NetworkPort::getContact PHP Method

    function getContact($ID)
    {
        $wire = new NetworkPort_NetworkPort();
        if ($contact_id = $wire->getOppositeContact($ID)) {
            return $contact_id;
        }
        return false;
    }

 function getNetworkEquipment($id, $line, $a_links = array())
 {
     $networkPort = new NetworkPort();
     $a_networkports = $networkPort->find("`itemtype`='NetworkEquipment'\n         AND `items_id`='" . $id . "'");
     $i = 0;
     foreach ($a_networkports as $data_n) {
         $networkports_id = $networkPort->getContact($data_n['id']);
         if ($networkports_id) {
             $networkPort->getFromDB($networkports_id);
             switch ($networkPort->fields['itemtype']) {
                 case 'NetworkEquipment':
                     if ($i > 0) {
                         $this->line++;
                         $this->routes[$this->line] = $this->routes[$line];
                         $line = $this->line;
                     }
                     array_push($this->routes[$line], $networkPort->fields['items_id']);
                     if (!isset($this->devices[$networkPort->fields['items_id']])) {
                         $this->devices[$networkPort->fields['items_id']] = $networkPort->fields['items_id'];
                         $this->getNetworkEquipment($networkPort->fields['items_id'], $line);
                     }
                     $i++;
                     break;
             }
         }
     }
 }