MDL-14621 fix warning when module code missing and editing course

diff --git a/course/lib.php b/course/lib.php
index 654b1d84c4e80c550b25a908e885f47eb492c4dd..8f5d5ee9b18d086ff09434d6b8bc347ed84b5eea 100644 (file)
--- a/course/lib.php
+++ b/course/lib.php
@@ -1318,6 +1318,10 @@ function print_section($course, $section, $mods, $modnamesused, $absolute=false,
                     continue;
                 }
             } else {
+                if (!file_exists("$CFG->dirroot/mod/$mod->modname/lib.php")) {
+                    // module not installed
+                    continue;
+                }
                 if (!coursemodule_visible_for_user($mod)) {
                     // full visibility check
                     continue;