Index: course/reset_form.php
===================================================================
--- course/reset_form.php	(revision 17607)
+++ course/reset_form.php	(working copy)
@@ -58,16 +58,14 @@
         if ($allmods = $DB->get_records('modules') ) {
             foreach ($allmods as $mod) {
                 $modname = $mod->name;
-                try {
-                    if (!$DB->count_records($modname, array('course'=>$COURSE->id))) {
-                        continue; // skip mods with no instances
-                    }
-                } catch (Exception $e) {
-                    // Exception here probably means the table doesn't exist or doesn't
-                    // have an expected column.  This can happen with old modules that
-                    // haven't been updated to 2.x on a site upgraded from 1.x.
-                    // Skip the module and continue.
-                    continue;
+                if (!$DB->get_manager()->table_exists($modname)) {
+                    continue; // Skip mods with a missing table
+                }
+                if (!$DB->get_manager()->field_exists($modname, 'course')) {
+                    continue; // Skip mods with a missing 'course' field
+                }
+                if (!$DB->count_records($modname, array('course'=>$COURSE->id))) {
+                    continue; // skip mods with no instances
                 }
                 $modfile = $CFG->dirroot."/mod/$modname/lib.php";
                 $mod_reset_course_form_definition = $modname.'_reset_course_form_definition';