Fix Curriculum Search by activity type.

application/modules/courses/models/CourseModel.php

@@ -597,6 +597,11 @@ class Courses_CourseModel extends Unl_Model
         if ($criteria['integratedStudies']) {
         	$select->where('c.integratedStudies = ?', 'yes');
         }
+        if ($criteria['activity']) {
+            $select->join(array('ca' => 'creqCourseActivities'), 'g.courseGenerationId = ca.generation', array());
+            $select->join(array('act' => 'creqActivityTypes'), 'ca.type = act.shortName', array());
+            $select->where('act.activityTypeId = ?', $criteria['activity']);
+        }
         if (!$includeRemoved) {
             $select->where('g.courseGenerationId = g2.courseGenerationId');
         }