OEModule\OphCoCvi\controllers\DefaultController::actionRetrieveConsentSignature PHP Method

    public function actionRetrieveConsentSignature($id)
    {
        $signature_element = $this->getManager()->getConsentSignatureElementForEvent($this->event);
        if ($signature_element->saveSignatureImageFromPortal()) {
            $this->event->audit('event', 'cvi-consent-added', null, 'CVI Consent Signature Added', array('user_id' => $this->getApp()->user->id));
            $this->getApp()->user->setFlash('success.cvi_consent_signature', 'Signature successfully loaded.');
            $this->updateEventInfo();
        } else {
            $this->getApp()->user->setFlash('error.cvi_consent_signature', 'Signature could not be found');
        }
        $this->redirect(array('/' . $this->event->eventType->class_name . '/default/view/' . $id));
    }