backbone.js - Backbone best place for custom event bind & custom even trigger -

backbone.js - Backbone best place for custom event bind & custom even trigger -

i have custom event triggered upon user interaction on bbone view of collection, , i'd signal changes on unrelated view. utilize custom event.

//a global event object pub-sub model var vent = backbone.extend({}, backbone.event); var c1 = backbone.collection.extend(); var v1 = backbone.view.extend( events: { 'click .appointment': 'clickcallback' }, clickcallback: function(){ vent.trigger('appointment:selected', apptprops); } ); var c1obj = new c1([{...}, {...}]); var v1obj = new v1({ collection: c1obj });

so when user clicks on .appointment element of collection view v1obj, announce appointment:selected event.

now want different view v2 react event. best place bind "appointment:selected" event? in initialize() of view v2 (case 1) or in initialize() of collection/model of v2 (case 2) or somewhere else? i'm trying clarify what's best practice, if any.

case 1:

var v2 = backbone.view.extend( initialize: function(){ vent.on('appointment:selected', this.apptselected, this); }, appselected: function(apptprops){ ... } );

case 2:

var c2 = backbone.collection.extend( initialize: function(){ vent.on('appointment:selected', this.apptselected, this); }, appselected: function(apptprops){ ... } );

as far understand, philosophy of bbone upon user interaction, manipulate info , not modify markup, thought beingness info changes cascade views. if so, reply original question case 2?

i think idiomatic thing be:

represent state of "selected" inclusion in collection when user clicks .appointment, view1 adds appointment model selectedappointments collection view2 binds normal collection lifecycle events (add, remove, reset) of selectedappointments , re-renders accordingly both views take collection in options argument initialize

just side note of backbone 0.9.9 backbone object can used application-wide event bus instead of vent object.

events backbone.js triggers bind