/** * {@inheritdoc} * * @since 4.8.1 */ public function getEventPrefix($name = null) { $prefix = ''; $prefix .= $this->getParent()->getEventPrefix(); $prefix .= parent::getEventPrefix(); if (is_null($name)) { return $prefix; } $prefix = static::stringHadPrefix($name) ? $name : "{$prefix}{$name}"; return $prefix; }