Save extra data on vTigerCRM 6

Save.php

<?php

class Module_Save_Action extends Vtiger_Save_Action {

	public function process(Vtiger_Request $request) {
        $recordModel = $this->getRecordModelFromRequest($request);
        $accountId = (int)$request->get('module_tks_account');
        $accountModel = Vtiger_Record_Model::getInstanceById($accountId, 'Accounts');

        $fieldList = array(
            'module_tks_email' => 'email1',
            'module_tks_direccion' => 'bill_street',
            'module_tks_telefono' => 'phone'
        );

        foreach ($fieldList as $key => $value) {
            //die(var_dump($key . ' > ' . $accountModel->get($value)));
            $recordModel->set($key, $accountModel->get($value));
            $recordModel->column_fields[$key] = $accountModel->get($value);
        }

        $recordModel->save();

//        die(var_dump($recordModel));

        $loadUrl = $recordModel->getDetailViewUrl();
        header("Location: $loadUrl");
	}
}