function handle(&$params)
{
$app =& Dataface_Application::getInstance();
if (df_get_database_version() == df_get_file_system_version()) {
$app->redirect(DATAFACE_SITE_HREF . '?--msg=' . urlencode('The application database is up to date at version ' . df_get_database_version()));
}
if (df_get_database_version() > df_get_file_system_version()) {
$app->redirect(DATAFACE_SITE_HREF . '?--msg=' . urlencode('The database version is greater than the file system version. Please upgrade your application to match the version in the database (version ' . df_get_database_version()));
}
$res = xf_db_query("select count(*) from dataface__version", df_db());
if (!$res) {
throw new Exception(xf_db_error(df_db()));
}
$row = xf_db_fetch_row($res);
if ($row[0] == 0) {
$res2 = xf_db_query("insert into dataface__version (`version`) values (0)", df_db());
if (!$res2) {
throw new Exception(xf_db_error(df_db()));
}
}
if (file_exists('conf/Installer.php')) {
import('conf/Installer.php');
$installer = new conf_Installer();
$methods = get_class_methods('conf_Installer');
$methods = preg_grep('/^update_([0-9]+)$/', $methods);
$updates = array();
foreach ($methods as $method) {
preg_match('/^update_([0-9]+)$/', $method, $matches);
$version = intval($matches[1]);
if ($version > df_get_database_version() and $version <= df_get_file_system_version()) {
$updates[] = $version;
}
}
sort($updates);
foreach ($updates as $update) {
$method = 'update_' . $update;
$res = $installer->{$method}();
if (PEAR::isError($res)) {
return $res;
}
$res = xf_db_query("update dataface__version set `version`='" . addslashes($update) . "'", df_db());
if (!$res) {
throw new Exception(xf_db_error(df_db()), E_USER_ERROR);
}
}
}
$res = xf_db_query("update dataface__version set `version`='" . addslashes(df_get_file_system_version()) . "'", df_db());
if (!$res) {
throw new Exception(xf_db_error(df_db()), E_USER_ERROR);
}
if (function_exists('apc_clear_cache')) {
apc_clear_cache('user');
}
df_clear_views();
df_clear_cache();
$app->redirect(DATAFACE_SITE_HREF . '?--msg=' . urlencode('The database has been successfully updated to version ' . df_get_file_system_version()));
}
/**
* Returns the version number on the file system.
* The version number is stored in the version.txt file.
* The number that counts is the last integer.
*
* E.g. if the version is 5.6 beta-1 4356
* then the version returned here would be 4356.
* This allows the version to be a running total and makes it
* easy to apply patches and updates for new versions.
* @return int The version number on the file system.
*/
function df_get_file_system_version()
{
static $version = -1;
if ($version == -1) {
if (file_exists('version.txt')) {
list($fs_version) = file('version.txt');
} else {
$fs_version = '0';
}
$fs_version = explode(' ', $fs_version);
$fs_version = intval($fs_version[count($fs_version) - 1]);
$version = $fs_version;
}
if (!$version) {
return df_get_database_version();
}
return $version;
}
