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- <?php // $Id: $
- /* See license terms in /dokeos_license.txt */
- /**
- ==============================================================================
- * 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");
- require_once('../inc/lib/image.lib.php');
- $old_file_version = '1.8.6.1';
- $new_file_version = '1.8.6.2';
- //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('DOKEOS_INSTALL') || defined('DOKEOS_COURSE_UPDATE'))
- {
- //check if the current Dokeos install is elligible for update
- if (!file_exists('../inc/conf/configuration.php'))
- {
- echo '<b>'.get_lang('Error').' !</b> Dokeos '.implode('|', $updateFromVersion).' '.get_lang('HasNotBeenFound').'.<br><br>
- '.get_lang('PleasGoBackToStep1').'.
- <p><button type="submit" class="back" name="step1" value="< '.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 = eregi_replace('[^a-z0-9_-]', '', $dbScormForm);
- if (!empty ($dbPrefixForm) && !ereg('^'.$dbPrefixForm, $dbScormForm))
- {
- $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 />
- <b>'.get_lang('DBHost').'</b> : '.$dbHostForm.'<br />
- <b>'.get_lang('DBLogin').'</b> : '.$dbUsernameForm.'<br />
- <b>'.get_lang('DBPassword').'</b> : '.$dbPassForm.'<br /><br />
- '.get_lang('PleaseGoBackToStep').' '. (defined('DOKEOS_INSTALL') ? '3' : '1').'.
- <p><button type="submit" class="back" name="step'. (defined('DOKEOS_INSTALL') ? '3' : '1').'" value="< '.get_lang('Back').'">'.get_lang('Back').'</button></p>
- </td></tr></table></form></body></html>';
- exit ();
- }
- // The Dokeos system has not been designed to use special SQL modes that were introduced since MySQL 5
- @mysql_query("set session sql_mode='';");
- $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;
- $log = 0;
- if (defined('DOKEOS_INSTALL'))
- {
- if ($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{
- 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);
- }
- }
- }
-
-
- // 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";
-
- $res = mysql_query($sql);
- if ($res === false) {
- error_log('Could not query session course coaches table: '.mysql_error());
- } else {
- // For each coach found, add him as a course coach in the
- // session_rel_course_rel_user table
- while ($row = mysql_fetch_array($res)) {
-
- // chech if 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]}'";
- $rs = mysql_query($sql);
-
- if (mysql_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)";
- }
- $rs_coachs = mysql_query($sql_ins);
- if ($rs_coachs === false) {
- error_log('Could not move course coach to new table: '.mysql_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";
- $rs_chk_id1 = mysql_query($sql);
-
- if ($rs_chk_id1 === false) {
- error_log('Could not query settings_current ids table: '.mysql_error());
- } else {
- $i = 1;
- while ($row_id1 = mysql_fetch_array($rs_chk_id1)) {
- $id = $row_id1['id'];
- if ($i>1) {
- $sql_del = "DELETE FROM settings_current WHERE id = '$id'";
- mysql_query($sql_del);
- }
- $i++;
- }
- }
-
- $sql = "SELECT id FROM settings_current WHERE variable='show_teacher_data' ORDER BY id";
- $rs_chk_id2 = mysql_query($sql);
-
- if ($rs_chk_id2 === false) {
- error_log('Could not query settings_current ids table: '.mysql_error());
- } else {
- $i = 1;
- while ($row_id2 = mysql_fetch_array($rs_chk_id2)) {
- $id = $row_id2['id'];
- if ($i>1) {
- $sql_del = "DELETE FROM settings_current WHERE id = '$id'";
- mysql_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{
- 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)
- $s_q_list = get_sql_file_contents('migrate-db-'.$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{
- 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)
- $u_q_list = get_sql_file_contents('migrate-db-'.$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{
- 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 = 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 '.$dbNameForm.' was not found, skipping',0);
- }
- else
- {
- mysql_select_db($dbNameForm);
- $res = mysql_query("SELECT code,db_name,directory,course_language FROM course WHERE target_course_code IS NULL ORDER BY code");
- if($res===false){die('Error while querying the courses list in update_db.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);
- }
- }
- }
-
- // 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";
- $rs_sel = mysql_query($sql_sel);
-
- if ($rs_sel === false) {
- error_log('Could not query course_description ids table: '.mysql_error());
- } else {
- if (mysql_num_rows($rs_sel) > 0) {
- while ($row_ids = mysql_fetch_array($rs_sel)) {
- $description_id = $row_ids['id'];
- $sql_upd = "UPDATE $t_course_description SET description_type='$description_id' WHERE id='$description_id'";
- mysql_query($sql_upd);
- }
- }
- }
-
- }
- }
- }
- }
- }
- else
- {
- echo 'You are not allowed here !';
- }
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