Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/install/update-db-1.6.x-1.8.0.inc.php

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<?php
/*
==============================================================================
Dokeos - elearning and course management software
Copyright (c) 2004-2008 Dokeos SPRL
Copyright (c) 2003 Ghent University (UGent)
Copyright (c) 2001 Universite catholique de Louvain (UCL)
Copyright (c) various contributors
For a full list of contributors, see "credits.txt".
The full license can be read in "license.txt".
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
See the GNU General Public License for more details.
Contact address: Dokeos, rue du Corbeau, 108, B-1030 Brussels, Belgium
Mail: info@dokeos.com
==============================================================================
*/
/**
==============================================================================
* Update the Dokeos database from an older version
* Notice : This script has to be included by index.php or update_courses.php
*
* @package dokeos.install
* @todo
* - conditional changing of tables. Currently we execute for example
* ALTER TABLE `$dbNameForm`.`cours` instructions without checking wether this is necessary.
* - reorganise code into functions
* @todo use database library
==============================================================================
*/
//load helper functions
require_once 'install_upgrade.lib.php';
//remove memory and time limits as much as possible as this might be a long process...
if (function_exists('ini_set')) {
ini_set('memory_limit', -1);
ini_set('max_execution_time', 0);
} else {
error_log('Update-db script: could not change memory and time limits', 0);
}
/*
==============================================================================
MAIN CODE
==============================================================================
*/
//check if we come from index.php or update_courses.php - otherwise display error msg
if (defined('SYSTEM_INSTALLATION') || defined('DOKEOS_COURSE_UPDATE')) {
//check if the current Dokeos install is elligible for update
if (empty ($updateFromConfigFile) || !file_exists($_POST['updatePath'].$updateFromConfigFile) || !in_array(get_config_param('clarolineVersion'), $update_from_version_6)) {
echo '<strong>'.get_lang('Error').' !</strong> Dokeos '.implode('|', $updateFromVersion).' '.get_lang('HasNotBeenFound').'.<br /><br />
'.get_lang('PleasGoBackToStep1').'.
<p><button type="submit" class="back" name="step1" value="&lt; '.get_lang('Back').'">'.get_lang('Back').'</button></p>
</td></tr></table></form></body></html>';
exit ();
}
//get_config_param() comes from install_functions.inc.php and
//actually gets the param from
$_configuration['db_glue'] = get_config_param('dbGlu');
if ($singleDbForm) {
$_configuration['table_prefix'] = get_config_param('courseTablePrefix');
$_configuration['main_database'] = get_config_param('mainDbName');
$_configuration['db_prefix'] = get_config_param('dbNamePrefix');
}
$dbScormForm = preg_replace('/[^a-zA-Z0-9_\-]/', '', $dbScormForm);
if (!empty ($dbPrefixForm) && strpos($dbScormForm, $dbPrefixForm) !== 0) {
$dbScormForm = $dbPrefixForm.$dbScormForm;
}
if (empty ($dbScormForm) || $dbScormForm == 'mysql' || $dbScormForm == $dbPrefixForm) {
$dbScormForm = $dbPrefixForm.'scorm';
}
$res = @mysql_connect($dbHostForm, $dbUsernameForm, $dbPassForm);
//if error on connection to the database, show error and exit
if ($res === false) {
//$no = mysql_errno();
//$msg = mysql_error();
//echo '<hr />['.$no.'] - '.$msg.'<hr />';
echo get_lang('DBServerDoesntWorkOrLoginPassIsWrong').'.<br /><br />
'.get_lang('PleaseCheckTheseValues').' :<br /><br />
<strong>'.get_lang('DBHost').'</strong> : '.$dbHostForm.'<br />
<strong>'.get_lang('DBLogin').'</strong> : '.$dbUsernameForm.'<br />
<strong>'.get_lang('DBPassword').'</strong> : '.$dbPassForm.'<br /><br />
'.get_lang('PleaseGoBackToStep').' '. (defined('SYSTEM_INSTALLATION') ? '3' : '1').'.
<p><button type="submit" class="back" name="step'. (defined('SYSTEM_INSTALLATION') ? '3' : '1').'" value="&lt; '.get_lang('Back').'">'.get_lang('Back').'</button></p>
</td></tr></table></form></body></html>';
exit ();
}
@mysql_query("set session sql_mode='';"); // Disabling special SQL modes (MySQL 5)
$dblistres = mysql_list_dbs();
$dblist = array();
while ($row = mysql_fetch_object($dblistres)) {
$dblist[] = $row->Database;
}
/*
-----------------------------------------------------------
Normal upgrade procedure:
start by updating main, statistic, user databases
-----------------------------------------------------------
*/
//if this script has been included by index.php, not update_courses.php, so
// that we want to change the main databases as well...
$only_test = false;
$log = 0;
if (defined('SYSTEM_INSTALLATION')) {
if ($singleDbForm) {
if (empty($dbStatsForm)) $dbStatsForm = $dbNameForm;
if (empty($dbScormForm)) $dbScormForm = $dbNameForm;
if (empty($dbUserForm)) $dbUserForm = $dbNameForm;
}
/**
* Update the databases "pre" migration
*/
include '../lang/english/create_course.inc.php';
if ($languageForm != 'english') {
//languageForm has been escaped in index.php
include '../lang/'.$languageForm.'/create_course.inc.php';
}
//get the main queries list (m_q_list)
$m_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-pre.sql', 'main');
if (count($m_q_list) > 0) {
//now use the $m_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
if (strlen($dbNameForm) > 40) {
error_log('Database name '.$dbNameForm.' is too long, skipping', 0);
} elseif (!in_array($dbNameForm, $dblist)) {
error_log('Database '.$dbNameForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbNameForm);
foreach ($m_q_list as $query) {
if ($only_test) {
error_log("mysql_query($dbNameForm,$query)", 0);
} else {
$res = mysql_query($query);
if ($log) {
error_log("In $dbNameForm, executed: $query", 0);
}
}
}
}
}
//get the stats queries list (s_q_list)
$s_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-pre.sql', 'stats');
if (count($s_q_list) > 0) {
//now use the $s_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
if (strlen($dbStatsForm) > 40){
error_log('Database name '.$dbStatsForm.' is too long, skipping', 0);
} elseif (!in_array($dbStatsForm,$dblist)){
error_log('Database '.$dbStatsForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbStatsForm);
foreach($s_q_list as $query) {
if ($only_test) {
error_log("mysql_query($dbStatsForm,$query)", 0);
} else {
$res = mysql_query($query);
if ($log) {
error_log("In $dbStatsForm, executed: $query", 0);
}
}
}
}
}
//get the user queries list (u_q_list)
$u_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-pre.sql', 'user');
if (count($u_q_list) > 0) {
//now use the $u_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
if (strlen($dbUserForm) > 40) {
error_log('Database name '.$dbUserForm.' is too long, skipping', 0);
} elseif (!in_array($dbUserForm, $dblist)){
error_log('Database '.$dbUserForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbUserForm);
foreach ($u_q_list as $query){
if ($only_test){
error_log("mysql_query($dbUserForm,$query)", 0);
error_log("In $dbUserForm, executed: $query", 0);
} else {
$res = mysql_query($query);
}
}
}
}
//the SCORM database doesn't need a change in the pre-migrate part - ignore
}
/*
-----------------------------------------------------------
Update the Dokeos course databases
this part can be accessed in two ways:
- from the normal upgrade process
- from the script update_courses.php,
which is used to upgrade more than MAX_COURSE_TRANSFER courses
Every time this script is accessed, only
MAX_COURSE_TRANSFER courses are upgraded.
-----------------------------------------------------------
*/
$prefix = '';
if ($singleDbForm) {
$prefix = $_configuration['table_prefix'];
}
//get the courses databases queries list (c_q_list)
$c_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-pre.sql', 'course');
if (count($c_q_list) > 0) {
//get the courses list
if (strlen($dbNameForm) > 40) {
error_log('Database name '.$dbNameForm.' is too long, skipping', 0);
} elseif (!in_array($dbNameForm, $dblist)) {
error_log('Database '.$dbNameForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbNameForm);
$res = mysql_query("SELECT code,db_name,directory,course_language FROM course WHERE target_course_code IS NULL");
if ($res === false) { die('Error while querying the courses list in update_db-1.6.x-1.8.0.inc.php'); }
if (mysql_num_rows($res) > 0) {
$i = 0;
$list = array();
//while( ($i < MAX_COURSE_TRANSFER) && ($row = mysql_fetch_array($res)))
while($row = mysql_fetch_array($res)) {
$list[] = $row;
$i++;
}
foreach($list as $row_course) {
//now use the $c_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
if (!$singleDbForm) { //otherwise just use the main one
mysql_select_db($row_course['db_name']);
}
foreach($c_q_list as $query) {
if ($singleDbForm) { //otherwise just use the main one
$query = preg_replace('/^(UPDATE|ALTER TABLE|CREATE TABLE|DROP TABLE|INSERT INTO|DELETE FROM)\s+(\w*)(.*)$/', "$1 $prefix{$row_course['db_name']}_$2$3", $query);
}
if ($only_test) {
error_log("mysql_query(".$row_course['db_name'].",$query)", 0);
} else {
$res = mysql_query($query);
if ($log) {
error_log("In ".$row_course['db_name'].", executed: $query", 0);
}
}
}
//prepare reusable users list to avoid repetition of the SQL query, but only select
//users from the current course to avoid blowing the memory limit
$users_list = array();
$sql_uc = "SELECT u.user_id as ui, u.firstname as fn, u.lastname as ln " .
" FROM $dbNameForm.user u, $dbNameForm.course_rel_user cu " .
" WHERE cu.course_code = '".$row_course['code']."' " .
" AND u.user_id = cu.user_id";
$res_uc = mysql_query($sql_uc);
while($user_row = mysql_fetch_array($res_uc)) {
$users_list[$user_row['fn'].' '.$user_row['ln']] = $user_row['ui'];
}
//update course manually
//update group_category.forum_state ?
//update group_info.tutor_id (put it in group_tutor table?) ?
//update group_info.forum_state, forum_id ?
//update forum tables (migrate from bb_ tables to forum_ tables)
//migrate categories
$prefix_course = $prefix;
if ($singleDbForm) {
$prefix_course = $prefix.$row_course['db_name']."_";
}
$sql_orig = "SELECT * FROM ".$prefix_course."bb_categories";
$res_orig = mysql_query($sql_orig);
$order = 1;
while ($row = mysql_fetch_array($res_orig)) {
$myorder = (empty($row['cat_order']) ? $order : $row['cat_order']);
$sql = "INSERT INTO ".$prefix_course."forum_category " .
"(cat_id,cat_title,cat_comment,cat_order,locked) VALUES " .
"('".$row['cat_id']."','".mysql_real_escape_string($row['cat_title'])."','','".$myorder."',0)";
$res = mysql_query($sql);
$lastcatid = mysql_insert_id();
//error_log($sql,0);
$order ++;
//add item_property - forum categories were not put into item_properties before
$sql = "INSERT INTO ".$prefix_course."item_property (tool,insert_user_id,ref,lastedit_type,lastedit_user_id,visibility) " .
"VALUES ('forum_category','1','$lastcatid','ForumCategoryAdded','1','1')";
$res = mysql_query($sql);
//error_log($sql,0);
}
$sql_orig = "SELECT * FROM ".$prefix_course."bb_forums ORDER BY forum_last_post_id desc";
$res_orig = mysql_query($sql_orig);
$order = 1;
while ($row = mysql_fetch_array($res_orig)) {
$sql = "INSERT INTO ".$prefix_course."forum_forum " .
"(forum_id,forum_category,allow_edit,forum_comment," .
"forum_title," .
"forum_last_post, forum_threads," .
"locked, forum_posts, " .
"allow_new_threads, forum_order) VALUES " .
"('".$row['forum_id']."','".$row['cat_id']."',1,'".mysql_real_escape_string($row['forum_desc'])."'," .
"'".mysql_real_escape_string($row['forum_name'])."'," .
"'".$row['forum_last_post_id']."','".$row['forum_topics']."'," .
"0,'".$row['forum_posts']."'," .
"1,$order)";
//error_log($sql,0);
$res = mysql_query($sql);
$lastforumid = mysql_insert_id();
$order++;
//add item_property - forums were not put into item_properties before
$sql = "INSERT INTO ".$prefix_course."item_property (tool,insert_user_id,ref,lastedit_type,lastedit_user_id,visibility) " .
"VALUES ('forum','1','$lastforumid','ForumAdded','1','1')";
$res = mysql_query($sql);
//error_log($sql,0);
}
$sql_orig = "SELECT * FROM ".$prefix_course."bb_topics";
$res_orig = mysql_query($sql_orig);
while ($row = mysql_fetch_array($res_orig)) {
$name = $row['prenom'].' '.$row['nom'];
//check if user id is reusable
if ($row['topic_poster'] <= 1) {
if (isset($users_list[$name])) {
$poster_id = $users_list[$name];
} else {
$poster_id = $row['topic_poster'];
}
}
//convert time from varchar to datetime
$time = $row['topic_time'];
$name = mysql_real_escape_string($name);
$sql = "INSERT INTO ".$prefix_course."forum_thread " .
"(thread_id,forum_id,thread_poster_id," .
"locked,thread_replies,thread_sticky,thread_title," .
"thread_poster_name, thread_date, thread_last_post," .
"thread_views) VALUES " .
"('".$row['topic_id']."','".$row['forum_id']."','".$poster_id."'," .
"0,'".$row['topic_replies']."',0,'".mysql_real_escape_string($row['topic_title'])."'," .
"'$name','$time','".$row['topic_last_post_id']."'," .
"'".$row['topic_views']."')";
//error_log($sql,0);
$res = mysql_query($sql);
$lastthreadid = mysql_insert_id();
//add item_property - forum threads were not put into item_properties before
$sql = "INSERT INTO ".$prefix_course."item_property (tool,insert_user_id,ref,lastedit_type,lastedit_user_id,visibility) " .
"VALUES ('forum_thread','1','$lastthreadid','ForumThreadAdded','1','1')";
$res = mysql_query($sql);
//error_log($sql,0);
}
$sql_orig = "SELECT * FROM ".$prefix_course."bb_posts bp, ".$prefix_course."bb_posts_text bpt WHERE bp.post_id = bpt.post_id";
$res_orig = mysql_query($sql_orig);
while ($row = mysql_fetch_array($res_orig)) {
$name = $row['prenom'].' '.$row['nom'];
//check if user id is reusable
if ($row['poster_id'] <= 0 ) {
if (isset($users_list[$name])) {
$poster_id = $users_list[$name];
} else {
$poster_id = $row['poster_id'];
}
}
//convert time from varchar to datetime
$time = $row['post_time'];
$name = mysql_real_escape_string($name);
$sql = "INSERT INTO ".$prefix_course."forum_post " .
"(post_id,forum_id,thread_id," .
"poster_id,post_parent_id,visible, " .
"post_title,poster_name, post_text, " .
"post_date, post_notification) VALUES " .
"('".$row['post_id']."','".$row['forum_id']."','".$row['topic_id']."'," .
"'".$poster_id."','".$row['parent_id']."',1," .
"'".mysql_real_escape_string($row['post_title'])."','$name', '".mysql_real_escape_string($row['post_text'])."'," .
"'$time',0)";
//error_log($sql,0);
$res = mysql_query($sql);
$lastpostid = mysql_insert_id();
//add item_property - forum threads were not put into item_properties before
$sql = "INSERT INTO ".$prefix_course."item_property(tool,insert_user_id,ref,lastedit_type,lastedit_user_id,visibility) " .
"VALUES ('forum_post','1','$lastpostid','ForumPostAdded','1','1')";
$res = mysql_query($sql);
//error_log($sql,0);
}
unset($users_list);
$sql_orig = "SELECT id, tutor_id FROM ".$prefix_course."group_info";
$res_orig = mysql_query($sql_orig);
$order = 1;
while ($row = mysql_fetch_array($res_orig)) {
$sql = "INSERT INTO ".$prefix_course."group_rel_tutor " .
"(user_id,group_id) VALUES " .
"('".$row['tutor_id']."','".$row['id']."')";
$res = mysql_query($sql);
}
}
}
}
}
//load the old-scorm to new-scorm migration script
//TODO: deal with the fact that this should only act on MAX_COURSE_TRANSFER courses
if (!$only_test){
include('update-db-scorm-1.6.x-1.8.0.inc.php');
}
if (defined('SYSTEM_INSTALLATION')) {
if ($singleDbForm) {
if(empty($dbStatsForm)) $dbStatsForm = $dbNameForm;
if(empty($dbScormForm)) $dbScormForm = $dbNameForm;
if(empty($dbUserForm)) $dbUserForm = $dbNameForm;
}
//deal with migrate-db-1.6.x-1.8.0-post.sql
//get the main queries list (m_q_list)
$m_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-post.sql', 'main');
if (count($m_q_list) > 0) {
//now use the $m_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
if (strlen($dbNameForm) > 40) {
error_log('Database name '.$dbNameForm.' is too long, skipping', 0);
} elseif (!in_array($dbNameForm, $dblist)) {
error_log('Database '.$dbNameForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbNameForm);
foreach ($m_q_list as $query) {
if ($only_test){
error_log("mysql_query($dbNameForm,$query)", 0);
} else {
$res = mysql_query($query);
if ($log) {
error_log("In $dbNameForm, executed: $query", 0);
}
}
}
}
}
//get the stats queries list (s_q_list)
$s_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-post.sql', 'stats');
if (count($s_q_list) > 0) {
//now use the $s_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
if (strlen($dbStatsForm) > 40) {
error_log('Database name '.$dbStatsForm.' is too long, skipping', 0);
} elseif (!in_array($dbNameForm, $dblist)){
error_log('Database '.$dbNameForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbStatsForm);
foreach ($s_q_list as $query) {
if ($only_test) {
error_log("mysql_query($dbStatsForm,$query)", 0);
} else {
$res = mysql_query($query);
if ($log) {
error_log("In $dbStatsForm, executed: $query", 0);
}
}
}
}
}
//get the user queries list (u_q_list)
$u_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-post.sql', 'user');
if (count($u_q_list) > 0) {
//now use the $u_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
if (strlen($dbUserForm) > 40) {
error_log('Database name '.$dbUserForm.' is too long, skipping', 0);
} elseif (!in_array($dbUserForm,$dblist)) {
error_log('Database '.$dbUserForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbUserForm);
foreach ($u_q_list as $query) {
if ($only_test) {
error_log("mysql_query($dbUserForm,$query)", 0);
} else {
$res = mysql_query($query);
if ($log) {
error_log("In $dbUserForm, executed: $query", 0);
}
}
}
}
}
//the SCORM database should need a drop in the post-migrate part. However, we will keep these tables a bit more, just in case...
}
//get the courses databases queries list (c_q_list)
$c_q_list = get_sql_file_contents('migrate-db-1.6.x-1.8.0-post.sql', 'course');
if (count($c_q_list) > 0) {
//get the courses list
if (strlen($dbNameForm) > 40) {
error_log('Database name '.$dbNameForm.' is too long, skipping', 0);
} elseif (!in_array($dbNameForm,$dblist)) {
error_log('Database '.$dbNameForm.' was not found, skipping', 0);
} else {
mysql_select_db($dbNameForm);
$res = mysql_query("SELECT code,db_name,directory,course_language FROM course WHERE target_course_code IS NULL");
if ($res === false) { die('Error while querying the courses list in update_db-1.6.x-1.8.0.inc.php'); }
if (mysql_num_rows($res) > 0) {
$i = 0;
//while( ($i < MAX_COURSE_TRANSFER) && ($row = mysql_fetch_array($res)))
while ($row = mysql_fetch_array($res)) {
$list[] = $row;
$i++;
}
foreach ($list as $row) {
//now use the $c_q_list
/**
* We connect to the right DB first to make sure we can use the queries
* without a database name
*/
$prefix_course = $prefix;
if ($singleDbForm) {
$prefix_course = $prefix.$row['db_name']."_";
} else {
mysql_select_db($row['db_name']);
}
foreach($c_q_list as $query) {
if ($singleDbForm) { //otherwise just use the main one
$query = preg_replace('/^(UPDATE|ALTER TABLE|CREATE TABLE|DROP TABLE|INSERT INTO|DELETE FROM)\s+(\w*)(.*)$/',"$1 $prefix$2$3",$query);
}
if ($only_test) {
error_log("mysql_query(".$row['db_name'].",$query)", 0);
} else {
$res = mysql_query($query);
if ($log) {
error_log("In ".$row['db_name'].", executed: $query", 0);
}
}
}
}
}
}
}
// upgrade user categories sort
$table_user_categories = $dbUserForm.'.user_course_category';
$sql = 'SELECT * FROM '.$table_user_categories.' ORDER BY user_id, title';
$rs = Database::query($sql);
$sort = 0;
$old_user = 0;
while ($cat = Database::fetch_array($rs)) {
if ($old_user != $cat['user_id']) {
$old_user = $cat['user_id'];
$sort = 0;
}
$sort++;
$sql = 'UPDATE '.$table_user_categories.' SET
sort = '.intval($sort).'
WHERE id='.intval($cat['id']);
Database::query($sql);
}
} else {
echo 'You are not allowed here !';
}