ruby-on-rails - 在 Rails 中将 Action 关联到 form.select 的 on_change？

Question

以下是我选择聊天室的下拉列表:

<% form_for :chat_room do |form| %>
          <%= form.select(:title, @chat_rooms.collect! {|x| x.title},{:include_blank =>'select a chat room'}) %>
        <% end %>

我的路线是:

ActionController::Routing::Routes.draw do |map|

  map.resource :account, :controller => "users"
  map.resources :poll
  map.resources :users,:has_many => :stories
  map.resources :chat_rooms ,:member => {:create_message => :post},:collection => {:ajax_updater=>:get}
  map.logout 'logout', :controller => 'user_sessions', :action =>'destroy'
  map.resource :user_session
  map.resource  :welcome
  map.connect '/', :controller => 'welcome', :action => 'index'

  map.connect ':controller/:action/:id'
  map.connect ':controller/:action/:id.:format'
end

在更改下拉列表中的值时，我想导航到所选的特定聊天室。我该怎么做？

Answer 1

一种(简单的)方法是将 :onchange 参数添加到选择助手

form.select(:title, @chat_rooms.collect! {|x| [x.title, x.id] },{:include_blank =>'select a chat room'}, :onchange => 'window.location.href = "chat_rooms/" + this.getAttribute("value")')