路由问题一对一关联

我尝试使用我的2个模型pimp和mepager（一对一关系）路由如下：

/config/routes.rb

root :to => 'pimps#index'
get '/:pimp_id/mepager', :to => 'mepager#show', :as => 'mepager'

我的mepager show动作看起来像这样：

/app/controllers/mepagers_controller.rb

before_action :set_pimp    

def show
    @mepager = @pimp.mepager
end

private
def set_pimp
    @pimp = Pimp.find(params[:pimp_id])
end

现在我在rails控制台中测试了函数Pimp.first.mepager应该等于@ pimp.mepager，它给了我正确的mepager对象和所有atttributes . 但是，如果我尝试在我的webapplication中打开'/：pimp_id / mepager'（现有的pimp与mepager相关联）我得到以下错误

Routing Error
  uninitialized constant MepagerController

我错过了什么？

问候 .

完整错误消息：

开始GET“/ 1 / mepager”for 127.0.0.1 at 2014-06-06 08:55:20 0200 ActionController :: RoutingError（uninitialized constant MepagerController）：activesupport（4.0.0）lib / active_support / inflector / methods.rb ：226：在const_get'activesupport（4.0.0）lib / active_support / inflector / methods.rb：226：在constantize中的块'activesupport（4.0.0）lib / active_support / inflector / methods.rb：224：in each' activesupport（4.0.0）lib / active_support / inflector / methods.rb：224：ininject'activesupport（4.0.0）lib / active_support / inflector / methods.rb：224：in constantize'actionpack（4.0.0）lib / action_dispatch /routing/route_set.rb:76:incontroller_reference'actionpack(4.0.0)lib/action_dispatch / routing / route_set.rb:66:in controller'actionpack（4.0.0）lib / action_dispatch / routing / route_set.rb:44： incall'actionpack（4.0.0）lib / action_dispatch / journey / router.rb：71：在调用块'actionpack（4.0.0）lib / action_dispatch / journey / router.rb：59：ineach'actionpack（4.0.0） ）lib / action_dispatch / journey / router.rb：59：in call' actionpack（4.0.0）lib / action_dispatch / routing / route_set.rb:655：在调用'rack（1.5.2）lib / rack / etag.rb:23：在call'rack（1.5.2）lib / rack / conditionalget.rb:25:incall' rack（1.5.2）lib / rack / head.rb：11：在调用'actionpack（4.0.0）lib / action_dispatch / middleware / params_parser.rb：27：incall'actionpack（4.0 .0）lib / action_dispatch / middleware / flash.rb:241：在调用'rack（1.5.2）lib / rack / session / abstract / id.rb：225：incontext' rack（1.5.2）lib / rack / session / abstract / id.rb：220：在调用'actionpack（4.0.0）lib / action_dispatch / middleware / cookies.rb：486：在调用'activerecord（4.0.0）lib / active_record / query_cache.rb：36：在调用'activerecord（4.0.0）lib / active_record / connection_adapters / abstract / connection_pool.rb：626：在cal l'activerecord（4.0.0）lib / active_record / migration.rb：369：在调用'actionpack（4.0 . 0）lib / action_dispatch / middleware / callbacks.rb：29：inblock in call'activesupport（4.0.0）lib / active_support / callbacks.rb：373：in _run__226962734__call__callbacks'activesupport（4.0.0）lib / active_support /callbacks.rb:80:inrun_callbacks'actionpack(4.0.0)lib / action_dispatch / middleware / callbacks.rb:27:in call'actionpack（4.0.0）lib / action_dispatch / middleware / reloader.rb:64:in call 'actionpack（4.0.0）lib / action_dispatch / middleware / remote_ip.rb:76：在调用'actionpack（4.0.0）lib / action_dispatch / middleware / debug_exceptions.rb：17：在调用'actionpack（4.0.0）lib中/action_dispatch/middleware/show_exceptions.rb:30：调用'railties（4.0.0）lib / rails / rack / logger.rb：38：incall_app'railties（4.0.0）lib / rails / rack / logger.rb： 21：在调用块中'activesupport（4.0.0）lib / active_support / tagged_logging.rb：67：inblock in tagged'activesupport（4.0.0）lib / active_support / tagged_logging.rb:25：in tagged'activesupport（4.0 . 0）lib / active_support / tagged_logging.rb：67：凹进'railties（4.0.0）lib / rails / rack / logger.rb：21：在调用'actionpack（4.0.0）lib / action_dispatch / middleware / request_id.rb ：21：incall' rack（1.5.2）lib / rack / methodoverride.rb:21:in call' rack（1.5.2）lib / rack / runtime.rb:17:incall'activesu pport（4.0.0）lib / active_support / cache / strategy / local_cache.rb：83：在调用'rack（1.5.2）lib / rack / lock.rb:17:incall'actionpack(4.0.0)lib / action_dispatch /middleware/static.rb:64:in调用'railties（4.0.0）lib / rails / engine.rb：511：incall'railties（4.0.0）lib / rails / application.rb：97：in call'rack （1.5.2）lib / rack / lock.rb:17:incall' rack（1.5.2）lib / rack / content_length.rb:14:in call' rack（1.5.2）lib / rack / handler / webrick . rb：60：inservice'C：/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/httpserver.rb:138:in service'C：/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1 /webrick/httpserver.rb:94:in运行'C：/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/server.rb:191：在`block in start_thread'中呈现C：/ RailsInstaller / Ruby1 .9.3 / lib / ruby / gems / 1.9.1 / gems / actionpack-4.0.0 / lib / action_dispatch /middleware/templates/rescues/_trace.erb(1.0ms）呈现C：/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/actionpack-4.0.0/lib/action_dispatch /middleware/templates/routes/_route.html.erb(1.0ms）渲染C：/ RailsInstaller / Ruby1.9.3 / lib / ruby / gems / 1.9.1 / gems / actionpack-4.0.0 / lib / action_dispatch /middleware/templates/routes/_table.html.erb(1.0ms）呈现C：/ RailsInstaller / Ruby1救援/布局中的.9.3 / lib / ruby / gems / 1.9.1 / gems / actionpack-4.0.0 / lib / action_dispatch /middleware/templates/rescues/routing_error.erb(42.0ms）

控制台测试

> irb(main):001:0> Pimp.first.mepager   ←[1m←[36mSQL (0.0ms)←[0m 
> ←[1mUSE [rails_confreport_develop]←[0m   ←[1m←[35mPimp Load
> (1.0ms)←[0m  EXEC sp_executesql N'SELECT TOP (1) [pimps].* Y
> [pimps].[id] ASC'   ←[1m←[36mMepager Load (1.0ms)←[0m  ←[1mEXEC
> sp_executesql N'SELECT TOP (1) [me gers] WHERE [mepagers].[pimp_id] =
> @0 ORDER BY [mepagers].[id] ASC', N'@0 int', id", 2]]
> => #<Mepager id: 2, pimp_id: 2, pre: "geqgewqrgq", post: "egewqewqgewqgewq", com .0, save_c: nil, save_other: "", save_otherv:
> nil, affect_design: "", affect_str "", affect_other: "", affect_dno:
> "", affect_mid: "", affect_otherdoc: "", owner ence: "", created_at:
> "2014-06-06 06:36:44", updated_at: "2014-06-06 06:36:44">

mepagers_controller.rb

class MepagersController < ApplicationController
  before_action :set_mepager, only: [:show, :edit, :update, :destroy]
  before_action :set_pimp

  # GET /mepagers
  # GET /mepagers.json
  #def index
    #@mepagers = Mepager.all
  #end

  # GET /mepagers/1
  # GET /mepagers/1.json
  def show
    @mepager = @pimp.mepager
  end

  # GET /mepagers/new
  def new
    @mepager = @pimp.build_mepager
  end

  # GET /mepagers/1/edit
  def edit
    @mepager = @pimp.mepager
  end

  # POST /mepagers
  # POST /mepagers.json
  def create
    @mepager = @pimp.build_mepager(mepager_params)

    respond_to do |format|
      if @mepager.save
        format.html { redirect_to [@pimp,@mepager], notice: 'Mepager was successfully created.' }
        format.json { render action: 'show', status: :created, location: @mepager }
      else
        format.html { render action: 'new' }
        format.json { render json: @mepager.errors, status: :unprocessable_entity }
      end
    end
  end

  # PATCH/PUT /mepagers/1
  # PATCH/PUT /mepagers/1.json
  def update
    @mepager = @pimp.mepager
    respond_to do |format|
      if @mepager.update(mepager_params)
        format.html { redirect_to [@pimp,@mepager], notice: 'Mepager was successfully updated.' }
        format.json { head :no_content }
      else
        format.html { render action: 'edit' }
        format.json { render json: @mepager.errors, status: :unprocessable_entity }
      end
    end
  end

  # DELETE /mepagers/1
  # DELETE /mepagers/1.json
  def destroy
    @mepager = @pimp.mepager
    @mepager.destroy
    respond_to do |format|
      format.html { redirect_to mepagers_url }
      format.json { head :no_content }
    end
  end

  private
    # Use callbacks to share common setup or constraints between actions.
    def set_mepager
      @mepager = Mepager.find(params[:id])
    end

    def set_pimp
      @pimp = Pimp.find(params[:pimp_id])
    end

    # Never trust parameters from the scary internet, only allow the white list through.
    def mepager_params
      params.require(:mepager).permit(:pimp_id, :pre, :post, :comment, :save_h, :save_c, :save_other, :save_otherv, :affect_design, :affect_stress, :affect_me, :affect_other, :affect_dno, :affect_mid, :affect_otherdoc, :owner, :pps, :reference)
    end
end