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<?php
namespace Digitigrade;
use Digitigrade\Model\Actor;
class Db extends Singleton {
private const INIT_SCHEMA_PATH = __DIR__ . '/../schema.sql';
private \PDO $conn;
protected function __construct() {
$conf = GlobalConfig::getInstance();
$this->conn = new \PDO($conf->getDbConnection(), $conf->getDbUser(), $conf->getDbPassword(), [
\PDO::ATTR_PERSISTENT => true,
]);
}
public function runInitialSchema() {
$this->conn->exec(file_get_contents(self::INIT_SCHEMA_PATH));
}
public function getDbVersion(): int {
$result = $this->conn->query('SELECT db_version FROM db_version');
return $result->fetch()['db_version'];
}
/**
* Changes the database schema version
*
* CAREFUL! this shouldn't be used unless you absolutely know why
* @param int $newVersion the new version number
* @return void
*/
public function setDbVersion(int $newVersion) {
$stmt = $this->conn->prepare('UPDATE db_version SET db_version = ?');
$stmt->execute([$newVersion]);
}
public function getPdo(): \PDO {
return $this->conn;
}
}
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