blocks|key|689143|text|您需要在服务器端设置一个控制器来调用render_read方法，然后可以在jQuery中使用$.ajax或$.post发出请求。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|689144|entityMap|0|LINK|mutability|MUTABLE|url|http://api.jquery.com/jQuery.ajax/|1|http://api.jquery.com/jQuery.post/^0|I|B|1A|6|1H|6|1A|6|0|1H|6|1|0^^$0|@$1|2|3|4|5|6|7|P|8|@$9|Q|A|R|B|C]|$9|S|A|T|B|C]|$9|U|A|V|B|C]]|D|@$9|W|A|X|1|Y]|$9|Z|A|10|1|11]]|E|$]]|$1|F|3|-4|5|6|7|12|8|@]|D|@]|E|$]]]|G|$H|$5|I|J|K|E|$L|M]]|N|$5|I|J|K|E|$L|O]]]]

You would need to set up a controller on the server side to call your <code>render_read</code> method and then you could use <a href="http://api.jquery.com/jQuery.ajax/" rel="nofollow"><code>$.ajax</code></a> or <a href="http://api.jquery.com/jQuery.post/" rel="nofollow"><code>$.post</code></a> in your jQuery to make the request.

blocks|key|689197|text|你有模型代码是很好的。我们需要添加一个新操作，并确保您的路由已设置。如果您正在使用资源，则必须添加集合或成员。由于您正在进行更新，因此我会选择PUT作为http方法。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|689198|下面是一个路由示例：|689199|resources+:user_notifications+do
  collection+do
    put+'render_read'
  end
end|code-block|syntax|javascript|689200|继续并将render_read操作添加到控制器中。|689201|您的jQuery代码将如下所示：|689202|$("p.exclamation,+div#notification_box").live("mouseover",+function()+{+++
++$.ajax({
++++url:+"/user_notifications/render_read",
++++type:+'PUT'
++});
});|689203|entityMap^0|1Z|3|0|0|0|4|B|0|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|X|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|Y|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|Z|8|@$9|10|A|11|B|C]]|D|@]|E|$]]|$1|O|3|P|5|6|7|12|8|@]|D|@]|E|$]]|$1|Q|3|R|5|J|7|13|8|@]|D|@]|E|$K|L]]|$1|S|3|-4|5|6|7|14|8|@]|D|@]|E|$]]]|T|$]]

It's good that you have that model code. We'll need to add a new action and make sure your route is setup. If you're using resources you'll have to add collection or member. Since you're doing an update I would choose <code>PUT</code> as the http method.

Here's an example route:

<pre><code>resources :user_notifications do
  collection do
    put 'render_read'
  end
end
</code></pre>

Go ahead and add the <code>render_read</code> action to your controller.

Your jQuery code will look something like this:

<pre><code>$("p.exclamation, div#notification_box").live("mouseover", function() { 
 $.ajax({
 url: "/user_notifications/render_read",
 type: 'PUT'
 });
});
</code></pre>

blocks|key|689271|text|通常情况下，JavaScript在客户端工作，但也有可能您的应用程序为每个客户端绘制一个javaScript函数。在这种情况下，您可以在.erb文件中使用<%25=和标记%25>：|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|689272|<script+type="text/javascript">
$(function(){
++++new+AClass.function({
++++++++text:+<%25=+Date.today+%25>
++++});
});
</script>|code-block|syntax|javascript|689273|entityMap^0|25|3|2B|2|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]|$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|R|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|S|8|@]|D|@]|E|$]]]|L|$]]

Normally JavaScript works in the client side, but it's is also possible that your application draws a javaScript function for a each client. In that case you can use the <code>&lt;%=</code> and tags <code>%&gt;</code> in a .erb file:

<pre><code>&lt;script type="text/javascript"&gt;
$(function(){
 new AClass.function({
 text: &lt;%= Date.today %&gt;
 });
});
&lt;/script&gt;
</code></pre>

I have this JQuery code:

<pre><code>$("p.exclamation, div#notification_box").live("mouseover", function() {

 });
</code></pre>

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

<pre><code>def render_read
 self.user_notifications.where(:read =&gt; false).each do |n|
 n.read = true
 n.save
 end
end
</code></pre>

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

How to call a rails method from in jQuery

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我有这个JQuery代码：$("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：def render_read  self.user_notifications...

问如何在jQuery中调用rails方法
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