mirror of
https://github.com/moodle/moodle.git
synced 2025-02-24 03:53:49 +01:00
bbbf2d4015
======================================= WARNING: DEV IS CURRENTLY VERY UNSTABLE. This is a mega-checkin of the new Roles system. A lot of changes have been made in core and modules. Currently there are a lot of rough edges and known problems. We are working hard on these .. .the reason for getting this into HEAD at this stage is enable us to move faster (our branch was diverging from HEAD too much). Please keep an eye on http://docs.moodle.org/en/Roles for current status and information for developers on how to use the new Roles system.
1113 lines
46 KiB
PHP
Executable File
1113 lines
46 KiB
PHP
Executable File
<?php //$Id$
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///dummy field names are used to help adding and dropping indexes. There's only 1 case now, in scorm_scoes_track
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//testing
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require_once('../config.php');
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require_once($CFG->libdir.'/adminlib.php');
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require_once($CFG->libdir.'/environmentlib.php');
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require_once($CFG->dirroot.'/course/lib.php');
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require_login();
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// decalre once
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global $enc;
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$customlang = array();
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$enc = array('af' => 'iso-8859-1', 'ar' => 'windows-1256', 'be' => 'windows-1251', 'bg' => 'windows-1251', 'bs' => 'windows-1250', 'ca' => 'iso-8859-1', 'cs' => 'iso-8859-2', 'da' => 'iso-8859-1', 'de' => 'iso-8859-1', 'de_du' => 'iso-8859-1', 'de_utf8' => 'utf-8', 'el' => 'windows-1253', 'en' => 'iso-8859-1', 'en_ja' => 'euc-jp', 'en_us' => 'iso-8859-1', 'en_utf8' => 'utf-8', 'es' => 'iso-8859-1', 'es_ar' => 'iso-8859-1', 'es_es' => 'iso-8859-1', 'es_mx' => 'iso-8859-1', 'et' => 'iso-8859-1', 'eu' => 'iso-8859-1', 'fa' => 'windows-1256', 'fa_utf8' => 'utf-8', 'fi' => 'iso-8859-1', 'fil' => 'iso-8859-15', 'fr' => 'iso-8859-1', 'fr_ca' => 'iso-8859-15', 'ga' => 'iso-8859-1', 'gl' => 'iso-8859-1', 'he' => 'ISO-8859-8-I', 'he_utf8' => 'utf-8', 'hi' => 'iso-8859-1', 'hr' => 'windows-1250', 'hr_utf8' => 'utf-8', 'hu' => 'iso-8859-2', 'id' => 'iso-8859-1', 'is' => 'iso-8859-1', 'it' => 'iso-8859-1', 'ja' => 'EUC-JP', 'ja_utf8' => 'UTF-8', 'ka_utf8' => 'UTF-8', 'km_utf8' => 'UTF-8', 'kn_utf8' => 'utf-8', 'ko' => 'EUC-KR', 'ko_utf8' => 'UTF-8', 'lt' => 'windows-1257', 'lv' => 'ISO-8859-4', 'mi_nt' => 'iso-8859-1', 'mi_tn_utf8' => 'utf-8', 'ms' => 'iso-8859-1', 'nl' => 'iso-8859-1', 'nn' => 'iso-8859-1', 'no' => 'iso-8859-1', 'no_gr' => 'iso-8859-1', 'pl' => 'iso-8859-2', 'pt' => 'iso-8859-1', 'pt_br' => 'iso-8859-1', 'ro' => 'iso-8859-2', 'ru' => 'windows-1251', 'sk' => 'iso-8859-2', 'sl' => 'iso-8859-2', 'sl_utf8' => 'utf-8', 'so' => 'iso-8859-1', 'sq' => 'iso-8859-1', 'sr_utf8' => 'utf-8', 'sv' => 'iso-8859-1', 'th' => 'TIS-620', 'th_utf8' => 'UTF-8', 'tl' => 'iso-8859-15', 'tl_utf8' => 'UTF-8', 'tr' => 'iso-8859-9', 'uk' => 'windows-1251', 'vi_utf8' => 'UTF-8', 'zh_cn' => 'GB18030', 'zh_cn_utf8' => 'UTF-8', 'zh_tw' => 'Big5', 'zh_tw_utf8' => 'UTF-8');
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/**************************************
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* Custom lang pack handling *
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**************************************/
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// scan list of langs, including customs packs
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$langs = get_list_of_languages();
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// foreach lang
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foreach ($langs as $lang => $lang1) {
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if (in_array($lang, array_keys($enc))) {
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// if already in array, ignore
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continue;
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}
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// if this lang has got a charset
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if ($result = get_string_from_file('thischarset',$CFG->dirroot.'/lang/'.$lang.'/moodle.php', "\$resultstring")) {
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eval($result);
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$enc[$lang] = $resultstring;
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} else if ($result = get_string_from_file('parentlanguage',$CFG->dirroot.'/lang/'.$lang.'/moodle.php',"\$resultstring")) {
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// else if there's a parent lang we can use
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eval($result);
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$enc[$lang] = $enc[$resultstring];
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} else {
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notify ('unknown lang pack detected '.$lang);
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}
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}
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/**************************************
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* End custom lang pack handling *
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**************************************/
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if (!isadmin()) {
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error('Only admins can access this page');
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}
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if (!$site = get_site()) {
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redirect('index.php');
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}
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if (!empty($CFG->unicodedb)) {
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error ('unicode db migration has already been performed!');
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}
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$migrate = optional_param('migrate', 0, PARAM_BOOL);
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$confirm = optional_param('confirm', 0, PARAM_BOOL);
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$textlib = textlib_get_instance();
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$stradministration = get_string('administration');
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$strdbmigrate = get_string('dbmigrate','admin');
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$filename = $CFG->dataroot.'/'.SITEID.'/maintenance.html'; //maintenance file
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print_header("$site->shortname: $stradministration", "$site->fullname",
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'<a href="index.php">'. "$stradministration</a> -> $strdbmigrate");
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print_heading($strdbmigrate);
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if ($CFG->dbtype == 'postgres7') {
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$CFG->pagepath = 'admin/utfdbmigrate/postgresql';
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}
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//if $confirm
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if ($confirm && confirm_sesskey()) {
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//do the real migration of db
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print_simple_box_start('center','50%');
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print_string('importlangreminder','admin');
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print_simple_box_end();
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db_migrate2utf8();
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print_heading('db unicode migration has been completed!');
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unlink($filename); //no longer in maintenance mode
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@require_logout();
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print_continue($CFG->wwwroot.'/'.$CFG->admin.'/langimport.php');
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}
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//else if $migrate
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else if ($migrate && confirm_sesskey()) {
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if ($CFG->dbtype == 'postgres7' && !is_postgres_utf8()) {
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$continue = false;
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if (($form = data_submitted()) && isset($form->dbhost)) {
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validate_form($form, $err);
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if (count($err) == 0) {
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$_SESSION['newpostgresdb'] = $form;
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$continue = true;
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}
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}
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} else {
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$continue = true;
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}
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if ($continue) {
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echo '<div align="center">';
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print_simple_box_start('center','50%');
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print_string('dbmigratewarning2','admin');
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print_simple_box_end();
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//put the site in maintenance mode
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check_dir_exists($CFG->dataroot.'/'.SITEID, true);
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if (touch($filename)) {
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$file = fopen($filename, 'w');
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fwrite($file, get_string('maintinprogress','admin'));
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fclose($file);
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} else {
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notify (get_string('maintfileopenerror','admin'));
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}
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//print second confirmation box
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echo '<form name="migratefrom" action="utfdbmigrate.php" method="POST">';
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echo '<input name="confirm" type="hidden" value="1" />';
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echo '<input name="sesskey" type="hidden" value="'.sesskey().'" />';
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$xmls = utf_get_xml();
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$sumrecords = 0; //this is the sum of all records of relavent tables.
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foreach ($xmls as $xml) { ///foreach xml file, we must get a list of tables
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$dbtables = $xml['DBMIGRATION']['#']['TABLES'][0]['#']['TABLE']; //real db tables
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foreach ($dbtables as $dbtable) {
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$dbtablename = $dbtable['@']['name'];
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if ($dbtablename=='adodb_logsql') {
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$prefix = '';
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} else {
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$prefix = $CFG->prefix;
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}
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$sumrecords += count_records_sql("SELECT COUNT(*) FROM {$prefix}$dbtablename");
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}
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}
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echo 'Total number of records in your database is <b>'.$sumrecords.'</b>';
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if ($sumrecords > 10000) {
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echo '<br />Number of Records to process before halting (Leave blank for no limit) <input name="maxrecords" type="text" value="" />';
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}
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//print the "i-know-what-lang-to-use" menu
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echo '<br />The whole site is in this encoding: (leave blank if you are not sure)';
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echo '<select name="globallang"><option value="">I am not sure</option>';
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foreach ($enc as $lang => $encoding) {
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echo '<option value="'.$encoding.'">'.$lang.'</option>';
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}
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echo '</select>';
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echo '<p /><input type="submit" value="'.get_string('continue').'"/>';
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echo '<input type="button" value="'.get_string('cancel').'" onclick="javascript:history.go(-1)" />';
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echo '</form>';
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echo '</div>';
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} else {
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echo '<div align="center">';
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print_simple_box_start('center','50%');
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print_string('dbmigratepostgres','admin');
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print_simple_box_end();
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print_simple_box_start("center", "");
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include("utfdbmigrate.html");
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print_simple_box_end();
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}
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}
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else { //else, print welcome to migrate page message
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echo '<div align="center">';
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print_simple_box_start('center','50%');
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print_string('dbmigratewarning','admin');
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print_simple_box_end();
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/*************************************
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* Eloy's environement checking code *
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*************************************/
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$current_version = $CFG->release;
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/// Gather and show results
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$status = check_moodle_environment($current_version, $environment_results);
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//end of env checking
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/// We only allow to continue if environmental checks have been passed ok
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if ($status) {
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echo '<form name="migratefrom" action="utfdbmigrate.php" method="POST">';
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echo '<input name="migrate" type="hidden" value="1" />';
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echo '<input name="sesskey" type="hidden" value="'.sesskey().'" />';
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echo '<input type="submit" value="'.get_string('continue').'"/>';
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echo ' <input type="button" value="'.get_string('cancel').'" onclick="javascript:history.go(-1)" />';
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echo '</form>';
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echo '</div>';
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}
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}
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print_footer();
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function db_migrate2utf8(){ //Eloy: Perhaps some type of limit parameter here
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//pointing to the num of records to process would be
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//useful. And it won't break anything, because the
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//crash system will continue the next time it was
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//executed. Also, the function could return:
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//0 = Some sort of error
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//1 = Finished completelly!
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//2 = Finished limit records
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//(using constants, of course ;-))
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//Then, all those errors, should be converted to
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//mtrace() and return 0. (showing the current
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//table/field/recordid)
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global $db, $CFG, $dbtablename, $fieldname, $record, $processedrecords;
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$debug = ($CFG->debug > 7);
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//echo date("H:i:s");
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ignore_user_abort(false); // see bug report 5352. This should kill this thread as soon as user aborts.
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@set_time_limit(0);
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@ob_implicit_flush(true);
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@ob_end_flush();
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$maxrecords = optional_param('maxrecords', 0, PARAM_INT);
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$globallang = optional_param('globallang', '', PARAM_FILE);
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$processedrecords = 0;
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$ignoretables = array(); //list of tables to ignore, optional
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//one gigantic array to hold all db table information read from all the migrate2utf8.xml file.
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require_once($CFG->dirroot.'/lib/xmlize.php');
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$xmls = utf_get_xml(1);
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$tablestoconvert = 0; // total number of tables to convert
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foreach ($xmls as $xml) { ///foreach xml file, we must get a list of tables
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$dbtables = $xml['DBMIGRATION']['#']['TABLES'][0]['#']['TABLE']; //real db tables
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foreach ($dbtables as $dbtable) {
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$tablestoconvert++;
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}
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}
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// progress bar handling
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// first let's find out how many tables there are
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$done = 0;
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print_progress($done, $tablestoconvert, 5, 1);
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$textlib = textlib_get_instance(); //only 1 reference
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//if unicodedb is set, migration is complete. die here;
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if (!$crash = get_record('config','name','dbmigration')) {
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//Duplicate the database if not unicode for postgres7
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if ($CFG->dbtype == 'postgres7' && !is_postgres_utf8() && !is_postgres_setup()) {
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echo '<script>';
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echo 'document.getElementById("text").innerHTML = "Copying data to the UTF8 database for processing...";'."\n";
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echo '</script>';
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if ($_SESSION['newpostgresdb']->dbcluster) {
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$cluster = ' --cluster ' . $_SESSION['newpostgresdb']->dbcluster;
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} else {
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$cluster = '';
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}
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$pgdump = 'pg_dump';
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if (!empty($_SESSION['newpostgresdb']->pathtopgdump)) {
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$pgdump = $_SESSION['newpostgresdb']->pathtopgdump;
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}
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$psql = 'psql';
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if (!empty($_SESSION['newpostgresdb']->pathtopsql)) {
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$pgsql = $_SESSION['newpostgresdb']->pathtopsql;
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}
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$cmd = "PGPASSWORD={$CFG->dbpass} PGCLIENTENCODING='UNICODE' PGDATABASE={$CFG->dbname} $pgdump -Fp -O -x -U {$CFG->dbuser}$cluster";
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if ($CFG->dbhost) {
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$host = split(":", $CFG->dbhost);
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if ($host[0]) $cmd .= " -h {$host[0]}";
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if (isset($host[1])) $cmd .= " -p {$host[1]}";
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}
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$cmds[] = $cmd;
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$cmds[] = 'grep -v "COMMENT ON SCHEMA"';
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$cmds[] = 'iconv -f UTF-8 -t UTF-8 -c';
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$cmd = "PGPASSWORD={$_SESSION['newpostgresdb']->dbpass} PGDATABASE={$_SESSION['newpostgresdb']->dbname} $psql -q -U {$_SESSION['newpostgresdb']->dbuser} -v ON_ERROR_STOP=1$cluster";
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if ($_SESSION['newpostgresdb']->dbhost) {
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$host = split(":", $_SESSION['newpostgresdb']->dbhost);
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if ($host[0]) $cmd .= " -h {$host[0]}";
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if (isset($host[1])) $cmd .= " -p {$host[1]}";
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}
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$cmds[] = $cmd;
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foreach ($cmds as $key => $cmd) {
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$files[] = tempnam($CFG->dataroot, 'utf8_');
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$cmd = $cmd . ($key?" < {$files[$key-1]}":'') . " 2>&1 > {$files[$key]}";
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if (stripos(PHP_OS, 'darwin') !== false && stripos($cmd,'iconv') !== false) {
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// I know this looks DREADFULLY hackish, but the iconv in mac os x seems to have a return code of 1 for warnings
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// and I cannot figure out why, it's a very different version of iconv to most *nix versions, even seems to be a
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// different gnu project.
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// If someone can figure out a better way to do this, FEEL FREE :)
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// - Penny
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$cmd .= ' || true';
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}
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exec($cmd, $output, $return_var);
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if ($key) {
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unlink($files[$key-1]);
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}
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if ($return_var) { // we are dead!
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unlink($files[$key]);
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echo '<br />';
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print_simple_box_start('center','50%');
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print_string('dbmigrationdupfailed','admin',htmlspecialchars(implode("\n", $output)));
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print_simple_box_end();
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print_footer();
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exit;
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}
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}
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unlink(array_pop($files));
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}
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$migrationconfig = new object;
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$migrationconfig->name = 'dbmigration';
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$migrationconfig->value = '-1';
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insert_record('config',$migrationconfig); //process initiated
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//langs used, to help make recommendations on what lang packs to install
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$langsused = new object;
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$langsused->name = 'langsused';
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$langsused->value = '';
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insert_record('config',$langsused);
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} else {
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$crashdata = explode('##',$crash->value);
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$crash->table = $crashdata[0];
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$crash->field = $crashdata[1];
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$crash->record = $crashdata[2];
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notify("Resuming migration from: $crash->table / .$crash->field, Record: $crash->record");
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}
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/************************************************************************
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* Now we got all our tables in order *
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************************************************************************/
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foreach ($xmls as $xml) { ///foreach xml file, we must get a list of tables
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$dir = $xml['DBMIGRATION']['@']['type'];
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$dbtables = $xml['DBMIGRATION']['#']['TABLES'][0]['#']['TABLE']; //real db tables
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foreach ($dbtables as $dbtable) {
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$done++;
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print_progress($done, $tablestoconvert, 5, 1);
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$dbtablename = $dbtable['@']['name'];
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// exception handling for adodb_logsql
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// see bug 5003
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if ($dbtablename == 'adodb_logsql') {
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$prefix = '';
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} else {
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$prefix = $CFG->prefix;
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}
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if ($crash && ($dbtablename != $crash->table)) { //resuming from crash
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$done++; // need to update progress bar
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continue;
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}
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if ($debug) {
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print_heading("<br><b>Processsing db table ".$dbtablename.'...</b>');
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}
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/**********************************************************
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* This is the by pass structure. It allows us to process *
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* tables on row basis instead of column/field basis *
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* It relies on a single function in migrate2utf8.php *
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**********************************************************/
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/// first, check to see if there's a function for the whole table. By pass point (1)
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if (file_exists($CFG->dirroot.'/'.$dir.'/db/migrate2utf8.php')) {
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require_once($CFG->dirroot.'/'.$dir.'/db/migrate2utf8.php');
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// this is a function to process table on role basis, e.g. user table in moodorg
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$tablefunction = 'migrate2utf8_'.$dbtablename;
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}
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if ($CFG->dbtype=='mysql' && function_exists($tablefunction)) {
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$tablefunction($dbtable['#']['FIELDS'][0]['#']['FIELD'], $crash, $debug, $maxrecords, $done, $tablestoconvert); // execute it.
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} else {
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/******************************************************
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* No function for converting whole table, we proceed *
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******************************************************/
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if (!empty($dbtable['#']) && ($fields = $dbtable['#']['FIELDS'][0]['#']['FIELD']) and (!in_array($dbtablename, $ignoretables))) {
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$colnames = array();
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$coltypes = array(); //array to hold all column types for the table
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$collengths = array(); //array to hold all column lengths for the table
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$defaults = array(); //array to hold defaults, if any
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//reset holders
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$addindexarray = array();
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$adduniqueindexarray = array();
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$addprimaryarray = array();
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foreach ($fields as $field){
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//if in crash state, and field name is not the same as crash field name
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$fieldname = isset($field['@']['name'])?$field['@']['name']:"";
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$method = isset($field['@']['method'])?$field['@']['method']:"";
|
|
$type = isset($field['@']['type'])?$field['@']['type']:"";
|
|
$length = isset($field['@']['length'])?$field['@']['length']:"";
|
|
|
|
if ($crash && ($crash->field != $fieldname)) {
|
|
continue;
|
|
}
|
|
|
|
$dropindex = isset($field['@']['dropindex'])?$field['@']['dropindex']:"";
|
|
$addindex = isset($field['@']['addindex'])?$field['@']['addindex']:"";
|
|
$adduniqueindex = isset($field['@']['adduniqueindex'])?$field['@']['adduniqueindex']:"";
|
|
|
|
$dropprimary = isset($field['@']['dropprimary'])?$field['@']['dropprimary']:"";
|
|
$addprimary = isset($field['@']['addprimary'])?$field['@']['addprimary']:"";
|
|
$default = isset($field['@']['default'])?"'".$field['@']['default']."'":"''";
|
|
|
|
if ($fieldname != 'dummy') {
|
|
$colnames[] = $fieldname;
|
|
$coltypes[] = $type;
|
|
$collengths[]= $length;
|
|
}
|
|
|
|
if ($debug) {
|
|
echo "<br>--><b>processing db field ".$fieldname.'</b>';
|
|
echo "<br>---><b>method ".$method.'</b>';
|
|
}
|
|
|
|
|
|
if ($CFG->dbtype == 'mysql') {
|
|
|
|
/* Drop the index, because with index on, you can't change it to longblob */
|
|
|
|
if ($dropindex){ //drop index if index is varchar, text etc type
|
|
$SQL = 'ALTER TABLE '.$prefix.$dbtablename.' DROP INDEX '.$dropindex.';';
|
|
$SQL1 = 'ALTER TABLE '.$prefix.$dbtablename.' DROP INDEX '.$CFG->prefix.$dropindex.';'; // see bug 5205
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
execute_sql($SQL, false); // see bug 5205
|
|
execute_sql($SQL1, false); // see bug 5205
|
|
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
} else if ($dropprimary) { // drop primary key
|
|
$SQL = 'ALTER TABLE '.$prefix.$dbtablename.' DROP PRIMARY KEY;';
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
execute_sql($SQL, $debug);
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
}
|
|
|
|
/* Change to longblob, serves 2 purposes:
|
|
1. column loses encoding, so when we finally change it to unicode,
|
|
mysql does not do a double convertion
|
|
2. longblobs puts no limit (ok, not really but it's large enough)
|
|
to handle most of the problems such as in bug 5194
|
|
*/
|
|
|
|
$SQL = 'ALTER TABLE '.$prefix.$dbtablename;
|
|
$SQL.= ' CHANGE '.$fieldname.' '.$fieldname.' LONGBLOB';
|
|
|
|
/*
|
|
if ($length > 0) {
|
|
$SQL.='('.$length.') ';
|
|
}
|
|
$SQL .= ' CHARACTER SET binary NOT NULL DEFAULT '.$default.';';
|
|
*/
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
if ($fieldname != 'dummy') {
|
|
execute_sql($SQL, $debug);
|
|
}
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
|
|
}
|
|
|
|
$patterns[]='/RECORDID/'; //for preg_replace
|
|
$patterns[]='/\{\$CFG\-\>prefix\}/i'; //same here
|
|
|
|
if ($method == 'PLAIN_SQL_UPDATE') {
|
|
$sqldetectuser = $field['#']['SQL_DETECT_USER'][0]['#'];
|
|
$sqldetectcourse = $field['#']['SQL_DETECT_COURSE'][0]['#'];
|
|
}
|
|
else if ($method == 'PHP_FUNCTION') {
|
|
$phpfunction = 'migrate2utf8_'.$dbtablename.'_'.$fieldname;
|
|
}
|
|
|
|
///get the total number of records for this field
|
|
|
|
// could not use count_records because it addes prefix to adodb_logsql
|
|
$totalrecords = count_records_sql("select count(*) from {$prefix}$dbtablename");
|
|
$counter = 0;
|
|
$recordsetsize = 50;
|
|
|
|
if ($crash) { //if resuming from crash
|
|
//find the number of records with id smaller than the crash id
|
|
$indexSQL = 'SELECT COUNT(*) FROM '.$prefix.$dbtablename.' WHERE id < '.$crash->record;
|
|
$counter = count_records_sql($indexSQL);
|
|
}
|
|
|
|
if ($debug) {
|
|
echo "<br>Total number of records is ..".$totalrecords;
|
|
echo "<br/>Counter is $counter";
|
|
}
|
|
|
|
|
|
/**************************
|
|
* converting each record *
|
|
**************************/
|
|
while(($counter < $totalrecords) and ($fieldname !='dummy') and ($method!='NO_CONV')) { //while there is still something
|
|
$SQL = 'SELECT * FROM '.$prefix.$dbtablename.' ORDER BY id ASC '.sql_paging_limit($counter, $recordsetsize);
|
|
if ($records = get_records_sql($SQL)) {
|
|
foreach ($records as $record) {
|
|
|
|
//if we are up this far, either no crash, or crash with same table, field name.
|
|
if ($crash){
|
|
if ($crash->record != $record->id) { //might set to < just in case record is deleted
|
|
continue;
|
|
} else {
|
|
$crash = 0;
|
|
}
|
|
}
|
|
|
|
$migrationconfig = get_record('config','name','dbmigration');
|
|
$migrationconfig->name = 'dbmigration';
|
|
$migrationconfig->value = $dbtablename.'##'.$fieldname.'##'.$record->id;
|
|
update_record('config',$migrationconfig);
|
|
|
|
$replacements = array(); //manual refresh
|
|
$replacements[] = $record->id;
|
|
$replacements[] = $prefix;
|
|
|
|
if (!empty($record->{$fieldname})) { //only update if not empty
|
|
switch ($method){
|
|
case 'PLAIN_SQL_UPDATE': //use the 2 statements to update
|
|
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
|
|
//if global lang is set, we just use that
|
|
|
|
if ($globallang) {
|
|
$fromenc = $globallang;
|
|
} else {
|
|
$userid = get_record_sql(preg_replace($patterns, $replacements, $sqldetectuser));
|
|
$courseid = get_record_sql(preg_replace($patterns, $replacements, $sqldetectcourse));
|
|
|
|
$sitelang = $CFG->lang;
|
|
$courselang = get_course_lang(isset($courseid->course)?$courseid->course:1);
|
|
$userlang = get_user_lang(isset($userid->userid)?$userid->userid:1);
|
|
|
|
$fromenc = get_original_encoding($sitelang, $courselang, $userlang);
|
|
}
|
|
|
|
//only update if non utf8
|
|
if (($fromenc != 'utf-8') && ($fromenc != 'UTF-8')) {
|
|
$result = utfconvert($record->{$fieldname}, $fromenc);
|
|
$newrecord = new object;
|
|
$newrecord->id = $record->id;
|
|
$newrecord->{$fieldname} = $result;
|
|
migrate2utf8_update_record($dbtablename,$newrecord);
|
|
}
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
break;
|
|
|
|
case 'PHP_FUNCTION': //use the default php function to execute
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
require_once($CFG->dirroot.'/'.$dir.'/db/migrate2utf8.php');
|
|
$phpfunction($record->id);
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
break;
|
|
|
|
default: //no_conv, don't do anything ;-)
|
|
break;
|
|
}
|
|
}
|
|
$counter++;
|
|
if ($maxrecords) {
|
|
if ($processedrecords == $maxrecords) {
|
|
notify($maxrecords.' records processed. Migration Process halted');
|
|
print_continue('utfdbmigrate.php?confirm=1&maxrecords='.$maxrecords.'&sesskey='.sesskey());
|
|
print_footer();
|
|
die();
|
|
}
|
|
}
|
|
|
|
$processedrecords++;
|
|
//print some output once in a while
|
|
if (($processedrecords) % 1000 == 0) {
|
|
print_progress($done, $tablestoconvert, 5, 1,
|
|
'Processing: '.$dbtablename.'/'.$fieldname.' ');
|
|
}
|
|
}
|
|
}else {
|
|
if ($debug) {
|
|
notify('no records found!');
|
|
}
|
|
}
|
|
} //close the while loop
|
|
|
|
/********************
|
|
* Drop index here **
|
|
********************/
|
|
|
|
if ($CFG->dbtype == 'mysql') {
|
|
|
|
/*********************************
|
|
* Change column encoding 2 phase*
|
|
*********************************/
|
|
|
|
/*
|
|
$SQL = 'ALTER TABLE '.$CFG->prefix.$dbtablename;
|
|
$SQL.= ' CHANGE '.$fieldname.' '.$fieldname.' LONGTEXT';
|
|
// if ($length > 0) {
|
|
// $SQL.='('.$length.') ';
|
|
// }
|
|
$SQL .= ' CHARACTER SET binary NOT NULL DEFAULT '.$default.';';
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
if ($fieldname != 'dummy') {
|
|
execute_sql($SQL, $debug);
|
|
}
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}*/
|
|
//phase 2
|
|
$SQL = 'ALTER TABLE '.$prefix.$dbtablename;
|
|
$SQL.= ' CHANGE '.$fieldname.' '.$fieldname.' '.$type;
|
|
if ($length > 0) {
|
|
$SQL.='('.$length.') ';
|
|
}
|
|
$SQL.=' CHARACTER SET utf8 NOT NULL DEFAULT '.$default.';';
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
if ($fieldname != 'dummy') {
|
|
execute_sql($SQL, $debug);
|
|
}
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
/********************************************
|
|
* build an array to add index back together*
|
|
********************************************/
|
|
if ($addindex){
|
|
$addindexarray[] = $addindex;
|
|
} else if ($adduniqueindex) {
|
|
$adduniqueindexarray[] = $adduniqueindex;
|
|
} else if ($addprimary) {
|
|
$addprimaryarray[] = $addprimary;
|
|
}
|
|
|
|
} else {
|
|
|
|
//posgresql code here
|
|
//No we don't need to do anything here
|
|
|
|
}
|
|
|
|
}
|
|
|
|
/********************************
|
|
* Adding the index back *
|
|
********************************/
|
|
$alter = 0;
|
|
|
|
if ($CFG->dbtype=='mysql'){
|
|
$SQL = 'ALTER TABLE '.$prefix.$dbtablename;
|
|
|
|
if (!empty($addindexarray)) {
|
|
foreach ($addindexarray as $aidx){
|
|
$SQL .= ' ADD INDEX '.$aidx.',';
|
|
$alter++;
|
|
}
|
|
}
|
|
|
|
if (!empty($adduniqueindexarray)) {
|
|
foreach ($adduniqueindexarray as $auidx){
|
|
$SQL .= ' ADD UNIQUE INDEX '.$auidx.',';
|
|
$alter++;
|
|
}
|
|
}
|
|
|
|
if (!empty($addprimaryarray)) {
|
|
foreach ($addprimaryarray as $apm){
|
|
$SQL .= ' ADD PRIMARY KEY '.$apm.',';
|
|
$alter++;
|
|
}
|
|
}
|
|
|
|
$SQL = rtrim($SQL, ', ');
|
|
$SQL.=';';
|
|
|
|
} else {
|
|
///posgresql code here
|
|
///No we don't need to do anything here
|
|
|
|
}
|
|
|
|
if ($alter) {
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
execute_sql($SQL, $debug);
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
}
|
|
|
|
} //if there are fields
|
|
|
|
|
|
} /// Point 1 - bypass should end here.
|
|
|
|
|
|
/************************************
|
|
* now we modify the table encoding *
|
|
************************************/
|
|
if ($CFG->dbtype=='mysql'){
|
|
$SQL = 'ALTER TABLE '.$prefix.$dbtablename.' CHARACTER SET utf8';
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
execute_sql($SQL, $debug);
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
} else {
|
|
|
|
///posgresql code here
|
|
///No we don't need to do anything here
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($CFG->dbtype=='mysql') {
|
|
/*********************************
|
|
* now we modify the db encoding *
|
|
*********************************/
|
|
$SQL = 'ALTER DATABASE '.$CFG->dbname.' CHARACTER SET utf8';
|
|
execute_sql($SQL, $debug);
|
|
} else {
|
|
if (!is_postgres_utf8()) {
|
|
//This old database is now deprecated
|
|
set_config('migrated_to_new_db','1');
|
|
}
|
|
}
|
|
delete_records('config','name','dbmigration'); //bye bye
|
|
|
|
//These have to go!
|
|
if ($debug) {
|
|
$db->debug=999;
|
|
}
|
|
if ($CFG->dbtype == 'postgres7') {
|
|
$backup_db = $GLOBALS['db'];
|
|
$GLOBALS['db'] = &get_postgres_db();
|
|
}
|
|
execute_sql('TRUNCATE TABLE '.$CFG->prefix.'cache_text', $debug);
|
|
execute_sql('TRUNCATE TABLE '.$CFG->prefix.'cache_filters', $debug);
|
|
if ($CFG->dbtype == 'postgres7') {
|
|
$GLOBALS['db'] = $backup_db;
|
|
unset($backup_db);
|
|
}
|
|
if ($debug) {
|
|
$db->debug=0;
|
|
}
|
|
//update site language
|
|
$sitelanguage = get_record('config','name', 'lang');
|
|
if (strstr($sitelanguage->value, 'utf8')===false and $sitelanguage->value) {
|
|
$sitelanguage->value.='_utf8';
|
|
migrate2utf8_update_record('config',$sitelanguage);
|
|
}
|
|
|
|
//finish the javascript bar
|
|
$done = $tablestoconvert;
|
|
print_progress($done, $tablestoconvert, 5, 1);
|
|
|
|
//prints the list of langs used in this site
|
|
print_simple_box_start('center','50%');
|
|
echo '<div align="center">The following Language Packs are needed for your users and courses. Please install the following Language Packs:<br><b>';
|
|
$langsused = get_record('config','name', 'langsused');
|
|
$langs = explode (',',$langsused->value);
|
|
|
|
foreach ($langs as $lang) {
|
|
if (!empty($lang) and $lang != 'en_utf8') {
|
|
echo $lang.', ';
|
|
}
|
|
}
|
|
echo '</b><br/><a href="'.$CFG->wwwroot.'/'.$CFG->admin.'/langimport.php">Language Import Utility</a></div>';
|
|
print_simple_box_end();
|
|
delete_records('config','name','langsused');
|
|
|
|
//remove the cache file!
|
|
@unlink($CFG->dataroot.'/cache/languages');
|
|
|
|
// Regenerate some cached data
|
|
|
|
if ($CFG->dbtype == 'mysql') {
|
|
$db->Execute("SET NAMES 'utf8'");
|
|
} else if ($CFG->dbtype == 'postgres7') {
|
|
$db->Execute("SET NAMES 'utf8'");
|
|
}
|
|
|
|
rebuild_course_cache();
|
|
|
|
//set the final flag
|
|
migrate2utf8_set_config('unicodedb','true'); //this is the main flag for unicode db
|
|
|
|
//echo date("H:i:s");
|
|
}
|
|
|
|
|
|
/* returns the course lang
|
|
* @param int courseid
|
|
* @return string
|
|
*/
|
|
function get_course_lang($courseid) {
|
|
|
|
static $coursecache;
|
|
|
|
if (!isset($coursecache[$courseid])) {
|
|
if ($course = get_record('course','id',$courseid)){
|
|
$coursecache[$courseid] = $course->lang;
|
|
return $course->lang;
|
|
}
|
|
return false;
|
|
} else {
|
|
return $coursecache[$courseid];
|
|
}
|
|
}
|
|
|
|
/* returns the teacher's lang
|
|
* @param int courseid
|
|
* @return string
|
|
*/
|
|
function get_main_teacher_lang($courseid) {
|
|
//editting teacher > non editting teacher
|
|
global $CFG;
|
|
static $mainteachercache;
|
|
|
|
if (!isset($mainteachercache[$courseid])) {
|
|
$SQL = 'SELECT u.lang from '.$CFG->prefix.'user_teachers ut,
|
|
'.$CFG->prefix.'course c,
|
|
'.$CFG->prefix.'user u WHERE
|
|
c.id = ut.course AND ut.course = '.$courseid.' AND u.id = ut.userid ORDER BY ut.authority ASC';
|
|
|
|
if ($teacher = get_record_sql($SQL, true)) {
|
|
$mainteachercache[$courseid] = $teacher->lang;
|
|
return $teacher->lang;
|
|
} else {
|
|
$admin = get_admin();
|
|
$mainteachercache[$courseid] = $admin->lang;
|
|
return $admin->lang;
|
|
}
|
|
} else {
|
|
return $mainteachercache[$courseid];
|
|
}
|
|
}
|
|
|
|
function get_original_encoding($sitelang, $courselang, $userlang){
|
|
|
|
global $CFG, $enc;
|
|
|
|
$lang = '';
|
|
if ($courselang) {
|
|
$lang = $courselang;
|
|
}
|
|
else if ($userlang) {
|
|
$lang = $userlang;
|
|
}
|
|
else if ($sitelang) {
|
|
$lang = $sitelang;
|
|
}
|
|
else {
|
|
error ('no language found!');
|
|
}
|
|
|
|
if ($enc[$lang]) {
|
|
return $enc[$lang];
|
|
} else {
|
|
notify ('unknown language detected: '.$lang);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
/* returns the user's lang
|
|
* @param int userid
|
|
* @return string
|
|
*/
|
|
function get_user_lang($userid) {
|
|
|
|
static $usercache;
|
|
|
|
if (!isset($usercache[$userid])) {
|
|
if ($user = get_record('user','id',$userid)) {
|
|
$usercache[$userid] = $user->lang;
|
|
return $user->lang;
|
|
}
|
|
} else {
|
|
return $usercache[$userid];
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// a placeholder for now
|
|
function log_the_problem_somewhere() { //Eloy: Nice function, perhaps we could use it, perhpas no. :-)
|
|
global $CFG, $dbtablename, $fieldname, $record;
|
|
if ($CFG->debug>7) {
|
|
echo "<br />Problem converting: $dbtablename -> $fieldname -> {$record->id}!";
|
|
}
|
|
}
|
|
|
|
// only this function should be used during db migraton, because of addslashes at the end of the convertion
|
|
function utfconvert($string, $enc, $slash=true) {
|
|
global $textlib;
|
|
if ($result = $textlib->convert($string, $enc)) {
|
|
if ($slash) {
|
|
$result = addslashes($result);
|
|
}
|
|
}
|
|
return $result;
|
|
}
|
|
|
|
function validate_form(&$form, &$err) {
|
|
global $CFG;
|
|
|
|
$newdb = &ADONewConnection('postgres7');
|
|
error_reporting(0); // Hide errors
|
|
$dbconnected = $newdb->Connect($form->dbhost,$form->dbuser,$form->dbpass,$form->dbname);
|
|
error_reporting($CFG->debug); // Show errors
|
|
if (!$dbconnected) {
|
|
$err['dbconnect'] = get_string('dbmigrateconnecerror', 'admin');
|
|
return;
|
|
}
|
|
|
|
if (!is_postgres_utf8($newdb)) {
|
|
$encoding = $newdb->GetOne('SHOW server_encoding');
|
|
$err['dbconnect'] = get_string('dbmigrateencodingerror', 'admin', $encoding);
|
|
return;
|
|
}
|
|
|
|
if (!empty($form->pathtopgdump) && !is_executable($form->pathtopgdump)) {
|
|
$err['pathtopgdump'] = get_string('pathtopgdumpinvalid','admin');
|
|
return;
|
|
}
|
|
|
|
if (!empty($form->pathtopsql) && !is_executable($form->pathtopsql)) {
|
|
$err['pathtopsql'] = get_string('pathtopsqlinvalid','admin');
|
|
return;
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
function is_postgres_utf8($thedb = null) {
|
|
if ($thedb === null) {
|
|
$thedb = &$GLOBALS['db'];
|
|
}
|
|
|
|
$db_encoding_postgres = $thedb->GetOne('SHOW server_encoding');
|
|
if (strtoupper($db_encoding_postgres) == 'UNICODE' || strtoupper($db_encoding_postgres) == 'UTF8') {
|
|
return true;
|
|
} else {
|
|
return false;
|
|
}
|
|
}
|
|
|
|
function &get_postgres_db() {
|
|
static $postgres_db;
|
|
|
|
if (!$postgres_db) {
|
|
if (is_postgres_utf8()) {
|
|
$postgres_db = &$GLOBALS['db'];
|
|
} else {
|
|
$postgres_db = &ADONewConnection('postgres7');
|
|
$postgres_db->Connect($_SESSION['newpostgresdb']->dbhost,$_SESSION['newpostgresdb']->dbuser,$_SESSION['newpostgresdb']->dbpass,$_SESSION['newpostgresdb']->dbname);
|
|
}
|
|
}
|
|
|
|
return $postgres_db;
|
|
}
|
|
|
|
function is_postgres_setup() {
|
|
$postgres_db = &get_postgres_db();
|
|
|
|
return $GLOBALS['db']->MetaTables() == $postgres_db->MetaTables();
|
|
}
|
|
|
|
function migrate2utf8_update_record($table,$record) {
|
|
global $CFG;
|
|
|
|
if ($CFG->dbtype == 'mysql') {
|
|
update_record($table,$record);
|
|
} else {
|
|
$backup_db = $GLOBALS['db'];
|
|
$GLOBALS['db'] = &get_postgres_db();
|
|
global $in;
|
|
$in = true;
|
|
update_record($table,$record);
|
|
$GLOBALS['db'] = $backup_db;
|
|
}
|
|
}
|
|
|
|
function migrate2utf8_set_config($name, $value, $plugin=NULL) {
|
|
global $CFG;
|
|
if ($CFG->dbtype == 'mysql') {
|
|
set_config($name, $value, $plugin);
|
|
} else {
|
|
$backup_db = $GLOBALS['db'];
|
|
$GLOBALS['db'] = &get_postgres_db();
|
|
set_config($name, $value, $plugin);
|
|
$GLOBALS['db'] = $backup_db;
|
|
}
|
|
}
|
|
|
|
// this needs to print an error when a mod does not have a migrate2utf8.xml
|
|
function utf_get_xml ($mode=0) { // if mode is 1, do not perform check for script validity
|
|
global $CFG;
|
|
|
|
$xmls = array();
|
|
$noscript = 0; // we assume all mod and all blocks have migration scripts
|
|
|
|
/*****************************************************************************
|
|
* traverse order is mod->backup->block->block_plugin->enroll_plugin->global *
|
|
*****************************************************************************/
|
|
|
|
///mod
|
|
if (!$mods = get_list_of_plugins('mod')) {
|
|
error('No modules installed!');
|
|
}
|
|
|
|
foreach ($mods as $mod){
|
|
if (file_exists($CFG->dirroot.'/mod/'.$mod.'/db/migrate2utf8.xml')) {
|
|
$xmls[] = xmlize(file_get_contents($CFG->dirroot.'/mod/'.$mod.'/db/migrate2utf8.xml'));
|
|
} else if (!$mode) {
|
|
$noscript = 1;
|
|
notify('warning, there is no migration script detected for this module - '.$mod);
|
|
}
|
|
}
|
|
|
|
///Backups
|
|
$xmls[] = xmlize(file_get_contents($CFG->dirroot.'/backup/db/migrate2utf8.xml'));
|
|
|
|
///Blocks
|
|
$xmls[] = xmlize(file_get_contents($CFG->dirroot.'/blocks/db/migrate2utf8.xml'));
|
|
|
|
///Block Plugins
|
|
if (!$blocks = get_list_of_plugins('blocks')) {
|
|
//error('No blocks installed!'); //Eloy: Is this a cause to stop?
|
|
}
|
|
|
|
foreach ($blocks as $block){
|
|
if (file_exists($CFG->dirroot.'/blocks/'.$block.'/db/migrate2utf8.xml')) {
|
|
$xmls[] = xmlize(file_get_contents($CFG->dirroot.'/blocks/'.$block.'/db/migrate2utf8.xml'));
|
|
} else if (!$mode) {
|
|
if (file_exists($CFG->dirroot.'/blocks/'.$block.'/db/mysql.sql') && filesize($CFG->dirroot.'/blocks/'.$block.'/db/mysql.sql')) { // if no migration script, and have db script, we are in trouble
|
|
notify('warning, there is no migration script detected for this block - '.$block);
|
|
$noscript = 1;
|
|
}
|
|
}
|
|
}
|
|
|
|
///Enrol
|
|
|
|
if (!$enrols = get_list_of_plugins('enrol')) {
|
|
//error('No enrol installed!'); //Eloy: enrol, not blocks :-) Is this a cause to stop?
|
|
}
|
|
|
|
foreach ($enrols as $enrol){
|
|
if (file_exists($CFG->dirroot.'/enrol/'.$enrol.'/db/migrate2utf8.xml')) {
|
|
$xmls[] = xmlize(file_get_contents($CFG->dirroot.'/enrol/'.$enrol.'/db/migrate2utf8.xml'));
|
|
}
|
|
}
|
|
|
|
///Lastly, globals
|
|
|
|
$xmls[] = xmlize(file_get_contents($CFG->dirroot.'/lib/db/migrate2utf8.xml'));
|
|
|
|
if ($noscript) {
|
|
notify ('Some of your modules or Blocks do not have a migration script. It is very likely that these are contrib modules. If your Moodle site uses non-UTF8 language packs and non-en language packs, data inside these moduels or blocks will not be displayed correctly after the migration. Please proceed with caution.');
|
|
}
|
|
|
|
return $xmls;
|
|
|
|
}
|