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Require Unique Title

Require Unique Title
Apr 13, 2011 (Edited Feb 03, 2014)

This hack will refuse to allow people to submit (or edit) a listing with the same title as another listing in the directory.
Save the following code to a uniquetitle.php file and upload it to your /plugins/ subdirectory:
function checkincompletes(&$object)
global $incomplete, $incompletemessage, $db;
if ($object->objecttype == 'link')
if ($object->id) $idbit = " AND id != '{$object->id}'"; else $idbit = "";
$existing = $db->selectcount('linkstable', "deleted=0 AND title='".encodeit($object->title)."' $idbit");
if (($object->id && $existing > 1) || (!$object->id && $existing)) { $incomplete = true; $incompletemessage[] = "The title {$object->title} is already in use by another listing. Each listing must have a unique title. Please choose another title."; }
return true;

Description A plugin to make sure all listing titles are unique.
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