moodle/mod/resource/db/upgrade.php

70 lines
2.3 KiB
PHP

<?php //$Id$
// This file keeps track of upgrades to
// the resource module
//
// Sometimes, changes between versions involve
// alterations to database structures and other
// major things that may break installations.
//
// The upgrade function in this file will attempt
// to perform all the necessary actions to upgrade
// your older installtion to the current version.
//
// If there's something it cannot do itself, it
// will tell you what you need to do.
//
// The commands in here will all be database-neutral,
// using the functions defined in lib/ddllib.php
function xmldb_resource_upgrade($oldversion=0) {
global $CFG, $THEME, $db;
$result = true;
/// And upgrade begins here. For each one, you'll need one
/// block of code similar to the next one. Please, delete
/// this comment lines once this file start handling proper
/// upgrade code.
/// if ($result && $oldversion < YYYYMMDD00) { //New version in version.php
/// $result = result of "/lib/ddllib.php" function calls
/// }
if ($result && $oldversion < 2007011700) {
//move format from options to reference field because it was colliding with course blocks setting
execute_sql("UPDATE {$CFG->prefix}resource SET reference=options WHERE type='text' AND reference='' AND options!='showblocks';");
//ignore result
}
if ($result && $oldversion < 2007012000) {
/// Changing nullability of field summary on table resource to null
$table = new XMLDBTable('resource');
$field = new XMLDBField('summary');
$field->setAttributes(XMLDB_TYPE_TEXT, 'small', null, null, null, null, null, null, 'reference');
/// Launch change of nullability for field summary
$result = $result && change_field_notnull($table, $field);
}
if ($result && $oldversion < 2007012001) {
if ($CFG->dbfamily == 'mysql') { // Only needed under mysql. The rest are long texts since ages
/// Changing precision of field alltext on table resource to (medium)
$table = new XMLDBTable('resource');
$field = new XMLDBField('alltext');
$field->setAttributes(XMLDB_TYPE_TEXT, 'medium', null, XMLDB_NOTNULL, null, null, null, null, 'summary');
/// Launch change of precision for field alltext
$result = $result && change_field_precision($table, $field);
}
}
return $result;
}
?>