/**
* Constructor
*
* @param AdapterInterface $adapter
*/
public function __construct(AdapterInterface $adapter)
{
$this->adapter = $adapter;
try {
$this->cacher = CachePool::get('MetadataCacher');
if ($this->cacher instanceof \General\Cache\Storage\StorageInterface) {
$this->cacher->getResource();
}
} catch (\Exception $e) {
$this->cacher = null;
$message = 'MetaDataCacher Connect Error: ' . $e->getMessage() . "\n";
error_log($message);
}
$this->defaultSchema = $adapter->getDriver()->getConnection()->getCurrentSchema() ?: self::DEFAULT_SCHEMA;
}
/**
* @param SqlInterface|null $sql
* @return string
*/
public function getSqlString(SqlInterface $sql = null)
{
$sql = $sql ?: $this->lastSql;
if (!$sql) {
throw new Exception\InvalidArgumentException('Sql sequence is not supplied.');
}
return $sql->getSqlString($this->adapter->getPlatform());
}