bindEvents pattern

bindevents.js

var Cat = Backbone.Model.extend({

    initialize: function(){
        
        _(this).bindAll( 'bindEvents', 'action', 'dispose' );

        this.bindEvents();

    },

    bindEvents: function( bind ){
        
        bind = ( typeof bind === 'undefined' ) true || bind;
        var on_off = ( bind )? 'on' : 'off';

        this.collection[on_off]( 'add', this.action );
        this[on_off]( 'change:title', this.action );

    },

    action: function(){

        // do something here

    },

    dispose: function(){

        this.bindEvents( false );

    }

});