How to publish a view/transform of a collection in Meteor?

Question

I have made a collection

var Words = new Meteor.Collection(\"words\");

and published it:

Meteor.publish(\"words\", functio         


        

Answer 1

You could assemble the counts by going through each document in Words, (cursor for each)

var countingCursor = Words.find({});
var wordCounts = {};

countingCursor.forEach(function (word) {
  wordCounts[word.length].count += 1;
  wordCounts[word.length].words = wordCounts[word.length].words || []
  wordCounts[word.length].words.push(word);
});

create a local collection,

var counts = new Meteor.Collection('local-counts-collection', {connection: null});

and insert your answers

var key, value;

for (key in wordCounts) {
  value = object[key];
  counts.insert({
    length: key,
    count: value.count,
    members: value.words
  });
}

Counts is now a collection, just not stored in Mongo.

Not tested!