如何在Meteor中订阅收藏

Question

I have a problem I removed autopublish and now I want to subscribe again to my collections but it does not work ;(

Here is my lib code for the two collections:

Events = new Mongo.Collection('events');
Friends = new Mongo.Collection('friends');

then my server main.js

import { Meteor } from 'meteor/meteor';

Meteor.startup(() => {
  // code to run on server at startup



});

if (Meteor.isServer) {
  Meteor.publish("events", function() {
      return events.find();
  })
  Meteor.publish("friends", function() {
      return friends.find();
  })
}

and last my client code in the main.js on the client side

import { Template } from 'meteor/templating';
import { ReactiveVar } from 'meteor/reactive-var';

import './main.html';

Meteor.subscribe("events");
Meteor.subscribe("friends");

I am running Meteor 1.4 and my problem is I cant get information from the collection

Here is some code that with the autopublish already worked

Template.NeuesEvent.events({
    "submit .add-event": function(event){
        var Name = event.target.name.value;
        var Beschreibung = event.target.beschreibung.value;
        var Datum = event.target.Datum.value;
        var Autor = Meteor.userId();
        var eingeladene = [];
             $.each($('.FreundeCheckbox:checked'), function(){            
                eingeladene.push($(this).val());
            });


        if (Name == "")
        {
            confirm("Das Event braucht einen Namen ;)")
        }
        else {

        Events.insert({
            Name: Name,
            Beschreibung: Beschreibung,
            erstelltAm: new Date(),
            Datum: Datum,
            Eingeladen: eingeladene,
            Autor: Autor
        });

        event.target.name.value = "";
        event.target.beschreibung.value = "";
        FlowRouter.go('/meineEvents');

        return false;
    }
    }
});

and the helper to "print" it out

Template.meineEvents.helpers({
    event: function(){
        return Events.find({}, {sort: {createdAt: -1}});
    }
});

Hope you can help me to modify it so it works again Thanks ;)

Answer 1

you have to reference the symbols, not the collection names, like this:

if (Meteor.isServer) {
  Meteor.publish("events", function() {
      return Events.find();
  })
  Meteor.publish("friends", function() {
      return Friends.find();
  })
}

edit:

you said you have these collections:

Events = new Mongo.Collection('events');
Friends = new Mongo.Collection('friends');

where are they defined? are they available to both client and server? are they under any folder called "/imports"? if so, then they are not eagerly loaded and you need to export/import those symbols.

edit 2:

the next thing to check is to see if the data is published. the easiest way to do that is install meteortoys:allthings ( https://atmospherejs.com/meteortoys/allthings ) and see if the data made its way to the client. if not, then i would check to ensure that the subscribe() lines you provided are associated with the NeuesEvent template.

i typically do my subscriptions in the template, like this:

Template.NeuesEvent.onCreated(function() {
    this.subscribe('events');
    this.subscribe('friends');
});

... but it depends on your use case. here, those subscriptions will be active as long as the NeuesEvent template is active. when you switch to a different template, the subscriptions will end.