/**
* Configures the Piece_ORM environment.
*
* First this method tries to load a configuration from a configuration
* file in the given configration directory using
* Piece_ORM_Config_Factory::factory(). The method creates a new object
* if the load failed.
* Second this method sets the configuration to the current context.
* And also this method sets the configuration directory for the mapper
* configuration, and the cache directory for mappers, and the cache
* directory for Piece_ORM_Metadata class.
*
* @param string $configDirectory
* @param string $cacheDirectory
* @param string $mapperConfigDirectory
*/
function configure($configDirectory, $cacheDirectory, $mapperConfigDirectory)
{
$config =& Piece_ORM_Config_Factory::factory($configDirectory, $cacheDirectory);
$context =& Piece_ORM_Context::singleton();
$context->setConfiguration($config);
$context->setMapperConfigDirectory($mapperConfigDirectory);
$defaultDatabase = $config->getDefaultDatabase();
if (!is_null($defaultDatabase)) {
$context->setDatabase($defaultDatabase);
}
Piece_ORM_Mapper_Factory::setCacheDirectory($cacheDirectory);
Piece_ORM_Metadata_Factory::setCacheDirectory($cacheDirectory);
$GLOBALS['PIECE_ORM_Configured'] = true;
}
