diff --git a/backup/moodle2/backup_course_task.class.php b/backup/moodle2/backup_course_task.class.php
index 5d4cd9b4f45..eb1b3b84677 100644
--- a/backup/moodle2/backup_course_task.class.php
+++ b/backup/moodle2/backup_course_task.class.php
@@ -129,20 +129,38 @@ class backup_course_task extends backup_task {
     /**
      * Code the transformations to perform in the course in
      * order to get transportable (encoded) links
+     * @param string $content content in which to encode links.
+     * @return string content with links encoded.
      */
     static public function encode_content_links($content) {
-        global $CFG;
-
-        $base = preg_quote($CFG->wwwroot, '/');
 
         // Link to the course main page (it also covers "&topic=xx" and "&week=xx"
-        // because they don't become transformed (section number) in backup/restore
-        $search = '/(' . $base . '\/course\/view.php\?id\=)([0-9]+)/';
-        $content= preg_replace($search, '$@COURSEVIEWBYID*$2@$', $content);
+        // because they don't become transformed (section number) in backup/restore.
+        $content = self::encode_links_helper($content, 'COURSEVIEWBYID',       '/course/view.php?id=');
+
+        // A few other key course links.
+        $content = self::encode_links_helper($content, 'GRADEINDEXBYID',       '/grade/index.php?id=');
+        $content = self::encode_links_helper($content, 'GRADEREPORTINDEXBYID', '/grade/report/index.php?id=');
+        $content = self::encode_links_helper($content, 'BADGESVIEWBYID',       '/badges/view.php?type=2&id=');
+        $content = self::encode_links_helper($content, 'USERINDEXVIEWBYID',    '/user/index.php?id=');
 
         return $content;
     }
 
+    /**
+     * Helper method, used by encode_content_links.
+     * @param string $content content in which to encode links.
+     * @param unknown_type $name the name of this type of encoded link.
+     * @param unknown_type $path the path that identifies this type of link, up
+     *      to the ?paramname= bit.
+     * @return string content with one type of link encoded.
+     */
+    static private function encode_links_helper($content, $name, $path) {
+        global $CFG;
+        $base = preg_quote($CFG->wwwroot . $path, '/');
+        return preg_replace('/(' . $base . ')([0-9]+)/', '$@' . $name . '*$2@$', $content);
+    }
+
 // Protected API starts here
 
     /**
diff --git a/backup/moodle2/restore_course_task.class.php b/backup/moodle2/restore_course_task.class.php
index 74bfef42a2e..e9058b8c61c 100644
--- a/backup/moodle2/restore_course_task.class.php
+++ b/backup/moodle2/restore_course_task.class.php
@@ -135,10 +135,17 @@ class restore_course_task extends restore_task {
     static public function define_decode_rules() {
         $rules = array();
 
-        $rules[] = new restore_decode_rule('COURSEVIEWBYID', '/course/view.php?id=$1', 'course');
+        // Link to the course main page (it also covers "&topic=xx" and "&week=xx"
+        // because they don't become transformed (section number) in backup/restore.
+        $rules[] = new restore_decode_rule('COURSEVIEWBYID',       '/course/view.php?id=$1',        'course');
+
+        // A few other key course links.
+        $rules[] = new restore_decode_rule('GRADEINDEXBYID',       '/grade/index.php?id=$1',        'course');
+        $rules[] = new restore_decode_rule('GRADEREPORTINDEXBYID', '/grade/report/index.php?id=$1', 'course');
+        $rules[] = new restore_decode_rule('BADGESVIEWBYID',       '/badges/view.php?type=2&id=$1', 'course');
+        $rules[] = new restore_decode_rule('USERINDEXVIEWBYID',    '/user/index.php?id=$1',         'course');
 
         return $rules;
-
     }
 
 // Protected API starts here
diff --git a/backup/util/helper/tests/backup_encode_content_test.php b/backup/util/helper/tests/backup_encode_content_test.php
new file mode 100644
index 00000000000..26299d95be3
--- /dev/null
+++ b/backup/util/helper/tests/backup_encode_content_test.php
@@ -0,0 +1,56 @@
+<?php
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * @package    core_backup
+ * @category   phpunit
+ * @copyright  2013 The Open University
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
+defined('MOODLE_INTERNAL') || die();
+
+
+global $CFG;
+require_once($CFG->dirroot . '/backup/util/includes/backup_includes.php');
+require_once($CFG->dirroot . '/backup/moodle2/backup_course_task.class.php');
+
+
+
+/**
+ * Tests for encoding content links in backup_course_task.
+ *
+ * The code that this tests is acutally in backup/moodle2/backup_course_task.class.php,
+ * but there is no place for unit tests near there, and perhaps one day it will
+ * be refactored so it becomes more generic.
+ */
+class backup_course_task_testcase extends basic_testcase {
+
+    /**
+     * Test the encode_content_links method for course.
+     */
+    public function test_course_encode_content_links() {
+        global $CFG;
+        $encoded = backup_course_task::encode_content_links(
+                $CFG->wwwroot . '/course/view.php?id=123, ' .
+                $CFG->wwwroot . '/grade/index.php?id=123, ' .
+                $CFG->wwwroot . '/grade/report/index.php?id=123, ' .
+                $CFG->wwwroot . '/badges/view.php?type=2&id=123 and ' .
+                $CFG->wwwroot . '/user/index.php?id=123.');
+        $this->assertEquals('$@COURSEVIEWBYID*123@$, $@GRADEINDEXBYID*123@$, ' .
+                '$@GRADEREPORTINDEXBYID*123@$, $@BADGESVIEWBYID*123@$ and $@USERINDEXVIEWBYID*123@$.', $encoded);
+    }
+}