CODEWITHSUNDEEP
angularrxjsangular-meteor
Thomas W.
Thomas W.

Reputation: 2224

Angular 2.0 Meteor: How to subscribe collection correctly?

I've introduced a publisher for a collection on the server side with the following code:

Meteor.publish('posts', () => Posts.find());

Now I want to subscribe to the collection on the client side. As an example I want to print the number of entries in the collection to the console, whenever the data has changed:

ngOnInit() { Meteor.subscribe('posts', () => { console.log(Posts.find().count()); }); }

The result is somehow confusing to me:

Observable {_isScalar: false, source: ObservableCursor, operator: CountOperator}

It seems I've misunderstood the whole concept. What is the right way to implement this functionallity?

Upvotes: 0

Views: 371

Answers (2)

RimCoder
RimCoder

Reputation: 1

On client side I created a count function:

myCount(p:any) {
    return p.fetch().length;
}

and in my html page I added that function:

{{ myCount(posts) }}

Upvotes: 0

Mikkel
Mikkel

Reputation: 7777

I think you are missing some common code, which I usually put in /common

model.js:

// Collections that exist on the server database
Posts = new Mongo.Collection("posts");

The effect of this is to make 'Posts' a variable in both client and server code.

Component code:

Meteor.subscribe('posts', () => []);

this.helpers({
  posts: () => Posts.find(),

Upvotes: 1

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