docs/install/include/ustep2.php

   1 <?php
   2 /************************************************************************/
   3 /* ATutor                                                                                                                               */
   4 /************************************************************************/
   5 /* Copyright (c) 2002-2010                                              */
   6 /* http://atutor.ca                                                     */
   7 /* This program is free software. You can redistribute it and/or        */
   8 /* modify it under the terms of the GNU General Public License          */
   9 /* as published by the Free Software Foundation.                        */
  10 /************************************************************************/
  11 // $Id$
  12
  13 ignore_user_abort(true);
  14 @set_time_limit(0);
  15
  16 if (!defined('AT_INCLUDE_PATH')) { exit; }
  17
  18 function update_one_ver($up_file) {
  19         global $progress;
  20         $update_file = implode('_',$up_file);
  21         queryFromFile('db/'.$update_file.'sql');
  22         //$progress[] = 'Successful update from version '.$up_file[2].' to '.$up_file[4];
  23         return $up_file[4];
  24 }
  25
  26 $_POST['db_login'] = urldecode($_POST['db_login']);
  27 $_POST['db_password'] = urldecode($_POST['db_password']);
  28
  29         unset($errors);
  30
  31         //check DB & table connection
  32
  33         $db = @mysql_connect($_POST['db_host'] . ':' . $_POST['db_port'], $_POST['db_login'], urldecode($_POST['db_password']));
  34
  35         if (!$db) {
  36                 $error_no = mysql_errno();
  37                 if ($error_no == 2005) {
  38                         $errors[] = 'Unable to connect to database server. Database with hostname '.$_POST['db_host'].' not found.';
  39                 } else {
  40                         $errors[] = 'Unable to connect to database server. Wrong username/password combination.';
  41                 }
  42         } else {
  43                 if (!mysql_select_db($_POST['db_name'], $db)) {
  44                         $errors[] = 'Unable to connect to database <b>'.$_POST['db_name'].'</b>.';
  45                 }
  46
  47                 $sql = "SELECT VERSION() AS version";
  48                 $result = mysql_query($sql, $db);
  49                 $row = mysql_fetch_assoc($result);
  50                 if (version_compare($row['version'], '4.0.2', '>=') === FALSE) {
  51                         $errors[] = 'MySQL version '.$row['version'].' was detected. ATutor requires version 4.0.2 or later.';
  52                 }
  53
  54                 if (!$errors) {
  55                         $progress[] = 'Connected to database <b>'.$_POST['db_name'].'</b> successfully.';
  56                         unset($errors);
  57
  58                         //Save all the course primary language into session variables iff it has not been set.
  59                         if (!isset($_SESSION['course_info'])){
  60                                 $sql = "SELECT a.course_id, a.title, l.language_code, l.char_set FROM ".$_POST['tb_prefix']."courses a left join ".$_POST['tb_prefix']."languages l ON l.language_code = a.primary_language";
  61                                 $result = mysql_query($sql, $db);
  62                                 while ($row = mysql_fetch_assoc($result)){
  63                                         $_SESSION['course_info'][$row['course_id']] = array('char_set'=>$row['char_set'], 'language_code'=>$row['language_code']);
  64                                 }
  65                         }
  66
  67                         $sql = "DELETE FROM ".$_POST['tb_prefix']."language_text WHERE `variable`<>'_c_template' AND `variable`<>'_c_msgs'";
  68                         @mysql_query($sql, $db);
  69
  70                         $sql = "DELETE FROM ".$_POST['tb_prefix']."languages WHERE language_code<>'en'";
  71                         @mysql_query($sql, $db);
  72
  73                         //get list of all update scripts minus sql extension
  74                         $files = scandir('db');
  75                         foreach ($files as $file) {
  76                                 if(count($file = explode('_',$file))==5) {
  77                                         $file[4] = substr($file[4],0,-3);
  78                                         $update_files[$file[2]] = $file;
  79                                 }
  80                         }
  81
  82                         $curr_ver = $_POST['old_version'];
  83                         ksort($update_files);
  84                         foreach ($update_files as $up_file) {
  85                                 if(version_compare($curr_ver, $up_file[4], '<')) {
  86                                         update_one_ver($up_file);
  87                                 }
  88                         }
  89
  90                         /* reset all the accounts to English */
  91                         $sql = "UPDATE ".$_POST['tb_prefix']."members SET language='en', creation_date=creation_date, last_login=last_login";
  92                         @mysql_query($sql, $db);
  93
  94                         /* set all the courses to 'en' as primary language if empty. added 1.4.1 */
  95                         $sql = "UPDATE ".$_POST['tb_prefix']."courses SET primary_language='en' WHERE primary_language=''";
  96                         @mysql_query($sql, $db);
  97
  98                         queryFromFile('db/atutor_language_text.sql');
  99
 100                         if (!$errors) {
 101                                 print_progress($step);
 102
 103                                 unset($_POST['submit']);
 104                                 store_steps(1);
 105                                 print_feedback($progress);
 106
 107                                 echo '<form action="'.$_SERVER['PHP_SELF'].'" method="post" name="form">
 108                                 <input type="hidden" name="step" value="3" />
 109                                 <input type="hidden" name="upgrade_action" value="true" />';
 110                                 echo '<input type="hidden" name="db_login" value="'.urlencode($_POST['db_login']).'" />';
 111                                 echo '<input type="hidden" name="db_password" value="'.urlencode($_POST['db_password']).'" />';
 112                                 echo '<input type="hidden" name="db_host" value="'.$_POST['db_host'].'" />';
 113                                 echo '<input type="hidden" name="db_name" value="'.$_POST['db_name'].'" />';
 114                                 echo '<input type="hidden" name="db_port" value="'.$_POST['db_port'].'" />';
 115                                 echo '<input type="hidden" name="tb_prefix" value="'.$_POST['tb_prefix'].'" />';
 116                                 echo '<input type="hidden" name="old_version" value="'.$_POST['old_version'].'" />';
 117                                 echo '<input type="hidden" name="new_version" value="'.$_POST['new_version'].'" />';
 118                                 print_hidden(2);
 119                                 echo '<p align="center"><input type="submit" class="button" value=" Next &raquo; " name="submit" /></p></form>';
 120                                 return;
 121                         }
 122                 }
 123         }
 124
 125         print_progress($step);
 126
 127         unset($_POST['submit']);
 128         if (isset($progress)) {
 129                 print_feedback($progress);
 130         }
 131
 132         if (isset($errors)) {
 133                 print_errors($errors);
 134         }
 135
 136
 137         echo '<form action="'.$_SERVER['PHP_SELF'].'" method="post" name="form">
 138         <input type="hidden" name="step" value="2" />';
 139         store_steps(1);
 140         print_hidden(2);
 141
 142         if ($found_lang) {
 143 ?>
 144 <table width="60%" class="tableborder" cellspacing="0" cellpadding="1" border="0" align="center">
 145 <tr>
 146         <td colspan="2" class="row1"><p><small>All installed language packs and changes made to the default English language will be deleted. You will have to re-install any language packs by downloading the latest versions from ATutor.ca. Some language packs may not currently be available.</small></p></td>
 147 </tr>
 148 <tr>
 149         <td class="row1"><small><b><label for="dir">Continue with the upgrade?</label></b></small></td>
 150                 <td class="row1" valign="middle" nowrap="nowrap"><input type="radio" name="override" value="1" id="c2" /><label for="c2">Yes, Continue</label>, <input type="radio" name="override" value="0" id="c1" checked="checked" /><label for="c1">No, Cancel</label></td>
 151 </tr>
 152 </table><br />
 153         <?php
 154         }
 155
 156         echo '<input type="hidden" name="db_login" value="'.urlencode($_POST['db_login']).'" />';
 157         echo '<input type="hidden" name="db_password" value="'.urlencode($_POST['db_password']).'" />';
 158         echo '<input type="hidden" name="db_host" value="'.$_POST['db_host'].'" />';
 159         echo '<input type="hidden" name="db_name" value="'.$_POST['db_name'].'" />';
 160         echo '<input type="hidden" name="db_port" value="'.$_POST['db_port'].'" />';
 161         echo '<input type="hidden" name="tb_prefix" value="'.$_POST['tb_prefix'].'" />';
 162         echo '<input type="hidden" name="old_version" value="'.$_POST['old_version'].'" />';
 163         echo '<input type="hidden" name="new_version" value="'.$_POST['new_version'].'" />';
 164
 165         echo '<p align="center"><input type="submit" class="button" value=" Retry " name="submit" /></p></form>';
 166         return;
 167 ?>