From ecce451878dac9402a6c1be7575d634d72dacb95 Mon Sep 17 00:00:00 2001
From: Yair Spielmann <yair.spielmann@synergy-learning.com>
Date: Mon, 18 Jan 2016 13:48:30 +0000
Subject: [PATCH] MDL-52811 course: Require course:setforcedlanguage to force
 language.

---
 course/edit_form.php |  7 +++++--
 lang/en/role.php     |  1 +
 lib/db/access.php    | 10 ++++++++++
 3 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/course/edit_form.php b/course/edit_form.php
index 4ffe1729b74..3155ddfd1a4 100644
--- a/course/edit_form.php
+++ b/course/edit_form.php
@@ -205,8 +205,11 @@ class course_edit_form extends moodleform {
         $languages=array();
         $languages[''] = get_string('forceno');
         $languages += get_string_manager()->get_list_of_translations();
-        $mform->addElement('select', 'lang', get_string('forcelanguage'), $languages);
-        $mform->setDefault('lang', $courseconfig->lang);
+        if ((empty($course->id) && guess_if_creator_will_have_course_capability('moodle/course:setforcedlanguage', $categorycontext))
+                || (!empty($course->id) && has_capability('moodle/course:setforcedlanguage', $coursecontext))) {
+            $mform->addElement('select', 'lang', get_string('forcelanguage'), $languages);
+            $mform->setDefault('lang', $courseconfig->lang);
+        }
 
         // Multi-Calendar Support - see MDL-18375.
         $calendartypes = \core_calendar\type_factory::get_list_of_calendar_types();
diff --git a/lang/en/role.php b/lang/en/role.php
index f35cf01c6e6..cfc56992ce0 100644
--- a/lang/en/role.php
+++ b/lang/en/role.php
@@ -164,6 +164,7 @@ $string['course:changeshortname'] = 'Change course short name';
 $string['course:changesummary'] = 'Change course summary';
 $string['course:enrolconfig'] = 'Configure enrol instances in courses';
 $string['course:enrolreview'] = 'Review course enrolments';
+$string['course:setforcedlanguage'] = 'Force course language';
 $string['course:ignoreavailabilityrestrictions'] = 'Ignore availability restrictions';
 $string['course:ignorefilesizelimits'] = 'Use files larger than any file size restrictions';
 $string['course:isincompletionreports'] = 'Be shown on completion reports';
diff --git a/lib/db/access.php b/lib/db/access.php
index 323747d9d40..2efdccff27c 100644
--- a/lib/db/access.php
+++ b/lib/db/access.php
@@ -1062,6 +1062,16 @@ $capabilities = array(
         'clonepermissionsfrom' => 'moodle/course:update'
     ),
 
+    'moodle/course:setforcedlanguage' => array(
+        'captype' => 'write',
+        'contextlevel' => CONTEXT_COURSE,
+        'archetypes' => array(
+            'editingteacher' => CAP_ALLOW,
+            'manager' => CAP_ALLOW
+        ),
+        'clonepermissionsfrom' => 'moodle/course:update'
+    ),
+
 
     'moodle/site:viewparticipants' => array(