can not use with publish as it is returning array of objects instead of cursor

[dlinx]

No description provided.

[arunoda]

You can't use this with publications. This is meant to use with a Meteor
method.
If not, you need to build a polling logic in the publication yourself.

On Fri, May 15, 2015 at 5:02 PM Laxmikant Dange [email protected]
wrote:

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#17.

[pdiniz13]

Do you have a functional example that I can see how to get the data from the server to the client.

[zimme]

I was looking into using aggregate function today and I realized that when you use the aggregate function, the one not wrapped, you can specify { cursor: {} } as an option and not provide a callback and what you get back will be a cursor.

What if we could wrap this cursor with a cursor that Meteor can use, this way we could use aggregate functionality in a publication.

This is what you can do to get a cursor from the aggregate function.

var cursor = Meteor.users.rawCollection().aggregate([{ $match: {} }], { cursor: {} });

As I said this will not be a cursor Meteor knows how to handle today but we should be able to use the Cursor/SynchronousCursor/CursorDescription and such to build a AggregateCursor which Meteor knows how to map to DDP.

[tobiaghiraldini]

Hi @arunoda, I am actually using this inside a publication.
The pattern I am following is to use the added function of the Meteor.publish
http://docs.meteor.com/#/full/publish_added
in order to add the aggregation to a collection I am using for aggregation purposes along with a template level subscription.
I realize this is not reactive and it needs recomputation as soon as data is changing, so I added the subscription inside an autorun function watching for changes in the data being aggregated.
Just ping me if any help is needed.

[gVolop]

look https://blog.khophi.co/reactive-aggregation-in-meteor/ and https://github.com/JcBernack/meteor-reactive-aggregate it wrap this logic perfectly