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<?php // $Id: mysql.php,v 1.13 2006/04/24 08:43:29 vyshane Exp $
function chat_upgrade($oldversion) {
// This function does anything necessary to upgrade
// older versions to match current functionality
global $CFG;
if ($oldversion < 2003072100) {
modify_database ("", " INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('chat', 'report', 'chat', 'name'); ");
}
if ($oldversion < 2003072101) {
table_column("chat", "messages", "keepdays", "integer", "10", "unsigned", "0", "not null");
}
if ($oldversion < 2003072102) {
table_column("chat", "", "studentlogs", "integer", "4", "unsigned", "0", "not null", "keepdays");
}
if ($oldversion < 2003072500) {
table_column("chat", "", "chattime", "integer", "10", "unsigned", "0", "not null", "studentlogs");
table_column("chat", "", "schedule", "integer", "4", "", "0", "not null", "studentlogs");
}
if ($oldversion < 2004022300) {
table_column("chat_messages", "", "groupid", "integer", "10", "unsigned", "0", "not null", "userid");
table_column("chat_users", "", "groupid", "integer", "10", "unsigned", "0", "not null", "userid");
}
if ($oldversion < 2004042500) {
include_once("$CFG->dirroot/mod/chat/lib.php");
chat_refresh_events();
}
if ($oldversion < 2004043000) {
modify_database("", "INSERT INTO prefix_log_display (module, action, mtable, field) VALUES ('chat', 'talk', 'chat', 'name');");
}
if ($oldversion < 2004111200) {
execute_sql("ALTER TABLE {$CFG->prefix}chat DROP INDEX `course`;",false);
execute_sql("ALTER TABLE {$CFG->prefix}chat_messages DROP INDEX `chatid`;",false);
execute_sql("ALTER TABLE {$CFG->prefix}chat_messages DROP INDEX `userid`;",false);
execute_sql("ALTER TABLE {$CFG->prefix}chat_messages DROP INDEX `groupid`;",false);
execute_sql("ALTER TABLE {$CFG->prefix}chat_users DROP INDEX `chatid`;",false);
execute_sql("ALTER TABLE {$CFG->prefix}chat_users DROP INDEX `groupid`;",false);
modify_database('','ALTER TABLE prefix_chat ADD INDEX `course` (`course`);');
modify_database('','ALTER TABLE prefix_chat_messages ADD INDEX `chatid` (`chatid`);');
modify_database('','ALTER TABLE prefix_chat_messages ADD INDEX `userid` (`userid`);');
modify_database('','ALTER TABLE prefix_chat_messages ADD INDEX `groupid` (`groupid`);');
modify_database('','ALTER TABLE prefix_chat_users ADD INDEX `chatid` (`chatid`);');
modify_database('','ALTER TABLE prefix_chat_users ADD INDEX `groupid` (`groupid`);');
}
if ($oldversion < 2005020300) {
table_column('chat_users', '', 'course', 'integer', '10', 'unsigned', '0', 'not null', '');
table_column('chat_users', '', 'lang' , 'varchar', '10', '' , '' , 'not null', '');
}
return true;
}
?>
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