MDL-53440 course: Better interface for approving multiple courses

Added another target 'pending' in course/edit.php for redirection
This will help administrator/managers approve multiple courses
one after another

course/edit.php

@@ -55,6 +55,9 @@ if ($returnto === 'url' && confirm_sesskey() && $returnurl) {
             case 'topcat':
                 $returnurl = new moodle_url($CFG->wwwroot . '/course/');
                 break;
+            case 'pending':
+                $returnurl = new moodle_url($CFG->wwwroot . '/course/pending.php');
+                break;
         }
     }
 }

course/pending.php

@@ -51,7 +51,7 @@ if (!empty($approve) and confirm_sesskey()) {
     $courseid = $course->approve();
 
     if ($courseid !== false) {
-        redirect($CFG->wwwroot.'/course/edit.php?id=' . $courseid);
+        redirect(new moodle_url('/course/edit.php', ['id' => $courseid, 'returnto' => 'pending']));
     } else {
         print_error('courseapprovedfailed');
     }