function handle(&$params)
{
$app =& Dataface_Application::getInstance();
if (df_get_database_version() == df_get_file_system_version()) {
header('Location: ' . DATAFACE_SITE_HREF . '?--msg=' . urlencode('The application database is up to date at version ' . df_get_database_version()));
exit;
}
if (df_get_database_version() > df_get_file_system_version()) {
header('Location: ' . 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()));
exit;
}
$res = mysql_query("select count(*) from dataface__version", df_db());
if (!$res) {
throw new Exeption(mysql_error(df_db()));
}
$row = mysql_fetch_row($res);
if ($row[0] == 0) {
$res2 = mysql_query("insert into dataface__version (`version`) values (0)", df_db());
if (!$res2) {
throw new Exception(mysql_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;
}
$res = mysql_query("update dataface__version set `version`='" . addslashes($update) . "'", df_db());
if (!$res) {
trigger_error(mysql_error(df_db()), E_USER_ERROR);
}
}
}
$res = mysql_query("update dataface__version set `version`='" . addslashes(df_get_file_system_version()) . "'", df_db());
if (!$res) {
trigger_error(mysql_error(df_db()), E_USER_ERROR);
}
header('Location: ' . DATAFACE_SITE_HREF . '?--msg=' . urlencode('The database has been successfully updated to version ' . df_get_file_system_version()));
exit;
}
/**
* Initializes the dataface framework.
*/
function df_init($site_path, $dataface_url, $conf = null)
{
require_once dirname(__FILE__) . '/init.php';
init($site_path, $dataface_url);
import('PEAR.php');
import('Dataface/Application.php');
$app = Dataface_Application::getInstance($conf);
if (df_get_file_system_version() != df_get_database_version()) {
$res = df_update();
if (PEAR::isError($res)) {
trigger_error($res->getMessage(), E_USER_ERROR);
}
}
return $app;
}
