MDL-40699 Language - Add option to Override Moodle's default behaviour to reset the...

This change adds an option to the Site Admin > Langauge > Language Settings page which can prevent Moodle from changing language when users log out.

Affected files:
	lang/en/admin.php
	admin/settings/language.php
	login/logout.php

Signed-off-by: Michael Milette <michael.milette@instruxmedia.com>

diff --git a/admin/settings/language.php b/admin/settings/language.php
index 1477082..207e89b 100644 (file)
--- a/admin/settings/language.php
+++ b/admin/settings/language.php
@@ -6,14 +6,25 @@ if ($hassiteconfig) {
 
     // "languageandlocation" settingpage
     $temp = new admin_settingpage('langsettings', new lang_string('languagesettings', 'admin'));
-    $temp->add(new admin_setting_configcheckbox('autolang', new lang_string('autolang', 'admin'), new lang_string('configautolang', 'admin'), 1));
-    $temp->add(new admin_setting_configselect('lang', new lang_string('lang', 'admin'), new lang_string('configlang', 'admin'), current_language(), get_string_manager()->get_list_of_translations())); // $CFG->lang might be set in installer already, default en is in setup.php
-    $temp->add(new admin_setting_configcheckbox('langmenu', new lang_string('langmenu', 'admin'), new lang_string('configlangmenu', 'admin'), 1));
+    $temp->add(new admin_setting_configcheckbox('autolang',
+        new lang_string('autolang', 'admin'), new lang_string('configautolang', 'admin'), 1));
+    $temp->add(new admin_setting_configselect('lang', new lang_string('lang', 'admin'),
+        new lang_string('configlang', 'admin'), current_language(),
+            get_string_manager()->get_list_of_translations()));
+            // The $CFG->lang variable might be set in installer already, default en is in setup.php.
+    $temp->add(new admin_setting_configcheckbox('keeplogoutlang', new lang_string('keeplogoutlang', 'admin'),
+        new lang_string('keeplogoutlang_desc', 'admin'), 1));
+    $temp->add(new admin_setting_configcheckbox('langmenu', new lang_string('langmenu', 'admin'),
+        new lang_string('configlangmenu', 'admin'), 1));
     $temp->add(new admin_setting_langlist());
-    $temp->add(new admin_setting_configcheckbox('langcache', new lang_string('langcache', 'admin'), new lang_string('langcache_desc', 'admin'), 1));
-    $temp->add(new admin_setting_configcheckbox('langstringcache', new lang_string('langstringcache', 'admin'), new lang_string('configlangstringcache', 'admin'), 1));
-    $temp->add(new admin_setting_configtext('locale', new lang_string('localetext', 'admin'), new lang_string('configlocale', 'admin'), '', PARAM_FILE));
-    $temp->add(new admin_setting_configselect('latinexcelexport', new lang_string('latinexcelexport', 'admin'), new lang_string('configlatinexcelexport', 'admin'), '0', array('0'=>'Unicode','1'=>'Latin')));
+    $temp->add(new admin_setting_configcheckbox('langcache', new lang_string('langcache', 'admin'),
+        new lang_string('langcache_desc', 'admin'), 1));
+    $temp->add(new admin_setting_configcheckbox('langstringcache', new lang_string('langstringcache', 'admin'),
+        new lang_string('configlangstringcache', 'admin'), 1));
+    $temp->add(new admin_setting_configtext('locale', new lang_string('localetext', 'admin'),
+        new lang_string('configlocale', 'admin'), '', PARAM_FILE));
+    $temp->add(new admin_setting_configselect('latinexcelexport', new lang_string('latinexcelexport', 'admin'),
+        new lang_string('configlatinexcelexport', 'admin'), '0', array('0' => 'Unicode', '1' => 'Latin')));
 
     $ADMIN->add('language', $temp);
 

diff --git a/lang/en/admin.php b/lang/en/admin.php
index 86fa99f..ef39c89 100644 (file)
--- a/lang/en/admin.php
+++ b/lang/en/admin.php
@@ -597,6 +597,8 @@ $string['iplookupinfo'] = 'By default Moodle uses the free online NetGeo (The In
 It is recommended to install local copy of free GeoLite City database from MaxMind.<br />
 IP address location is displayed on simple map or using Google Maps. Please note that you need to have a Google account and apply for free Google Maps API key to enable interactive maps.';
 $string['iplookupmaxmindnote'] = 'This product includes GeoLite data created by MaxMind, available from <a href="http://www.maxmind.com/">http://www.maxmind.com/</a>.';
+$string['keeplogoutlang'] = 'Keep language on logout';
+$string['keeplogoutlang_desc'] = 'Enable this option to prevent the user interface language from reverting back to the site\'s default language when users log out.';
 $string['keeptagnamecase'] = 'Keep tag name casing';
 $string['lang'] = 'Default language';
 $string['langcache'] = 'Cache language menu';

diff --git a/login/logout.php b/login/logout.php
index 664b179..b2c08d7 100644 (file)
--- a/login/logout.php
+++ b/login/logout.php
@@ -39,6 +39,12 @@ if ($login) {
     $redirect = $CFG->wwwroot.'/';
 }
 
+if (!empty($CFG->keeplogoutlang)) {
+    // Override Moodle's default behaviour to reset the UI language on logout.
+    $redirectlang = optional_param('lang', current_language(), PARAM_LANG);
+    $redirect = new moodle_url($redirect, array('lang' => $redirectlang));
+}
+
 if (!isloggedin()) {
     // no confirmation, user has already logged out
     require_logout();