a FlightJS mixin to teardown a group of components

flight-collections.js

define(function (require) {
    
    var registry = require('flight/lib/registry');
    
    return withTeardownColletion;
    
    function withTeardownCollection() {
        this.before('teardown', function () {
            if (typeof this.attr.collectionName == 'string') {
                Object.keys(registry.allInstances).forEach(function (instanceKey) {
                    var component = registry.allInstances[instanceKey].instance;
                    if (
                        /* component !== this && ?*/
                        component.attr.collectionName && 
                        component.attr.collectionName == this.attr.collectionName
                    ) {
                        component.teardown();
                    }
                }, this);
            }
        }); 
    }
});