Added robustness when no courses defined yet

diff --git a/admin/teacher.php b/admin/teacher.php
index 3786513415ac5b617493acaa17f75bca83f40fac..2c4482671c7b4ad3451321011420e44f3eaa89f8 100644 (file)
--- a/admin/teacher.php
+++ b/admin/teacher.php
@@ -50,12 +50,14 @@
                print_heading(get_string("choosecourse"));
                print_simple_box_start("center");
         
-               foreach ($courses as $course) {
-                   if ($isadmin or isteacher($course->id, $USER->id)){
-                           echo "<a href=\"teacher.php?id=$course->id\">$course->fullname ($course->shortname)</a><br>\n";
-                               $coursesfound = TRUE;
-                       }
-               }       
+        if (!empty($courses)) {
+                   foreach ($courses as $course) {
+                       if ($isadmin or isteacher($course->id, $USER->id)){
+                               echo "<a href=\"teacher.php?id=$course->id\">$course->fullname ($course->shortname)</a><br>\n";
+                                   $coursesfound = TRUE;
+                           }
+                   }   
+        }
                
         print_simple_box_end();