<?php
 
include_once("../lib/common.inc.php");
 
$query = 'update contractnotice set "parentCN" = null where "parentCN" = \'0\'';
$result = $conn->prepare($query);
$result->execute();
$query = 'update contractnotice set "childCN" = null where "childCN" = \'0\'';
$result = $conn->prepare($query);
$result->execute();
$query = 'select "CNID","parentCN" from contractnotice where char_length("CNID") > 6 and "CNID" like \'%00_\' and "parentCN" is not null';
// "CNID" not like '%-A%'
//$query = 'select "CNID","parentCN" from contractnotice where char_length("CNID") > 8 and "CNID" like \'%00__\' and "parentCN" is not null';
$result = $conn->prepare($query);
$result->execute();
foreach ($result->fetchAll() as $record) {
    $oldCN = $record['CNID'];
    $parentCN = substr($oldCN, 0, -3);
    //$parentCN = substr($oldCN, 0, -4);
    if ($parentCN == $record['parentCN']) {
        $newCN = $parentCN . "-A" . substr($oldCN, -1);
        //$newCN = $parentCN . "-A" . substr($oldCN, -2);
        $updateresult = $conn->exec('UPDATE contractnotice SET "CNID" = \'' . $newCN . '\' where "CNID" = \'' . $oldCN . '\';');
 
        $errors = $conn->errorInfo();
 
        if ($errors[1] == 7) {
             echo "$oldCN => $newCN (from parent CN $parentCN) BUT already exists so deleting this record<br>\n";
             $updateresult = $conn->exec('delete from contractnotice where "CNID" = \'' . $oldCN . '\';');
 
        }else if ($errors[1] == 0) {
        
            echo "$oldCN => $newCN (from parent CN $parentCN) <br>\n";
        }else
            print_r($errors);
    } else {
        echo "parent CN unexpected - $oldCN doesn't look like child of {$record['parentCN']}, rather the ID suggests child of $parentCN <br>\n";
    }
}