[+] Install: new installer reworked from scratch

install-new/upgrade/functions/move_crossselling.php

@@ -0,0 +1,14 @@
+<?php
+
+function move_crossselling()
+{
+
+if (Db::getInstance()->executeS('SELECT FROM `'._DB_PREFIX_.'module` WHERE `name` = \'crossselling\''))
+{
+Db::getInstance()->execute('
+INSERT INTO `'._DB_PREFIX_.'hook_module` (`id_module`, `id_hook`, `position`)
+VALUES ((SELECT `id_module` FROM `'._DB_PREFIX_.'module` WHERE `name` = \'crossselling\'), 9, (SELECT max_position FROM (SELECT MAX(position)+1 as max_position FROM `'._DB_PREFIX_.'hook_module` WHERE `id_hook` = 9) tmp))');
+}
+
+}
+