MDL-46705 admin: Check if course with same shortname already exists

2015-09-16 09:45:50 +08:00
parent e544b6b02a
commit 68bd2b3132
1 changed files with 4 additions and 0 deletions
@@ -4001,10 +4001,14 @@ class admin_setting_sitesettext extends admin_setting_configtext {
     * @return mixed true or message string
     */
    public function validate($data) {
+        global $DB;
        $cleaned = clean_param($data, PARAM_TEXT);
        if ($cleaned === '') {
            return get_string('required');
        }
+        if ($this->name ==='shortname' && $DB->record_exists('course', array('shortname' => $data))) {
+            return get_string('shortnametaken', 'error', $data);
+        }
        if ("$data" == "$cleaned") { // implicit conversion to string is needed to do exact comparison
            return true;
        } else {