Chamilo is a learning management system focused on ease of use and accessibility
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chamilo-lms/main/install/update-db-1.8.6.1-1.8.6.2.i...

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<?php
/* For licensing terms, see /license.txt */
/**
==============================================================================
* Chamilo LMS
*
* Update the Chamilo database from an older Dokeos version
* Notice : This script has to be included by index.php
* or update_courses.php (deprecated).
*
* @package chamilo.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
==============================================================================
*/
$old_file_version = '1.8.6.1';
$new_file_version = '1.8.6.2';
/*
==============================================================================
MAIN CODE
==============================================================================
*/
// Check if we come from index.php or update_courses.php - otherwise display error msg
if (defined('SYSTEM_INSTALLATION')) {
// Check if the current Dokeos install is eligible for update
if (!file_exists('../inc/conf/configuration.php')) {
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 ();
}
$_configuration['db_glue'] = get_config_param('dbGlu');
if ($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';
}
/*
-----------------------------------------------------------
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) {
$dbStatsForm = $dbNameForm;
$dbScormForm = $dbNameForm;
$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)
$m_q_list = get_sql_file_contents('migrate-db-'.$old_file_version.'-'.$new_file_version.'-pre.sql', 'main');
if (count($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 {
Database::select_db($dbNameForm);
foreach ($m_q_list as $query) {
if ($only_test) {
error_log("Database::query($dbNameForm,$query)", 0);
} else {
$res = Database::query($query);
if ($log) {
error_log("In $dbNameForm, executed: $query", 0);
}
}
}
// There might now be multiple course coaches. This implies
// moving the previous course coach elements from the
// session_rel_course table to the session_rel_course_rel_user
// table with status 2
// Select all the current course coaches in sessions
$sql = "SELECT id_session, course_code, id_coach
FROM session_rel_course
ORDER BY id_session, course_code";
$res = Database::query($sql);
if ($res === false) {
error_log('Could not query session course coaches table: '.Database::error());
} else {
// For each coach found, add him as a course coach in the
// session_rel_course_rel_user table
while ($row = Database::fetch_array($res)) {
// Check whether coach is a student
$sql = "SELECT 1 FROM session_rel_course_rel_user
WHERE id_session='{$row[id_session]}' AND course_code='{$row[course_code]}' AND id_user='{$row[id_coach]}'";
$rs = Database::query($sql);
if (Database::num_rows($rs) > 0) {
$sql_upd = "UPDATE session_rel_course_rel_user SET status=2
WHERE id_session='{$row[id_session]}' AND course_code='{$row[course_code]}' AND id_user='{$row[id_coach]}'";
} else {
$sql_ins = "INSERT INTO session_rel_course_rel_user(id_session, course_code, id_user, status)
VALUES ('{$row[id_session]}','{$row[course_code]}','{$row[id_coach]}',2)";
}
$rs_coachs = Database::query($sql_ins);
if ($rs_coachs === false) {
error_log('Could not move course coach to new table: '.Database::error());
}
}
}
// Remove duplicated rows for 'show_tutor_data' AND 'show_teacher_data' into settings_current table
$sql = "SELECT id FROM settings_current WHERE variable='show_tutor_data' ORDER BY id";
$rs_chk_id1 = Database::query($sql);
if ($rs_chk_id1 === false) {
error_log('Could not query settings_current ids table: '.Database::error());
} else {
$i = 1;
while ($row_id1 = Database::fetch_array($rs_chk_id1)) {
$id = $row_id1['id'];
if ($i > 1) {
$sql_del = "DELETE FROM settings_current WHERE id = '$id'";
Database::query($sql_del);
}
$i++;
}
}
$sql = "SELECT id FROM settings_current WHERE variable='show_teacher_data' ORDER BY id";
$rs_chk_id2 = Database::query($sql);
if ($rs_chk_id2 === false) {
error_log('Could not query settings_current ids table: '.Database::error());
} else {
$i = 1;
while ($row_id2 = Database::fetch_array($rs_chk_id2)) {
$id = $row_id2['id'];
if ($i > 1) {
$sql_del = "DELETE FROM settings_current WHERE id = '$id'";
Database::query($sql_del);
}
$i++;
}
}
}
}
// Now clean the deprecated id_coach field from the session_rel_course table
$m_q_list = get_sql_file_contents('migrate-db-'.$old_file_version.'-'.$new_file_version.'-post.sql', 'main');
if (count($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 {
Database::select_db($dbNameForm);
foreach ($m_q_list as $query) {
if ($only_test) {
error_log("Database::query($dbNameForm,$query)", 0);
} else {
$res = Database::query($query);
if ($log) {
error_log("In $dbNameForm, executed: $query", 0);
}
}
}
}
}
// Get the stats queries list (s_q_list)
$s_q_list = get_sql_file_contents('migrate-db-'.$old_file_version.'-'.$new_file_version.'-pre.sql', 'stats');
if (count($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 {
Database::select_db($dbStatsForm);
foreach ($s_q_list as $query) {
if ($only_test) {
error_log("Database::query($dbStatsForm,$query)", 0);
} else {
$res = Database::query($query);
if ($log) {
error_log("In $dbStatsForm, executed: $query", 0);
}
}
}
}
}
// Get the user queries list (u_q_list)
$u_q_list = get_sql_file_contents('migrate-db-'.$old_file_version.'-'.$new_file_version.'-pre.sql', 'user');
if (count($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 {
Database::select_db($dbUserForm);
foreach ($u_q_list as $query) {
if ($only_test){
error_log("Database::query($dbUserForm,$query)", 0);
error_log("In $dbUserForm, executed: $query", 0);
} else {
$res = Database::query($query);
}
}
}
}
// The SCORM database doesn't need a change in the pre-migrate part - ignore
}
$prefix = '';
if ($singleDbForm) {
$prefix = get_config_param ('table_prefix');
}
// Get the courses databases queries list (c_q_list)
$c_q_list = get_sql_file_contents('migrate-db-'.$old_file_version.'-'.$new_file_version.'-pre.sql', 'course');
if (count($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 {
Database::select_db($dbNameForm);
$res = Database::query("SELECT code,db_name,directory,course_language FROM course WHERE target_course_code IS NULL ORDER BY code");
if ($res === false) { die('Error while querying the courses list in update_db-1.8.6.1-1.8.6.2.inc.php'); }
if (Database::num_rows($res) > 0) {
$i = 0;
$list = array();
while ($row = Database::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
Database::select_db($row_course['db_name']);
}
foreach ($c_q_list as $query) {
if ($singleDbForm) {
$query = preg_replace('/^(UPDATE|ALTER TABLE|CREATE TABLE|DROP TABLE|INSERT INTO|DELETE FROM)\s+(\w*)(.*)$/', "$1 $prefix{$row_course['db_name']}_$2$3", $query);
}
if ($only_test) {
error_log("Database::query(".$row_course['db_name'].",$query)", 0);
} else {
$res = Database::query($query);
if ($log) {
error_log("In ".$row_course['db_name'].", executed: $query", 0);
}
}
}
// Fill description type into course_description table
$t_course_description = $row_course['db_name'].".course_description";
if ($singleDbForm) {
$t_course_description = "$prefix{$row_course['db_name']}_course_description";
}
// Get all ids and update description_type field with them from course_description table
$sql_sel = "SELECT id FROM $t_course_description";
$rs_sel = Database::query($sql_sel);
if ($rs_sel === false) {
error_log('Could not query course_description ids table: '.Database::error());
} else {
if (Database::num_rows($rs_sel) > 0) {
while ($row_ids = Database::fetch_array($rs_sel)) {
$description_id = $row_ids['id'];
$sql_upd = "UPDATE $t_course_description SET description_type='$description_id' WHERE id='$description_id'";
Database::query($sql_upd);
}
}
}
}
}
}
}
} else {
echo 'You are not allowed here !';
}