ruby - 重定向到 @timecard 结果为 'no route matches [PATCH] "/timecards"

Question

无法解决这个路由问题:我从我的更新 Controller 操作重定向到修改后的@timecard，并收到以下错误:没有路由匹配 [PATCH] "/timecards"

为什么 Rails 尝试使用 PATCH 重定向到 timecards#index？

这不是我重定向到最近编辑的@timecard 的方式吗？

在timecards_controller.rb中:

  def edit
    @timecard = Timecard.find(params[:id])
  end

  def update
    @timecard = Timecard.find(params[:id])
    @timecard.update_attributes!(timecard_params)
    redirect_to @timecard
  end

rake routes的输出:

$ rake routes
                      Prefix Verb   URI Pattern                                                 Controller#Action
   timecard_timecard_entries GET    /timecards/:timecard_id/timecard_entries(.:format)          timecard_entries#index
                             POST   /timecards/:timecard_id/timecard_entries(.:format)          timecard_entries#create
 new_timecard_timecard_entry GET    /timecards/:timecard_id/timecard_entries/new(.:format)      timecard_entries#new
edit_timecard_timecard_entry GET    /timecards/:timecard_id/timecard_entries/:id/edit(.:format) timecard_entries#edit
     timecard_timecard_entry GET    /timecards/:timecard_id/timecard_entries/:id(.:format)      timecard_entries#show
                             PATCH  /timecards/:timecard_id/timecard_entries/:id(.:format)      timecard_entries#update
                             PUT    /timecards/:timecard_id/timecard_entries/:id(.:format)      timecard_entries#update
                             DELETE /timecards/:timecard_id/timecard_entries/:id(.:format)      timecard_entries#destroy
                   timecards GET    /timecards(.:format)                                        timecards#index
                             POST   /timecards(.:format)                                        timecards#create
                new_timecard GET    /timecards/new(.:format)                                    timecards#new
               edit_timecard GET    /timecards/:id/edit(.:format)                               timecards#edit
                    timecard GET    /timecards/:id(.:format)                                    timecards#show
                             PATCH  /timecards/:id(.:format)                                    timecards#update
                             PUT    /timecards/:id(.:format)                                    timecards#update
                             DELETE /timecards/:id(.:format)                                    timecards#destroy
                        root GET    /                                                           timecards#index

Answer 1

当您调用 redirect_to 时，您应该指定一个路径...不一定是对象本身。

尝试，

def update
  @timecard = Timecard.find(params[:id])
  @timecard.update_attributes!(timecard_params)
  redirect_to timecard_path(@timecard)
end