Use caching if necessary, so that teachers can't lock themselves out

accidentally during the current session.

diff --git a/course/teacher.php b/course/teacher.php
index 7fe180fe8ae5dfeb13fb32c1bbc8f04358b36d15..938d6e4218b4062ce41c531c0b81f878879e884b 100644 (file)
--- a/course/teacher.php
+++ b/course/teacher.php
@@ -76,7 +76,7 @@
 /// Add a teacher if one is specified
 
     if (!empty($add)) {
-           if (!isteacher($course->id, $USER->id)){
+           if (!isteacher($course->id)){
                    error("You must be an administrator or teacher to modify this course.");
         }
 
@@ -110,7 +110,7 @@
 
     if (!empty($remove)) {
 
-        if (!isteacher($course->id, $USER->id)){
+        if (!isteacher($course->id)){
                error("You must be an administrator or teacher to modify this course.");
                }
         if (! $user = get_record("user", "id", $remove)) {