如何在jQuery中调用rails方法

Question

我有这个JQuery代码:

$("p.exclamation, div#notification_box").live("mouseover", function() {

    });

我想从jQuery代码中调用这个rails方法作为回调:

def render_read
  self.user_notifications.where(:read => false).each do |n|
    n.read = true
    n.save
  end
end

此方法在我的用户模型中.有没有办法做到这一点？

Answer 1

进行AJAX呼叫,设置路由,使用控制器操作进行响应并调用方法.

# whatever.js
$("p.exclamation, div#notification_box").on("mouseover", function() {
  $.ajax("/users/render_read")
});

# routes.rb
resources :users do
  get :render_read, on: :collection 
  # or you may prefer to call this route on: :member
end

# users_controller.rb
def render_read
  @current_user.render_read
  # I made this part up, do whatever necessary to find the needed user here
end

PS:此代码适用于Rails 3.x和Ruby 1.9.x.