如何异步加载在导轨部分页面 [英] How to asynchronously load a partial page in rails

问题描述

在创建上轨/ jQuery的应用程序中的红宝石，有一个网页，很耗时，生成的一部分。

In creating a ruby on rails / jquery app, there's a part of a page that is time-consuming to generate.

我想更改的页面加载，使得大部分的页面加载的向右走，而且一个占位符预留耗时的加载异步，并注入到页面的Ajax / jQuery的时候才完蛋了。

I want to change how the page is loaded so that most of the page loads right away, and a placeholder is reserved for the time-consuming part to load asynchronously, and be injected into the page with ajax / jquery when it is finished.

我现在已经（简体）是什么：

What I have now (simplified):

应用程序/视图/样品/ show.html.erb：

app/views/sample/show.html.erb:

<div id="theResult">
    <%= render :partial => 'calculate', :object => @org) %>
</div>

和部分将使用一些地方@org生成一些内容（打另一外部REST服务）。

and the partial will use some parts @org to generate some content (hitting another external REST service).

应用程序/视图/样品/ _calculate.html.erb

app/views/sample/_calculate.html.erb

<%
    # code to take org and turn it into content
%>
<!--...html to display results here -->

我知道这很可能打破正常的MVC架构的规则，因为我的部分，似乎有太多的逻辑，想清理一下，以及...

I realize this is probably breaking proper MVC architecture rules since my partial seems to have too much logic, and would like to clean that up as well...

所以我想我有两个问题一：（1）我怎么得到这个工作，和（2）我应该怎么打扫一下遵循良好的红宝石/导轨/ MVC的做法

So I guess I have two questions in one: (1) how do I get this to work, and (2) how should I clean this up to follow good ruby/rails/mvc practices?

推荐答案

先放一个空的占位符格主响应

First put an empty, placeholder div in the main response

<div id="pink-dancing-elephants"></div>

，然后加少许的jQuery的页面

and then add a little jQuery to the page

$.ajax({
    url: "/elephants/dancing",
    cache: false,
    success: function(html){
      $("#pink-dancing-elephants").append(html);
    }
});

和有反应/大象/舞蹈/粉红返回HTML，你想拥有填补了DIV的BLOB的操作。在一个由AJAX请求调用的操作，你要渲染：布局=>假，以保持HTML返回的BLOB从包括整个框架。例如，

and have the action that responses to /elephants/dancing/pink return the blob of HTML that you want to have fill up the div. In the action that is invoked by the AJAX request, you'll want to render with :layout => false to keep the returned blob of HTML from including the entire frame. E.g.

# elephants_controller.rb
def dancing
  @elephants = #whatever
  render :layout => false
end

这将使在视图中/大象/ dancing.html.erb的模板。

This would render the template in views/elephants/dancing.html.erb.

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