Google Chrome浏览器 - 防止在Rails应用程序刷新时重新提交表单

Question

我是Rails3的新手，并且构建了非常简单的应用程序（我不想要AJAX）。无论如何，我有index和create的行动。该index动作包含窗体：

<%= form_for @message, url: promote_index_path do |f| %> 
... 
<% end %> 

我promote_controller看起来是这样的：

def index 
    @message = Message.new url: @last_video, message_body: @last_message 
    end 

    def create 
    @message = current_user.messages.new(params[:message]) 
    @message.get_video_id 
    if @message.save 
     redirect_to promote_index_url, flash: {notice: "Promotion has been started"} 
    else 
     render 'index' 
    end 
    end 

这一切工作正常，除了当表单提交成功，并通知闪烁时，如果用户点击F5时，对表单重新提交。这不应该是这样，因为我在成功保存后正在做redirect_to。我相信我在这里做着根本性的错误，所以请帮助我。

编辑： 这里是我的routes.rb

resources :home 
    resources :find 
    resources :promote 
    resources :settings 
    root to: 'home#index' 
    match 'auth/:provider/callback', to: 'sessions#create' 
    match 'auth/failure', to: redirect('/') 
    match 'logout', to: 'sessions#destroy', as: 'logout' 
    match 'find', to: 'find#index', as: 'find' 
    match 'promote', to: 'promote#index', as: 'promote' 
    match 'settings', to: 'settings#index', as: 'settings' 

这里是我的rake routes

Jans-MacBook-Pro-2:tp3 jan$ rake routes 
settings_index GET /settings/index(.:format)   settings#index 
    home_index GET /home(.:format)     home#index 
       POST /home(.:format)     home#create 
     new_home GET /home/new(.:format)    home#new 
    edit_home GET /home/:id/edit(.:format)   home#edit 
      home GET /home/:id(.:format)    home#show 
       PUT /home/:id(.:format)    home#update 
       DELETE /home/:id(.:format)    home#destroy 
    find_index GET /find(.:format)     find#index 
       POST /find(.:format)     find#create 
     new_find GET /find/new(.:format)    find#new 
    edit_find GET /find/:id/edit(.:format)   find#edit 
      find GET /find/:id(.:format)    find#show 
       PUT /find/:id(.:format)    find#update 
       DELETE /find/:id(.:format)    find#destroy 
promote_index GET /promote(.:format)     promote#index 
       POST /promote(.:format)     promote#create 
    new_promote GET /promote/new(.:format)    promote#new 
    edit_promote GET /promote/:id/edit(.:format)  promote#edit 
     promote GET /promote/:id(.:format)    promote#show 
       PUT /promote/:id(.:format)    promote#update 
       DELETE /promote/:id(.:format)    promote#destroy 
     settings GET /settings(.:format)    settings#index 
       POST /settings(.:format)    settings#create 
    new_setting GET /settings/new(.:format)   settings#new 
    edit_setting GET /settings/:id/edit(.:format)  settings#edit 
     setting GET /settings/:id(.:format)   settings#show 
       PUT /settings/:id(.:format)   settings#update 
       DELETE /settings/:id(.:format)   settings#destroy 
      root  /        home#index 
         /auth/:provider/callback(.:format) sessions#create 
    auth_failure  /auth/failure(.:format)   :controller#:action 
     logout  /logout(.:format)     sessions#destroy 
      find  /find(.:format)     find#index 
     promote  /promote(.:format)     promote#index 
     settings  /settings(.:format)    settings#index 

编辑：这个问题似乎是在谷歌浏览器。

Answer 1

我有同样的问题，并最终跟踪它到一个bug在Chrome（https://code.google.com/p/chromium/issues/detail?id=177855）

我周围的工作中使用的只是添加一些获取参数。以下是我处理错误和挫折的方式。结果可能不适用于所有情况。幸运的是我的应用是内部的。

def create 
    @message = current_user.messages.new(params[:message]) 
    @message.get_video_id 
    if @message.save 
    flash[:notice] = "Promotion has been started" 
    redirect_to promote_index_url(chrome_bug_workaround: 177855) 
    else 
    render 'index' 
    end 
end 

另一种方法是创建一个基本上是索引别名的集合路由。

在routes.rb：

match 'promote/all' => 'promote#index', :as => 'all_promotions' 

在promote_controller.rb：

def create 
    @message = current_user.messages.new(params[:message]) 
    @message.get_video_id 
    if @message.save 
    redirect_to all_promotions_url, flash: {notice: "Promotion has been started"} 
    else 
    render 'index' 
    end 
end 

顺便说一句，你find，promote和settings比赛路线似乎是多余的与资源路线指标的行动。

Answer 2

试着改变你的方法是：

def index 
    @message = Message.new url: @last_video, message_body: @last_message 

    respond_to do |format| 
     format.html 
    end 
    end 

    def create 
    @message = current_user.messages.new(params[:message]) 
    @message.get_video_id 

    respond_to do |format| 
     if @message.save 
     format.html {redirect_to promote_index_url, notice: "Promotion has been started"} 
     else 
     render 'index' 
     end 
    end 
    end