.xml { head :ok }
end
end
end
# Routes.rb
ActionController::Routing::Routes.draw do |map|
map.resources :categories
# The priority is based upon order of creation: first created -> highest priority.
# Sample of regular route:
# map.connect 'products/:id', :controller => 'catalog', :action => 'view'
# Keep in mind you can assign values other than :controller and :action
# Sample of named route:
# map.purchase 'products/:id/purchase', :controller => 'catalog', :action => 'purchase'
# This route can be invoked with purchase_url(:id => product.id)
# Sample resource route (maps HTTP verbs to controller actions automatically):
# map.resources :products
# Sample resource route with options:
# map.resources :products, :member => { :short => :get, :toggle => :post }, :collection => { :sold => :get }
# Sample resource route with sub-resources:
# map.resources :products, :has_many => [ :comments, :sales ], :has_one => :seller
# Sample resource route with more complex sub-resources
# map.resources :products do |products|
# products.resources :comments
# products.resources :sales, :collection => { :recent => :get }
# end
# Sample resource route within a namespace:
# map.namespace :admin do |admin|
# # Directs /admin/products/* to Admin::ProductsController (app/controllers/admin/products_controller.rb)
# admin.resources :products
# end
# You can have the root of your site routed with map.root -- just remember to delete public/index.html.
# map.root :controller => "welcome"
# See how all your routes lay out with "rake routes"
# Install the default routes as the lowest priority.
# Note: These default routes make all actions in every controller accessible via GET requests. You should
# consider removing or commenting them out if you're using named routes and resources.
map.connect ':controller/:action/:id'
map.connect ':controller/:actoin'
map.connect ':controller/:action/:id.:format'
end
# Error Message
ActiveRecord::RecordNotFound in CategoriesController#show
Couldn't find Category with ID=testaction
RAILS_ROOT: /home/john/Websites/sandbox/testnoparams
Application Trace | Framework Trace | Full Trace
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:1616:in `find_one'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:1599:in `find_from_ids'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:619:in `find'
/home/john/Websites/sandbox/testnoparams/app/controllers/categories_controller.rb:28:in `show'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:1331:in `send'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:1331:in `perform_action_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/filters.rb:617:in `call_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/var/lib/gems/1.8/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/var/lib/gems/1.8/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/rescue.rb:160:in `perform_action_without_flash'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/flash.rb:151:in `perform_action'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:532:in `send'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:532:in `process_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/filters.rb:606:in `process'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:391:in `process'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:386:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/routing/route_set.rb:438:in `call'
/usr/lib/ruby/1.8/benchmark.rb:308:in `realtime'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:87:in `dispatch'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:121:in `_call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:130
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:114:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:108:in `call'
/home/john/.gem/ruby/1.8/gems/rails-2.3.8/lib/rails/rack/static.rb:31:in `call'
/home/john/.gem/ruby/1.8/gems/rails-2.3.8/lib/rails/rack/log_tailer.rb:17:in `call'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run'
/home/john/.gem/ruby/1.8/gems/rails-2.3.8/lib/commands/server.rb:111
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
script/server:3
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:1616:in `find_one'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:1599:in `find_from_ids'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/base.rb:619:in `find'
/home/john/Websites/sandbox/testnoparams/app/controllers/categories_controller.rb:28:in `show'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:1331:in `send'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:1331:in `perform_action_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/filters.rb:617:in `call_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/var/lib/gems/1.8/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/usr/lib/ruby/1.8/benchmark.rb:308:in `realtime'
/var/lib/gems/1.8/gems/activesupport-2.3.8/lib/active_support/core_ext/benchmark.rb:17:in `ms'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/rescue.rb:160:in `perform_action_without_flash'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/flash.rb:151:in `perform_action'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:532:in `send'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:532:in `process_without_filters'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/filters.rb:606:in `process'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:391:in `process'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/base.rb:386:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/routing/route_set.rb:438:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:87:in `dispatch'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:121:in `_call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:130
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:29:in `call'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:29:in `call'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:9:in `cache'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:28:in `call'
/var/lib/gems/1.8/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/string_coercion.rb:25:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/head.rb:9:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/methodoverride.rb:24:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/params_parser.rb:15:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/session/cookie_store.rb:99:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/failsafe.rb:26:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/lock.rb:11:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/lock.rb:11:in `synchronize'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/lock.rb:11:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:114:in `call'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/reloader.rb:34:in `run'
/var/lib/gems/1.8/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:108:in `call'
/home/john/.gem/ruby/1.8/gems/rails-2.3.8/lib/rails/rack/static.rb:31:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/urlmap.rb:47:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/urlmap.rb:41:in `each'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/urlmap.rb:41:in `call'
/home/john/.gem/ruby/1.8/gems/rails-2.3.8/lib/rails/rack/log_tailer.rb:17:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/content_length.rb:13:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/chunked.rb:15:in `call'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb:67:in `process'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:159:in `process_client'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `each'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:158:in `process_client'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `initialize'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `new'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:285:in `run'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `initialize'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `new'
/home/john/.gem/ruby/1.8/gems/mongrel-1.1.5/lib/mongrel.rb:268:in `run'
/var/lib/gems/1.8/gems/rack-1.1.0/lib/rack/handler/mongrel.rb:38:in `run'
/home/john/.gem/ruby/1.8/gems/rails-2.3.8/lib/commands/server.rb:111
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
script/server:3
Request
Parameters:
{"id"=>"testaction"}
Show session dump
---
Response
Headers:
{"Content-Type"=>"",
"Cache-Control"=>"no-cache"}
答案 0 :(得分：2)
您的默认路线中存在拼写错误，我通常会将其删除：）
map.connect ':controller/:actoin'
应该是
map.connect ':controller/:action'
明确允许操作起作用：
map.resources :categories, :collection => {:testaction => [:get, :post]}
[：get，：post]应该替换为拉取网址的首选方法。它可以是一系列选项或单数符号。
参考：http://api.rubyonrails.org/classes/ActionController/Resources.html