Testing: Added assert

main/inc/lib/events.lib.inc.php

@@ -562,18 +562,21 @@ function exercise_attempt_hotspot($exe_id, $question_id, $answer_id, $correct, $
 }
 
 /**
- * @author Yannick Warnier <yannick.warnier@dokeos.com>
- * @desc Record information for common (or admin) events (in the track_e_default table)
+ * Records information for common (or admin) events (in the track_e_default table)
+ * @author Yannick Warnier <yannick.warnier@beeznest.com>
  * @param	string	Type of event
  * @param	string	Type of value
  * @param	string	Value
  * @param	string	Timestamp (defaults to null)
  * @param	integer	User ID (defaults to null)
  * @param	string	Course code (defaults to null)
+ * @assert ('','','') === false
  */
 function event_system($event_type, $event_value_type, $event_value, $datetime = null, $user_id = null, $course_code = null) {
     global $TABLETRACK_DEFAULT;
-
+    if (empty($event_type)) {
+        return false;
+    }
     $event_type         = Database::escape_string($event_type);
     $event_value_type   = Database::escape_string($event_value_type);