Subscription manager doesn't update collection after new subscription

问题

In my Meteor application I have this situation in which I have a 'Settings' collection only on the client. So the publish function is:

Meteor.publish('settings', function (option) {

    this.added("settings", "settings", {
        bar: true,
        foo: { .... }
    });

    this.ready();
});

Initially I subscribe like:

waintOn: function () {
    return subs.subscribe('settings')
}

But when the route changes I subscribe again like

return subs.subscribe('settings', 10);

After this I see that the publish function runs, but on the client nothing happens. For some reason the server thinks that the data did not change and decides to do nothing. So the question is how can I tell Meteor that the data has changed so it sends the data to the client. If the problem is completely different, I'm also very interested!!

UPDATE: the publish function might look like this:

Meteor.publish('settings', function (option) {
    var list;

    if (option === 10) {
       list = [1,2,3,4,5];
    }

    this.added("settings", "settings", {
        bar: true,
        foo: list
    });

    this.ready();
});

UPDATE2: Expected solution:

var isNew = true;
Meteor.publish('settings', function () {

    if(isNew) {
        this.added("settings", "settings", {
            bar: true,
            foo: list
        });
        isNew = false;
    }
    else {
        this.changed('settings', 'settings', {.....});
    }

    this.ready();
});

It would even be better if there was a function like this.exists('settings', 'settings') because the isNew variable feels a bit like a hack!

Anyway, I have it working now as follows:

 try { 
     this.removed('settings', 'settings');
 } catch(e){}

 this.added('settings', 'settings', {...});
 ...

来源：https://stackoverflow.com/questions/24825369/subscription-manager-doesnt-update-collection-after-new-subscription

标签

meteor

publish-subscribe