每次用户更改角色时运行订阅 [英] Running a subscription each time user changes roles

问题描述

我有一些订阅需要在用户更改角色时刷新.由于用户现在有一个新角色，我需要重新发布订阅，因为他们考虑了角色.这是我正在尝试做的:

I have some subscriptions I need to refresh when a user changes roles. Since the user now has a new role I need to republish the subscriptions as they take role into account. Here is what I'm attempting to do:

Tracker.autorun(function(){
    Meteor.users.find({_id: Meteor.userId()}, {fields: {"roles": 1}});
    console.log("You changed roles, republishing data");
    Meteor.subscribe('pendingUsers');
});

我正在使用 alanning:roles.它似乎在某些情况下有效，但在其他情况下无效.不会触发此运行的一种情况是当我从流星外壳"更改用户角色时.我究竟做错了什么?有没有更好的方法来做到这一点?

I'm using alanning:roles. It seems to work in some situations but not others. One situation that doesn't trigger this to run is when I alter the users roles from "meteor shell". What am I doing wrong? Is there a better way to do this?

推荐答案

您需要在 subscribe() 中进行一些更改.请参阅文档:

You need to make something change within your subscribe(). See docs:

但是，如果您的 run 函数的下一次迭代订阅了相同的记录集(相同的名称和参数)，Meteor 足够聪明，可以跳过浪费的取消订阅/重新订阅.

However, if the next iteration of your run function subscribes to the same record set (same name and parameters), Meteor is smart enough to skip a wasteful unsubscribe/resubscribe.

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