Change in event in the relational base of the spine does not work

Question

I work with a relational database with HasMany relationships. The add event will be fired, but the change event will not.

Model1 = Backbone.RelationalModel.extend({
    urlRoot: '/Leve1/',

    initialize: function () {
        this.listenTo(this, 'add:relatedModels', this.relationModelAdd);
        this.listenTo(this, 'change:relatedModels', this.relationModelChange);
    },

    relations: [{
        type: Backbone.HasMany,
        key: 'relatedModels',
        relatedModel: 'InnerModel'
    }],

    relationModelAdd: function () {
        alert("Add in related model");
    },

    relationModelChange: function () {
        alert("Change in related model");
    }
});

InnerModel = Backbone.RelationalModel.extend({
    urlRoot: '/Level2/'         
});

var outerModel = new Model1({
    id: 'model1',
});
var innerModel = new InnerModel({
    id: 'model11',          
});

outerModel.get('relatedModels').add(innerModel);

innerModel.set({
    id: 'model13'
});

Change an event using a HasOne relationship, but not with HasMany.

Answer 1

It seems that the event changedoes not fire in the external model Model1if the change occurs in any model InnerModelwithin the HasMany relationship collection. See Question in Backbone.RelationalModel on GitHub: Changing events that do not fire when a collection changes . The question was closed by the author, who said:

, change , - , Backbone.RelationalModel, this._relations . , :

Backbone.RelationalModel.prototype.bindRelationEvents = function() {
    var dit = this;
    _.each( this.getRelations(), function( relation ) {
        relation.related && relation.related.bind( 'all', function() {
            dit.trigger.apply( dit, arguments );
            // Or even simply `dit.render()`, if the number of events is reasonable...
        } );
    });
};

this.bindRelationEvents , .