如何在 jQuery 中调用 rails 方法 [英] How to call a rails method from in jQuery

问题描述

我有这个 JQuery 代码:

I have this JQuery code:

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

    });

我想从 jQuery 代码内部调用这个 rails 方法作为回调:

and I want to call this rails method from inside the jQuery code as a callback:

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

这个方法在我的用户模型中.有没有办法做到这一点?

This method is in my user model. Is there any way to do this?

推荐答案

进行 AJAX 调用，设置路由，使用控制器操作进行响应并调用您的方法.

Make an AJAX call, set up a route, respond with a controller action and call your method.

# 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

这篇关于如何在 jQuery 中调用 rails 方法的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！