moodle/mod/chat/db/upgrade.php
2010-07-16 09:02:59 +00:00

106 lines
4.0 KiB
PHP

<?php
// This file keeps track of upgrades to
// the chat 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 installation 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 methods of database_manager class
//
// Please do not forget to use upgrade_set_timeout()
// before any action that may take longer time to finish.
function xmldb_chat_upgrade($oldversion) {
global $CFG, $DB;
$dbman = $DB->get_manager();
//===== 1.9.0 upgrade line ======//
if ($oldversion < 2010050100) {
/// Changing precision of field ip on table chat_users to (45)
$table = new xmldb_table('chat_users');
$field = new xmldb_field('ip', XMLDB_TYPE_CHAR, '45', null, XMLDB_NOTNULL, null, null, 'version');
/// Launch change of precision for field ip
$dbman->change_field_precision($table, $field);
/// chat savepoint reached
upgrade_mod_savepoint(true, 2010050100, 'chat');
}
if ($oldversion < 2010050101) {
/// Define field introformat to be added to chat
$table = new xmldb_table('chat');
$field = new xmldb_field('introformat', XMLDB_TYPE_INTEGER, '4', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0', 'intro');
/// Launch add field introformat
if (!$dbman->field_exists($table, $field)) {
$dbman->add_field($table, $field);
}
// conditionally migrate to html format in intro
if ($CFG->texteditors !== 'textarea') {
$rs = $DB->get_recordset('chat', array('introformat'=>FORMAT_MOODLE), '', 'id,intro,introformat');
foreach ($rs as $ch) {
$ch->intro = text_to_html($ch->intro, false, false, true);
$ch->introformat = FORMAT_HTML;
$DB->update_record('chat', $ch);
upgrade_set_timeout();
}
$rs->close();
}
/// chat savepoint reached
upgrade_mod_savepoint(true, 2010050101, 'chat');
}
/// Creating chat_messages_current to hold latest chat messages
if ($oldversion < 2010050102) {
/// Define table chat_messages_current to be created
$table = new xmldb_table('chat_messages_current');
/// Adding fields to table chat_messages_current
$table->add_field('id', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, XMLDB_SEQUENCE, null);
$table->add_field('chatid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
$table->add_field('userid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
$table->add_field('groupid', XMLDB_TYPE_INTEGER, '10', null, XMLDB_NOTNULL, null, '0');
$table->add_field('system', XMLDB_TYPE_INTEGER, '1', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
$table->add_field('message', XMLDB_TYPE_TEXT, 'small', null, XMLDB_NOTNULL, null, null);
$table->add_field('timestamp', XMLDB_TYPE_INTEGER, '10', XMLDB_UNSIGNED, XMLDB_NOTNULL, null, '0');
/// Adding keys to table chat_messages_current
$table->add_key('primary', XMLDB_KEY_PRIMARY, array('id'));
$table->add_key('chatid', XMLDB_KEY_FOREIGN, array('chatid'), 'chat', array('id'));
/// Adding indexes to table chat_messages_current
$table->add_index('userid', XMLDB_INDEX_NOTUNIQUE, array('userid'));
$table->add_index('groupid', XMLDB_INDEX_NOTUNIQUE, array('groupid'));
$table->add_index('timestamp-chatid', XMLDB_INDEX_NOTUNIQUE, array('timestamp', 'chatid'));
/// create table for chat_messages_current
if (!$dbman->table_exists($table)) {
$dbman->create_table($table);
}
/// chat savepoint reached
upgrade_mod_savepoint(true, 2010050102, 'chat');
}
return true;
}