Kint::trace PHP Method

    public static function trace($trace = null)
    {
        if (!self::enabled()) {
            return '';
        }
        return self::dump(isset($trace) ? $trace : debug_backtrace(true));
    }

 public function save()
 {
     $pdo_connection = DB::connection();
     $success = true;
     //the begin of transaction
     $pdo_connection->beginTransaction();
     try {
         $query = $pdo_connection->prepare("INSERT INTO saalistieto (pvm, kellonaika," . " kalalaji, lkm, pituus, paino, vesisto, paikka, tuulenvoimakkuus," . " tuulensuunta, ilmanlampo, vedenlampo, pilvisyys, huomiot," . " saaliskuva, pyydys) VALUES(:pvm, NULLIF(:aika,'')::time, :laji, :lkm," . " NULLIF(:pituus,'')::numeric, NULLIF(:paino,'')::numeric, :vesisto," . " :paikka, :tuulenVoima, :tuulenSuunta," . " NULLIF(:ilmanLampo,'')::integer, NULLIF(:vedenLampo,'')::integer, :pilvisyys," . " :huomiot, :kuva, NULLIF(:pyydys,'default')::integer) RETURNING saalisid");
         $query->execute(array('pvm' => $this->date, 'aika' => $this->time, 'laji' => $this->species, 'lkm' => $this->count, 'pituus' => $this->length, 'paino' => $this->weight, 'vesisto' => $this->water_sys, 'paikka' => $this->location, 'tuulenVoima' => $this->wind_speed, 'tuulenSuunta' => $this->wind_dir, 'ilmanLampo' => $this->air_temp, 'vedenLampo' => $this->water_temp, 'pilvisyys' => $this->cloudiness, 'huomiot' => $this->notes, 'kuva' => $this->picture_url, 'pyydys' => $this->trap_id));
         $resultRow = $query->fetch();
         $this->catch_id = $resultRow['saalisid'];
         $catchers;
         $username = array($_SESSION['user']);
         if (isset($this->friends)) {
             $catchers = array_merge($username, $this->friends);
         } else {
             $catchers = $username;
         }
         $query_2 = $pdo_connection->prepare("INSERT INTO pyydystaja VALUES(" . ":kalastaja, :saalisid)");
         foreach ($catchers as $catcher) {
             $query_2->execute(array('kalastaja' => $catcher, 'saalisid' => $this->catch_id));
         }
     } catch (PDOException $e) {
         $success = false;
         Kint::dump($e);
         Kint::trace();
     }
     //end of transaction
     if (!$success) {
         $pdo_connection->rollBack();
     } else {
         $pdo_connection->commit();
     }
 }