Improve LP speed

main/inc/ajax/lp.ajax.php

@@ -65,7 +65,6 @@ switch ($action) {
         if (api_is_allowed_to_edit(null, true)) {
 
             $new_order = $_POST['new_order'];
-
             $sections = explode('^', $new_order);
             $new_array = array();
 
@@ -189,12 +188,7 @@ switch ($action) {
             break;
         }
 
-        $learningPath = new learnpath(
+        $learningPath = learnpath::getLpFromSession(api_get_course_id(), $lpId, api_get_user_id());
-            api_get_course_id(),
-            $lpId,
-            api_get_user_id()
-        );
-
         $lpItem = $learningPath->getItem($lpItemId);
 
         if (empty($lpItem)) {