private function getAugmentedFieldValue($artifact_id, Tracker_Report $report) { $result = ''; EventManager::instance()->processEvent(TRACKER_EVENT_FIELD_AUGMENT_DATA_FOR_REPORT, array('additional_criteria' => $report->getAdditionalCriteria(), 'result' => &$result, 'artifact_id' => $artifact_id, 'field' => $this)); return $result; }