From c56248f14bef84578b3d211de62e97b05fb3f124 Mon Sep 17 00:00:00 2001
From: Mark Nelson <markn@moodle.com>
Date: Tue, 15 Jan 2013 14:09:50 +0800
Subject: [PATCH] MDL-37275 webservices: ensure a webservice function is chosen
 before attempting to add to service

---
 admin/webservice/forms.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/admin/webservice/forms.php b/admin/webservice/forms.php
index 13e1c3ddc4f..14b8576c170 100644
--- a/admin/webservice/forms.php
+++ b/admin/webservice/forms.php
@@ -163,6 +163,7 @@ class external_service_functions_form extends moodleform {
 
         $mform->addElement('searchableselector', 'fids', get_string('name'),
                 $functions, array('multiple'));
+        $mform->addRule('fids', get_string('required'), 'required', null, 'client');
 
         $mform->addElement('hidden', 'id');
         $mform->setType('id', PARAM_INT);