andrewlorenz

Meteor methods are a means by which a client can execute synchronous code on the server as if it was local, and wait for the result before continuing.

The important word to note here is "synchronous" - meteor methods are only good "out of the box" if the server-side code it is executing is non-blocking.  So what do we do when we need to execute asynchronous code on the server?

There are 3 possible approaches:

a) Meteor.wrapAsync
b) async/await
c) fibers/future

andrewlorenz

Increment counter:
  db.analytics.update({"url" : "www.example.com"},{"$inc" : {"pageviews" : 1}})

Adding/Updating a field in a document:
  db.blog.posts.update({"author.name" : "joe"}, {"$set" : {"author.name" : "joe schmoe"}})
  db.positions.update({},{$set:{pos_short_status:"O"}},{upsert:false,multi:true});
  db.clients.update({cli_status:"N"},{$set:{cli_status:"A"}},{upsert:false,multi:true});

Removing a field from a document:
  db.users.update({"name" : "joe"}, ... {"$unset" : {"favorite book" : 1}})

andrewlorenz

Meteor data subscription

how to ensure all data has been delivered to the client before continuing
(e.g. in order to initialise a jQuery object that must have all UI elements present)


//-------------------------------------------------------------------
Template.sample.onCreated(function() {
//-------------------------------------------------------------------