private function fetchDistinctDate($table) { $dar = $this->disk_usage_dao->retrieve("SELECT distinct date FROM {$table} ORDER BY date"); $dates = array(); foreach ($dar as $row) { $date = explode(' ', $row['date']); $dates[] = $date[0]; } return $dates; }
private function fetchOldestDate($table) { return $this->disk_usage_dao->searchOldestDate($table); }