$this->err->add($i18n->get('error.field'), $i18n->get('label.group_name'));
if (!ttValidString($this->currency, true))
$this->err->add($i18n->get('error.field'), $i18n->get('label.currency'));
$this->err->add($i18n->get('error.field'), $i18n->get('label.group_name'));
if (!ttValidString($this->currency, true))
$this->err->add($i18n->get('error.field'), $i18n->get('label.currency'));