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update_collection_order()

Description

Reorder the items in a collection using $neworder as the order by metric

Parameters

ColumnTypeDefaultDescription
$neworder array Array of columns to order by
$collection integer
$offset integer 0

Return

void

Location

include/collections_functions.php lines 3032 to 3071

Definition

 
function update_collection_order($neworder, $collection, $offset = 0)
{
    global $pagename, $username;

    if (!is_array($neworder)) {
        exit("Error: invalid input to update collection function.");
    }

    $neworder = array_filter($neworder, 'is_numeric');
    if (count($neworder) > 0) {
        $updatesql = "update collection_resource set sortorder=(case resource ";
        $counter = 1 + $offset;
        $params = [];
        foreach ($neworder as $colresource) {
            $updatesql .= "when ? then ? ";
            $params = array_merge($params, ['i', $colresource, 'i', $counter]);
            $counter++;
        }
        $updatesql .= "else sortorder END) WHERE collection= ?";
        ps_query($updatesql, array_merge($params, ['i', $collection]));
    }
    $updatesql = "update collection_resource set sortorder=99999 WHERE collection= ? and sortorder is NULL";
    ps_query($updatesql, ['i', $collection]);
    // Only log reordering if there is something new to log, i.e. different user, ordered from a different page
    $last_log = get_collection_log($collection, 1);
    if (
        (
            count($last_log['data']) > 0
            && (
                $last_log['data'][0]['type'] !== LOG_CODE_COLLECTION_REORDER 
                || date('Y-m-d', strtotime($last_log['data'][0]['date'])) !== date('Y-m-d')
                || strpos($last_log['data'][0]['notes'], $pagename) == 0
                || $last_log['data'][0]['username'] !== $username
            )
        )
        || count($last_log['data']) == 0
    ) {
        collection_log($collection, LOG_CODE_COLLECTION_REORDER, null, "Collection reordered via " . $pagename);
    }
}

This article was last updated 19th March 2026 12:35 Europe/London time based on the source file dated 17th March 2026 15:20 Europe/London time.