pgLab/pglab/OpenDatabase.cpp

#include "OpenDatabase.h"
#include "catalog/PgDatabaseCatalog.h"
#include "Pgsql_Connection.h"
#include "model/TypeSelectionItemModel.h"

Expected<OpenDatabase::OpenDatabaseSPtr> OpenDatabase::createOpenDatabase(const ConnectionConfig &cfg)
{
	OpenDatabaseSPtr odb(new OpenDatabase(cfg));
	if (odb->Init()) {

        return odb;

	}
	//return Expected<ConnectionConfig>::fromException(std::out_of_range("Invalid row"));
	return Expected<OpenDatabaseSPtr>::fromException(
        std::runtime_error("Failed to get database information"));
}

OpenDatabase::OpenDatabase(const ConnectionConfig& cfg)
	: m_config(cfg)
	, m_catalog(std::make_shared<PgDatabaseCatalog>())
{
}

OpenDatabase::~OpenDatabase() = default;

bool OpenDatabase::Init()
{
	Pgsql::Connection conn;
	auto kw = m_config.getKeywords();
	auto vals = m_config.getValues();
	if (conn.connect(kw, vals, 0)) {
		m_catalog->loadAll(conn, nullptr);
        return true;
	}
	return false;
}

std::shared_ptr<PgDatabaseCatalog> OpenDatabase::catalog()
{
	return m_catalog;
}


TypeSelectionItemModel* OpenDatabase::typeSelectionModel()
{
	if (m_typeSelectionModel == nullptr) {
		m_typeSelectionModel = new TypeSelectionItemModel(nullptr);
		m_typeSelectionModel->setTypeList(m_catalog->types());
	}
	return m_typeSelectionModel;
}