/** * @param EmailModel $model * * @return string */ protected function getParentMessageId(EmailModel $model) { $messageId = ''; $parentEmailId = $model->getParentEmailId(); if ($parentEmailId && $model->getMailType() == EmailModel::MAIL_TYPE_REPLY) { $parentEmail = $this->getEntityManager()->getRepository('OroEmailBundle:Email')->find($parentEmailId); $messageId = $parentEmail->getMessageId(); } return $messageId; }