You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
115 lines
3.4 KiB
115 lines
3.4 KiB
/*
|
|
* This program source code file is part of KiCad, a free EDA CAD application.
|
|
*
|
|
* Copyright (C) 2022 Jon Evans <jon@craftyjon.com>
|
|
* Copyright (C) 2022 KiCad Developers, see AUTHORS.txt for contributors.
|
|
*
|
|
* This program is free software: you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation, either version 3 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef KICAD_DATABASE_CONNECTION_H
|
|
#define KICAD_DATABASE_CONNECTION_H
|
|
|
|
#include <any>
|
|
#include <map>
|
|
#include <memory>
|
|
#include <vector>
|
|
|
|
extern const char* const traceDatabase;
|
|
|
|
|
|
namespace nanodbc
|
|
{
|
|
class connection;
|
|
}
|
|
|
|
class DATABASE_CACHE;
|
|
|
|
|
|
class DATABASE_CONNECTION
|
|
{
|
|
public:
|
|
static const long DEFAULT_TIMEOUT = 10;
|
|
|
|
typedef std::map<std::string, std::any> ROW;
|
|
|
|
DATABASE_CONNECTION( const std::string& aDataSourceName, const std::string& aUsername,
|
|
const std::string& aPassword, int aTimeoutSeconds = DEFAULT_TIMEOUT,
|
|
bool aConnectNow = true );
|
|
|
|
DATABASE_CONNECTION( const std::string& aConnectionString,
|
|
int aTimeoutSeconds = DEFAULT_TIMEOUT,
|
|
bool aConnectNow = true );
|
|
|
|
~DATABASE_CONNECTION();
|
|
|
|
void SetCacheParams( int aMaxSize, int aMaxAge );
|
|
|
|
bool Connect();
|
|
|
|
bool Disconnect();
|
|
|
|
bool IsConnected() const;
|
|
|
|
/**
|
|
* Retrieves a single row from a database table. Table and column names are cached when the
|
|
* connection is created, so schema changes to the database won't be recognized unless the
|
|
* connection is recreated.
|
|
* @param aTable the name of a table in the database
|
|
* @param aWhere column to search, and the value to search for
|
|
* @param aResult will be filled with a row in the database if one was found
|
|
* @return true if aResult was filled; false otherwise
|
|
*/
|
|
bool SelectOne( const std::string& aTable, const std::pair<std::string, std::string>& aWhere,
|
|
ROW& aResult );
|
|
|
|
/**
|
|
* Retrieves all rows from a database table.
|
|
* @param aTable the name of a table in the database
|
|
* @param aResults will be filled with all rows in the table
|
|
* @return true if the query succeeded and at least one ROW was found, false otherwise
|
|
*/
|
|
bool SelectAll( const std::string& aTable, std::vector<ROW>& aResults );
|
|
|
|
std::string GetLastError() const { return m_lastError; }
|
|
|
|
private:
|
|
bool syncTables();
|
|
|
|
bool cacheColumns();
|
|
|
|
bool getQuoteChar();
|
|
|
|
std::unique_ptr<nanodbc::connection> m_conn;
|
|
|
|
std::string m_dsn;
|
|
std::string m_user;
|
|
std::string m_pass;
|
|
std::string m_connectionString;
|
|
|
|
std::string m_lastError;
|
|
|
|
std::map<std::string, std::string> m_tables;
|
|
|
|
/// Map of table -> map of column name -> data type
|
|
std::map<std::string, std::map<std::string, int>> m_columnCache;
|
|
|
|
long m_timeout;
|
|
|
|
char m_quoteChar;
|
|
|
|
std::unique_ptr<DATABASE_CACHE> m_cache;
|
|
};
|
|
|
|
#endif //KICAD_DATABASE_CONNECTION_H
|