backbone.js - Where to use event aggregator in backbone marionette? -

i want implement custom vent event aggregator instance requirejs explainer here

looking @ examples here , in docs, i've seent calls vent.on , vent.trigger used in views. pattern be:

define(['marionette', 'vent'], function (marionette, vent) {     return marionette.itemview.extend({         initialize: function () {            //bind            this.listento(vent, 'mycustomevent', this.mymethod);            //trigger            vent.trigger('viewinit', ...);         }     }); }); 

is pattern correct (views responsible managing aggregator events) or should use on models , collections?

the event aggregator pub/sub system communication.

regarding "what should go where", i'd suggest following in cases:

• views trigger events (according user has clicked, e.g.)
• controllers listen , react events (deleting model, e.g.)

of course, there many ways use event aggregator, when dealing views, above method fits use cases.

using event aggregator useful manage routing events , remove duplication (see section "implementing routing" here: http://samples.leanpub.com/marionette-gentle-introduction-sample.pdf )