admin/multilangupgrade.php

   1 <?php /// $Id$
   2       /// Search and replace strings throughout all texts in the whole database
   3
   4 require_once('../config.php');
   5 require_once($CFG->dirroot.'/course/lib.php');
   6 require_once($CFG->libdir.'/adminlib.php');
   7
   8 admin_externalpage_setup('multilangupgrade');
   9
  10 $go = optional_param('go', 0, PARAM_BOOL);
  11
  12 ###################################################################
  13 admin_externalpage_print_header();
  14
  15 print_heading(get_string('multilangupgrade', 'admin'));
  16
  17 $strmultilangupgrade = get_String('multilangupgradeinfo', 'admin');
  18
  19 if (!$go or !data_submitted() or !confirm_sesskey()) {   /// Print a form
  20     $optionsyes = array('go'=>1, 'sesskey'=>sesskey());
  21     notice_yesno($strmultilangupgrade, 'multilangupgrade.php', 'index.php', $optionsyes, null, 'post', 'get');
  22     admin_externalpage_print_footer();
  23     die;
  24 }
  25
  26
  27 if (!$tables = $db->Metatables() ) {    // No tables yet at all.
  28     error("no tables");
  29 }
  30
  31 print_simple_box_start('center');
  32
  33 /// Turn off time limits, sometimes upgrades can be slow.
  34
  35 @set_time_limit(0);
  36 @ob_implicit_flush(true);
  37 while(@ob_end_flush());
  38
  39 echo '<strong>Progress:</strong>';
  40 $i = 0;
  41 $skiptables = array($CFG->prefix.'config', $CFG->prefix.'user_students', $CFG->prefix.'user_teachers');//, $CFG->prefix.'sessions2');
  42
  43 foreach ($tables as $table) {
  44     if (($CFG->prefix && strpos($table, $CFG->prefix) !== 0)
  45       or strpos($table, $CFG->prefix.'pma') === 0) { // Not our tables
  46         continue;
  47     }
  48     if (in_array($table, $skiptables)) { // Don't process these
  49         continue;
  50     }
  51     if ($columns = $db->MetaColumns($table, false)) {
  52         if (!array_key_exists('id', $columns) and !array_key_exists('ID', $columns)) {
  53             continue; // moodle tables have id
  54         }
  55         foreach ($columns as $column => $data) {
  56             if (in_array($data->type, array('text','mediumtext','longtext','varchar'))) {  // Text stuff only
  57                 // first find candidate records
  58                 $rs = get_recordset_sql("SELECT id, $column FROM $table WHERE $column LIKE '%</lang>%' OR $column LIKE '%<span lang=%'");
  59                 if ($rs and $rs->RecordCount() > 0) {
  60                     while (!$rs->EOF) {
  61                         $text = $rs->fields[$column];
  62                         $id   = $rs->fields['id'];
  63
  64                         if ($i % 600 == 0) {
  65                             echo '<br />';
  66                         }
  67                         if ($i % 10 == 0) {
  68                             echo '.';
  69                         }
  70                         $i++;
  71                         $rs->MoveNext();
  72
  73                         if (empty($text) or is_numeric($text)) {
  74                             continue; // nothing to do
  75                         }
  76
  77                         $search = '/(<(?:lang|span) lang="[a-zA-Z0-9_-]*".*?>.+?<\/(?:lang|span)>)(\s*<(?:lang|span) lang="[a-zA-Z0-9_-]*".*?>.+?<\/(?:lang|span)>)+/is';
  78                         $newtext = preg_replace_callback($search, 'multilangupgrade_impl', $text);
  79
  80                         if (is_null($newtext)) {
  81                             continue; // regex error
  82                         }
  83
  84                         if ($newtext != $text) {
  85                             $newtext = addslashes($newtext);
  86                             execute_sql("UPDATE $table SET $column='$newtext' WHERE id=$id", false);
  87                         }
  88                     }
  89                 }
  90             }
  91         }
  92     }
  93 }
  94
  95 // set conversion flag - switches to new plugin automatically
  96 set_config('filter_multilang_converted', 1);
  97
  98 print_simple_box_end();
  99
 100 /// Rebuild course cache which might be incorrect now
 101 notify('Rebuilding course cache...', 'notifysuccess');
 102 rebuild_course_cache();
 103 notify('...finished', 'notifysuccess');
 104
 105 print_continue('index.php');
 106
 107 admin_externalpage_print_footer();
 108 die;
 109
 110
 111 function multilangupgrade_impl($langblock) {
 112     $searchtosplit = '/<(?:lang|span) lang="([a-zA-Z0-9_-]*)".*?>(.+?)<\/(?:lang|span)>/is';
 113     preg_match_all($searchtosplit, $langblock[0], $rawlanglist);
 114     $return = '';
 115     foreach ($rawlanglist[1] as $index=>$lang) {
 116         $return .= '<span lang="'.$lang.'" class="multilang">'.$rawlanglist[2][$index].'</span>';
 117     }
 118     return $return;
 119 }
 120 ?>