function wrsqz_testEnvironment(){
global $CFG;
require_once($CFG->dirroot . '/lib/setuplib.php');
$unicodedb=setup_is_unicodedb();
if($unicodedb){
$message='Your Database has UNICODE charset.';
}else{
$message='Quizzes uses UNICODE characters and will not work. Please migrate your database to a UNICODE charset.';
}
printRow('Database', $unicodedb, $message);
$mbstring=extension_loaded('mbstring');
if($mbstring){
$message='Multibyte PHP extension is loaded.';
}else{
$message='Quizzes uses Multibyte PHP extension but it is\'t installed or loaded. Please check your php.ini file.';
}
printRow('mbstring',$mbstring,$message);
if($mbstring){
$mbInternalEncoding = mb_internal_encoding();
$mbInternalEncodingChange = mb_internal_encoding('UTF-8');
$mbInternalEncodingUTF8 = mb_internal_encoding();
$message = 'Multibyte internal encoding by default: <b>'. $mbInternalEncoding .'</b>. Current encoding: <b>'.$mbInternalEncodingUTF8.'</b>.';
printRow('mbstring encoding',$mbInternalEncodingUTF8=='UTF-8',$message);
}
}
die;
}
$strdatabasesetup = get_string("databasesetup");
$strdatabasesuccess = get_string("databasesuccess");
$navigation = build_navigation(array(array('name' => $strdatabasesetup, 'link' => null, 'type' => 'misc')));
print_header($strdatabasesetup, $strdatabasesetup, $navigation, "", upgrade_get_javascript(), false, " ", " ");
/// return to original debugging level
$CFG->debug = $origdebug;
error_reporting($CFG->debug);
upgrade_log_start();
$db->debug = true;
/// Both old .sql files and new install.xml are supported
/// But we prioritise install.xml (XMLDB) if present
change_db_encoding();
// first try to change db encoding to utf8
if (!setup_is_unicodedb()) {
// If could not convert successfully, throw error, and prevent installation
print_error('unicoderequired', 'admin');
}
$status = false;
if (file_exists("{$CFG->libdir}/db/install.xml")) {
$status = install_from_xmldb_file("{$CFG->libdir}/db/install.xml");
//New method
} else {
if (file_exists("{$CFG->libdir}/db/{$CFG->dbtype}.sql")) {
$status = modify_database("{$CFG->libdir}/db/{$CFG->dbtype}.sql");
//Old method
} else {
error("Error: Your database ({$CFG->dbtype}) is not yet fully supported by Moodle or install.xml is not present. See the lib/db directory.");
}
}
/**
* This function will check if unicode database requirements are satisfied
* @param string $version xml version we are going to use to test this server
* @return object results encapsulated in one environment_result object
*/
function environment_check_unicode($version)
{
global $db;
$result = new environment_results('unicode');
/// Get the enviroment version we need
if (!($data = get_environment_for_version($version))) {
/// Error. No version data found
$result->setStatus(false);
$result->setErrorCode(NO_VERSION_DATA_FOUND);
return $result;
}
/// Extract the unicode part
if (!isset($data['#']['UNICODE'])) {
/// Error. No UNICODE section found
$result->setStatus(false);
$result->setErrorCode(NO_UNICODE_SECTION_FOUND);
return $result;
} else {
/// Extract level
$level = get_level($data['#']['UNICODE']['0']);
}
if (!($unicodedb = setup_is_unicodedb())) {
$result->setStatus(false);
} else {
$result->setStatus(true);
}
$result->setLevel($level);
/// Do any actions defined in the XML file.
process_environment_result($data['#']['UNICODE'][0], $result);
return $result;
}
function change_db_encoding()
{
global $CFG, $db;
// try forcing utf8 collation, if mysql db and no tables present
if ($CFG->dbfamily == 'mysql' && !$db->Metatables()) {
$SQL = 'ALTER DATABASE ' . $CFG->dbname . ' CHARACTER SET utf8';
execute_sql($SQL, false);
// silent, if it fails it fails
if (setup_is_unicodedb()) {
configure_dbconnection();
}
}
}