blocks|key|52403|text|您可以使用以下Meteor.logout+-+http://docs.meteor.com/#meteor_logout|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|52404|entityMap|0|LINK|mutability|MUTABLE|url|http://docs.meteor.com/#meteor_logout^0|N|11|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can use the following Meteor.logout - <a href="http://docs.meteor.com/#meteor_logout" rel="nofollow">http://docs.meteor.com/#meteor_logout</a>

blocks|key|52431|text|您可以使用Deps.autorun设置一个自定义处理程序，以观察Meteor.userId()反应性变量的变化。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|52432|Meteor.userId()+(和Meteor.user())是反应变量，分别返回当前记录在userId中的记录(如果没有记录，则返回null)和Meteor.users集合中相应的用户文档(记录)。|52433|因此，可以通过对这些反应性数据源的修改做出反应来跟踪Meteor应用程序的签入/签出。|52434|client/main.js：|52435|var+lastUser=null;

Meteor.startup(function(){
++++Deps.autorun(function(){
++++++++var+userId=Meteor.userId();
++++++++if(userId){
++++++++++++console.log(userId%2B"+connected");
++++++++++++//+do+something+with+Meteor.user()
++++++++}
++++++++else+if(lastUser){
++++++++++++console.log(lastUser._id%2B"+disconnected");
++++++++++++//+can't+use+Meteor.user()+anymore
++++++++++++//+do+something+with+lastUser+(read-only+!)
++++++++++++Meteor.call("userDisconnected",lastUser._id);
++++++++}
++++++++lastUser=Meteor.user();
++++});
});|code-block|syntax|javascript|52436|在此代码示例中，我设置了一个源文件局部变量(lastUser)来跟踪登录到应用程序的最后一个用户。然后在Meteor.startup中，我使用Deps.autorun来设置反应式上下文(每当访问的反应式数据源之一被修改时，将重新执行该代码)。这个反应式上下文跟踪Meteor.userId()的变化并做出相应的反应。|52437|在断开连接的代码中，不能使用Meteor.user()，但是如果想要访问最后一个用户文档，可以使用lastUser变量。如果您想要在注销后修改文档，则可以使用lastUser._id作为参数调用服务器方法。|52438|server/server.js|52439|Meteor.methods({
++++userDisconnected:function(userId){
++++++++check(userId,String);
++++++++var+user=Meteor.users.findOne(userId);
++++++++//+do+something+with+user+(read-write)
++++}
});|52440|但请注意，恶意客户端可以使用任何userId调用此服务器方法，因此除非设置了一些验证码，否则不应执行任何关键操作。|52441|entityMap^0|0|0|0|0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|Z|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|10|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|11|8|@]|9|@]|A|$]]|$1|H|3|I|5|J|7|12|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|13|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|14|8|@]|9|@]|A|$]]|$1|Q|3|R|5|6|7|15|8|@]|9|@]|A|$]]|$1|S|3|T|5|J|7|16|8|@]|9|@]|A|$K|L]]|$1|U|3|V|5|6|7|17|8|@]|9|@]|A|$]]|$1|W|3|-4|5|6|7|18|8|@]|9|@]|A|$]]]|X|$]]

You may use Deps.autorun to setup a custom handler observing Meteor.userId() reactive variable changes.

Meteor.userId() (and Meteor.user()) are reactive variables returning respectively the currently logged in userId (null if none) and the corresponding user document (record) in the Meteor.users collection.

As a consequence one can track signing in/out of a Meteor application by reacting to the modification of those reactive data sources.

client/main.js :

<pre><code>var lastUser=null;

Meteor.startup(function(){
 Deps.autorun(function(){
 var userId=Meteor.userId();
 if(userId){
 console.log(userId+" connected");
 // do something with Meteor.user()
 }
 else if(lastUser){
 console.log(lastUser._id+" disconnected");
 // can't use Meteor.user() anymore
 // do something with lastUser (read-only !)
 Meteor.call("userDisconnected",lastUser._id);
 }
 lastUser=Meteor.user();
 });
});
</code></pre>

In this code sample, I'm setting up a source file local variable (lastUser) to keep track of the last user that was logged in the application.
Then in Meteor.startup, I use Deps.autorun to setup a reactive context (code that will get re-executed whenever one of the reactive data sources accessed is modified).
This reactive context tracks Meteor.userId() variation and reacts accordingly.

In the deconnection code, you can't use Meteor.user() but if you want to access the last user document you can use the lastUser variable.
You can call a server method with the lastUser._id as argument if you want to modify the document after logging out.

server/server.js

<pre><code>Meteor.methods({
 userDisconnected:function(userId){
 check(userId,String);
 var user=Meteor.users.findOne(userId);
 // do something with user (read-write)
 }
});
</code></pre>

Be aware though that malicious clients can call this server method with anyone userId, so you shouldn't do anything critical unless you setup some verification code.

blocks|key|268948|text|使用我创建的user-status包：https://github.com/mizzao/meteor-user-status。这完全是服务器端的。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|268949|有关用法，请参阅文档，但您可以将事件处理程序附加到会话注销：|268950|UserStatus.events.on+"connectionLogout",+(fields)+->
++console.log(fields.userId+%2B+"+with+connection+"+%2B+fields.connectionId+%2B+"+logged+out")|code-block|syntax|javascript|268951|请注意，用户可以通过多个会话从不同的位置一次登录。这个智能包可以检测到所有这些信息，以及用户是否在线。有关更多信息或实现您自己的方法，请查看代码。|268952|目前，该包不区分浏览器窗口关闭和注销，并将它们视为相同。|268953|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/mizzao/meteor-user-status^0|6|B|J|18|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Y|8|@$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|6|7|14|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|15|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|16|8|@]|D|@]|E|$]]|$1|O|3|P|5|6|7|17|8|@]|D|@]|E|$]]|$1|Q|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|R|$S|$5|T|U|V|E|$W|X]]]]

Use the <code>user-status</code> package that I've created: <a href="https://github.com/mizzao/meteor-user-status" rel="nofollow">https://github.com/mizzao/meteor-user-status</a>. This is completely server-side.

See the docs for usage, but you can attach an event handler to a session logout:

<pre><code>UserStatus.events.on "connectionLogout", (fields) -&gt;
 console.log(fields.userId + " with connection " + fields.connectionId + " logged out")
</code></pre>

Note that a user can be logged in from different places at once with multiple sessions. This smart package detects all of them as well as whether the user is online at all. For more information or to implement your own method, check out the code.

Currently the package doesn't distinguish between browser window closes and logouts, and treats them as the same.

blocks|key|52502|text|@saimeunt提供的答案看起来是正确的，但对于我需要的东西来说，它有点松散。相反，我采用了一个非常简单的方法，如下所示：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|52503|if+(Meteor.isClient)+{
++++Deps.autorun(function+()+{
++++++++if(!Meteor.userId())
++++++++{
++++++++++++Session.set('store',+null);
++++++++}
++++});
}|code-block|syntax|javascript|52504|但是，如果用户尚未登录，则会在页面加载过程中触发此操作，这可能是不可取的。所以你可以使用下面这样的代码：|52505|if+(Meteor.isClient)+{
++++var+userWasLoggedIn+=+false;
++++Deps.autorun(function+(c)+{
++++++++if(!Meteor.userId())
++++++++{
++++++++++++if(userWasLoggedIn)
++++++++++++{
++++++++++++++++console.log('Clean+up');
++++++++++++++++Session.set('store',+null);
++++++++++++}
++++++++}
++++++++else
++++++++{
++++++++++++userWasLoggedIn+=+true;
++++++++}
++++});
}|52506|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The answer provided by @saimeunt looks about right, but it is a bit fluffy for what I needed. Instead I went with a very simple approach like this:

<pre><code>if (Meteor.isClient) {
 Deps.autorun(function () {
 if(!Meteor.userId())
 {
 Session.set('store', null);
 }
 });
}
</code></pre>

This is however triggered during a page load if the user has not yet logged in, which might be undesirable. So you could go with something like this instead:

<pre><code>if (Meteor.isClient) {
 var userWasLoggedIn = false;
 Deps.autorun(function (c) {
 if(!Meteor.userId())
 {
 if(userWasLoggedIn)
 {
 console.log('Clean up');
 Session.set('store', null);
 }
 }
 else
 {
 userWasLoggedIn = true;
 }
 });
}
</code></pre>

blocks|key|269038|text|没有一种解决方案对我有效，因为它们都存在无法区分用户手动注销和浏览器页面重新加载/关闭的问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|269039|我现在使用hack，但至少它是有效的(只要您不提供除默认帐户-ui按钮之外的任何其他注销方法)：|269040|Template._loginButtons.events({
++++'click+#login-buttons-logout':+function(ev)+{
++++++++console.log("manual+log+out");
++++++++//+do+stuff
++++}
});|code-block|syntax|javascript|269041|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

None of the solutions worked for me, since they all suffered from the problem of not being able to distinguish between manual logout by the user vs. browser page reload/close.

I'm now going with a hack, but at least it works (as long as you don't provide any other means of logging out than the default accounts-ui buttons):

<pre><code>Template._loginButtons.events({
 'click #login-buttons-logout': function(ev) {
 console.log("manual log out");
 // do stuff
 }
});
</code></pre>

blocks|key|52644|text|我们有一个类似的需求，虽然不是很精确。当客户退出时，我们想对他们做一些清理工作。我们是通过劫持Meteor.logout做到的|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|52645|if+(Meteor.isClient)+{
++var+_logout+=+Meteor.logout;
++Meteor.logout+=+function+customLogout()+{
++++//+Do+your+thing+here
++++_logout.apply(Meteor,+arguments);
++}
}|code-block|syntax|javascript|52646|entityMap^0|1B|D|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

We had a similar, though not exact requirement. We wanted to do a bit of clean up on the client when they signed out. We did it by hijacking <code>Meteor.logout</code>:

<pre><code>if (Meteor.isClient) {
 var _logout = Meteor.logout;
 Meteor.logout = function customLogout() {
 // Do your thing here
 _logout.apply(Meteor, arguments);
 }
}
</code></pre>

Is there any way to pick up when a user logs out of the website? I need to do some clean up when they do so. Using the built-in meteor.js user accounts.

I'll be doing some validation using it, so I need a solution that cannot be trigger on behalf of other users on the client side - preferably something completely server side.

Picking up meteor.js user logout

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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当用户退出网站时，有什么方法可以取回吗？当他们这样做时，我需要做一些清理工作。使用内置的meteor.js用户帐户。我将使用它做一些验证，所以我需要一个不能代表客户端的其他用户触发的解决方案-最好是完全服务器端的东西。

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