mod/chat/db/upgrade.php

   1 <?php  //$Id$
   2
   3 // This file keeps track of upgrades to
   4 // the chat module
   5 //
   6 // Sometimes, changes between versions involve
   7 // alterations to database structures and other
   8 // major things that may break installations.
   9 //
  10 // The upgrade function in this file will attempt
  11 // to perform all the necessary actions to upgrade
  12 // your older installtion to the current version.
  13 //
  14 // If there's something it cannot do itself, it
  15 // will tell you what you need to do.
  16 //
  17 // The commands in here will all be database-neutral,
  18 // using the functions defined in lib/ddllib.php
  19
  20 function xmldb_chat_upgrade($oldversion=0) {
  21
  22     global $CFG, $THEME, $db;
  23
  24     $result = true;
  25
  26     if ($result && $oldversion < 2007012100) {
  27
  28     /// Changing precision of field lang on table chat_users to (30)
  29         $table = new XMLDBTable('chat_users');
  30         $field = new XMLDBField('lang');
  31         $field->setAttributes(XMLDB_TYPE_CHAR, '30', null, XMLDB_NOTNULL, null, null, null, null, 'course');
  32
  33     /// Launch change of precision for field lang
  34         $result = $result && change_field_precision($table, $field);
  35     }
  36
  37     return $result;
  38 }
  39
  40 ?>