/**
* Creates a Piece_ORM_Config object from a configuration file or
* a cache.
*
* @param string $configDirectory
* @param string $cacheDirectory
* @return Piece_ORM_Config
* @static
*/
function &factory($configDirectory = null, $cacheDirectory = null)
{
if (is_null($configDirectory)) {
$config =& new Piece_ORM_Config();
return $config;
}
if (!file_exists($configDirectory)) {
Piece_ORM_Error::push(PIECE_ORM_ERROR_NOT_FOUND, "The configuration directory [ {$configDirectory} ] not found.");
$return = null;
return $return;
}
$configFile = "{$configDirectory}/piece-orm-config.yaml";
if (!file_exists($configFile)) {
Piece_ORM_Error::push(PIECE_ORM_ERROR_NOT_FOUND, "The configuration file [ {$configFile} ] not found.");
$return = null;
return $return;
}
if (!is_readable($configFile)) {
Piece_ORM_Error::push(PIECE_ORM_ERROR_NOT_READABLE, "The configuration file [ {$configFile} ] is not readable.");
$return = null;
return $return;
}
if (is_null($cacheDirectory)) {
return Piece_ORM_Config_Factory::_createConfigurationFromFile($configFile);
}
if (!file_exists($cacheDirectory)) {
trigger_error("The cache directory [ {$cacheDirectory} ] is not found.", E_USER_WARNING);
return Piece_ORM_Config_Factory::_createConfigurationFromFile($configFile);
}
if (!is_readable($cacheDirectory) || !is_writable($cacheDirectory)) {
trigger_error("The cache directory [ {$cacheDirectory} ] is not readable or writable.", E_USER_WARNING);
return Piece_ORM_Config_Factory::_createConfigurationFromFile($configFile);
}
return Piece_ORM_Config_Factory::_getConfiguration($configFile, $cacheDirectory);
}
