Modify the code to check that a request type is valid to pull the list of types from the database.

application/modules/requests/models/RequestModel.php

@@ -719,10 +719,10 @@ class Requests_RequestModel extends Unl_Model
     {
         return $this->_data['typeDescription'];
     }
-
+    
 	public function setType($type)
 	{
-        if (!in_array($type, array('NewCourse', 'ChangeCourse', 'RemoveCourse', 'AddISToCourse', 'NewCourseWithIS', 'NewCourseWithACE', 'AddACEToCourse', 'AddACEAndChangeCourse', 'RemoveACEFromCourse', 'RemoveACEAndChangeCourse'))) {
+        if (!in_array($type, $this->getTypes())) {
             throw new Exception('Unknown request type!');
         }