Помощь с ExtJS

yandexMarket.tree.Categories = function(config) {
	config = config || {};
    Ext.apply(config,{
        id : "mycomponent-grid-mygrid",
        url: yandexMarket.config.connector_url,
        action: 'mgr/product/getcategories',
        listeners: {
            checkchange: function(n, checked) {

                MODx.Ajax.request({
                    url: yandexMarket.config.connector_url,
                    params: {
                        id : "mycomponent-grid-mygrid",
                        action: 'mgr/product/changecategories',
                        category_id: n.attributes.pk,
                        checked: checked
                    }
                });

                // If a parent node is unchecked, uncheck all the children
                if (!n.getUI().isChecked()) {
                    n.expandChildNodes(true);
                    n.eachChild(function(child){
                        child.ui.toggleCheck(false);
                    })
                } else {
                    n.expandChildNodes(true);
                    n.eachChild(function(child){
                        child.ui.toggleCheck(true);
                    })
                }
            },
        }
	});
	yandexMarket.tree.Categories.superclass.constructor.call(this,config);
};

yandexMarket.tree.Categoriess = function(config) {
	config = config || {};
    Ext.apply(config,{
        id : "mycomponent-grid-mygrid1",
        url: yandexMarket.config.connector_url,
        action: 'mgr/product/getcategories',
        listeners: {
            checkchange: function(n, checked) {

                MODx.Ajax.request({
                    url: yandexMarket.config.connector_url,
                    params: {
                        id : "mycomponent-grid-mygrid1",
                        action: 'mgr/product/changecategories',
                        category_id: n.attributes.pk,
                        checked: checked
                    }
                });

                // If a parent node is unchecked, uncheck all the children
                if (!n.getUI().isChecked()) {
                    n.expandChildNodes(true);
                    n.eachChild(function(child){
                        child.ui.toggleCheck(false);
                    })
                } else {
                    n.expandChildNodes(true);
                    n.eachChild(function(child){
                        child.ui.toggleCheck(true);
                    })
                }
            },
        }
	});
	yandexMarket.tree.Categories.superclass.constructor.call(this,config);
};
Ext.extend(yandexMarket.tree.Categories, MODx.tree.Tree);
Ext.extend(yandexMarket.tree.Categoriess, MODx.tree.Tree);
Ext.reg('yandex-market-tree-categories', yandexMarket.tree.Categories);
Ext.reg('yandex-market-tree-categories1', yandexMarket.tree.Categoriess);

<?php
class yandexMarketChangeCategoriesProcessor extends modObjectProcessor {
    public $classKey = 'yandexMarketCategories';
	/** {@inheritDoc} */
	public function process() {
        $categoryId = $this->getProperty('category_id');
        $checked = $this->getProperty('checked') == 'true';
        $fields = array('category_id' => $categoryId);
        /** @var yandexMarketCategories $object */
        $object = $this->modx->getObject($this->classKey, $fields);

        if (!$object && $checked) {
            /** @var yandexMarketCategories $res */
            $res = $this->modx->newObject($this->classKey);
            $res->fromArray($fields);
            $res->save();
        } else if ($object && !$checked) {
            $object->remove();
        }
        return $this->success('');
	}
}
return 'yandexMarketChangeCategoriesProcessor';