144 lines
4.2 KiB
C++
144 lines
4.2 KiB
C++
/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2010-2018, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef headerfile_winix_db_dbbase
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#define headerfile_winix_db_dbbase
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#include "dbconn.h"
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#include "dbtextstream.h"
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#include <vector>
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#include <string>
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#include "core/error.h"
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#include "space/spaceparser.h"
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#include "date/date.h"
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#include "core/winixbase.h"
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namespace Winix
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{
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class DbBase : public WinixBase
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{
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public:
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DbBase();
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void SetConn(DbConn * conn);
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void SetConn(DbConn & conn);
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DbConn * GetConn();
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void LogQueries(bool log_q);
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PGresult * AssertQuery(const char * query);
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PGresult * AssertQuery(const DbTextStream & query);
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PGresult * AssertQuery(const char * q, ExecStatusType t);
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PGresult * AssertQuery(const DbTextStream & query, ExecStatusType t);
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void AssertResult(PGresult * r, ExecStatusType t);
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int AssertColumn(PGresult * r, const char * column_name);
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const char * AssertValue(PGresult * r, int row, int col);
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const std::wstring & AssertValueWide(PGresult * r, int row, int col); // warning: this method uses a static buffer
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void AssertValueWide(PGresult * r, int row, int col, std::wstring & result);
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void AssertValueBin(PGresult * r, int row, int col, std::string & result);
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long AssertValueLong(PGresult * r, int row, int col);
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int AssertValueInt(PGresult * r, int row, int col);
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bool AssertValueBool(PGresult * r, int row, int col);
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unsigned long AssertValueULong(PGresult * r, int row, int col);
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unsigned int AssertValueUInt(PGresult * r, int row, int col);
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pt::Date AssertValueDate(PGresult * r, int row, int col);
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bool AssertValueSpace(PGresult * r, int row, int col, pt::Space & space);
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void ClearResult(PGresult * r);
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long AssertCurrval(const char * table);
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bool IsNull(PGresult * r, int row, int col);
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int Rows(PGresult * r);
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int Cols(PGresult * r);
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long AffectedRows(PGresult * r);
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void CreateIdList(const std::vector<long> & id_tab, std::wstring & list, bool add_parentheses = true);
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Error DoCommand(const DbTextStream & command);
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Error DoCommand(const char * command);
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Error BeginTrans();
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Error RollbackTrans();
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Error CommitTrans();
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Error EndTrans(Error err);
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// new API (returns only bool)
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bool EndTrans(bool everything_ok);
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void UnescapeBin(const char * str, size_t len, std::string & out, bool clear_out = true);
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protected:
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// a helper method for escaping strings
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template<class RawType>
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DbTextStream::RawText<RawType> R(const RawType & par)
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{
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return DbTextStream::RawText<RawType>(par);
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}
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DbConn * db_conn;
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bool log_queries;
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private:
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// static int CharToInt(char c);
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// static bool IsCorrectOctalDigit(char c);
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// static int UnescapeBin(const char * str, size_t & i, size_t len);
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char UnescapeBinHexToDigit(char hex);
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DbTextStream bquery;
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pt::SpaceParser conf_parser;
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};
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} // namespace Winix
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#endif
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