extJS. Свой select с данными из базы

hostPanel.combo.version = function(config) {
	config = config || {};
	Ext.applyIf(config, {
		store: new Ext.data.JsonStore({
			id: 0,
			autoLoad: true,
			fields: ['value'],
			url: hostPanel.config.connector_url,
			baseParams: {
				action: 'mgr/settings/get',
				name: 'version',
			},
		}),
		mode: 'remote',
		displayField: 'value',
		valueField: 'value',
		triggerAction: 'all',
		listeners: {
			success: {
				fn: function () {
					console.log('success')
				}, scope: this
			},
			error: {
				fn: function () {
					console.log('error')
				}, scope: this
			},
		},
	});
	hostPanel.combo.version.superclass.constructor.call(this,config);
};
Ext.extend(hostPanel.combo.version, MODx.combo.ComboBox);
Ext.reg('hostpanel-combo-version', hostPanel.combo.version);

<?php
class hostPanelSettingsGetProcessor extends modObjectGetProcessor {
	public $objectType = 'hostPanelSettings';
	public $classKey = 'hostPanelSettings';

	public function process()
	{
		$limit = trim($this->getProperty('limit', 10));
		$name = $this->getProperty('name');

		$c = $this->modx->newQuery($this->classKey);
		$c->select('value');
		$c->where(array('name' => $name));
		$c->limit($limit);

		if( $c->prepare() && $c->stmt->execute() ) {
			$res = $c->stmt->fetchAll(PDO::FETCH_ASSOC);
		}
		else { $res = array(); }

		return $this->outputArray($res);
	}
}

return 'hostPanelSettingsGetProcessor';