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class DatabaseController
{
private:
	static QSqlDatabase *db;
	static bool CreateConnection();
	static void InitUserModel();
public:
	static QSqlTableModel *userModel;
	static bool Init();
	static void Dispose();
};

bool DatabaseController::CreateConnection()
{
	db = &(QSqlDatabase::addDatabase("QSQLITE"));
	db->setDatabaseName("all.db");
	if (!db->open()) {
		QSqlError error = db->lastError();
		QMessageBox::critical(NULL, "Error!", error.text());
		return false;
	}
	return true;
}