php - Validate unique entry on edit/update -


i'm trying validate unique entry when editing/updating record. validating searching database, if entry not found proceed else print error message. if entry (i using same process when adding new records)

my validation code is:

if (!empty($_post['ip_add'])) {     if (filter_var($_post['ip_add'], filter_validate_ip, filter_flag_ipv4) === false) {         $errors[] = $_post['ip_add'] . ' not valid ipv4';     } else {         $ip = $_post['ip_add'];         //check if ip unique         $qip = 'select inet_ntoa(ip_add) ip_add equipment ip_add = inet_aton(:ip)';         $database->query($qip);          $database->bind(':ip', $ip);         $rs = $database->resultset();         //execute our query         $database->execute();         if ($rs != null) {             $errors[] = $_post['ip_add'] . ' not unique';         } else {             $ip_add = $_post['ip_add'];         }     } } else {     $errors[] = "please enter valid ip address"; }

if there no errors update database:

$query = "   update equipment   set site_code = :site_code,     site_id = :site_id,     system_name = :system_name,     ip_add = inet_aton(:ip_add),     mcast =  inet_aton(:mcast),     sys_loc = :sys_loc,     systype = :systype,     itamname = :itamname,     dimetis = :dimetis,     dns = :dns   id = :id ";  //prepare query excecution $database->query($query); //bind parameters $database->bind(':site_code', $site_code); $database->bind(':site_id', $site_id); $database->bind(':system_name', $system_name); $database->bind(':ip_add', $ip_add); $database->bind(':mcast', $multicast); $database->bind(':sys_loc', $sys_loc); $database->bind(':systype', $systype); $database->bind(':itamname', $itamname); $database->bind(':dimetis', $_post['dimetis']); $database->bind(':dns', $_post['dns']); $database->bind(':id', $_post['id']);  // execute query $database->execute(); echo "record updated."; } }

i thinking search on records execpt current record editing. how this? there better way checking if ip addrss unique when editing record?

i got work excluding current record search:

$qip = '   select     inet_ntoa(ip_add) ip_add   equipment       ip_add = inet_aton(:ip)     , id != :id '; $database->query($qip);  $database->bind(':ip', $ip); $database->bind(':id', $id);

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