116 lines
3.3 KiB
C++
116 lines
3.3 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) 2010-2021, 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_plugins_thread_tdb
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#define headerfile_winix_plugins_thread_tdb
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#include <vector>
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#include "thread.h"
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#include "db/dbbase.h"
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#include "core/error.h"
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namespace Winix
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{
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namespace Thread
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{
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class TDb : public DbBase
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{
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public:
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/*
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high level interface
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*/
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//Error AddThread(const Thread & thread);
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//Error GetThread(long file_id, Thread & thread);
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//Error GetThreads(const std::vector<long> & file_id_tab, std::vector<Thread> & thread_tab);
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Error RemoveThread(long file_id);
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Error AddAnswer(long file_id, long answer_id);
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Error GetAnswers(long file_id, std::vector<long> & answer_id_tab);
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Error RemoveAnswer(long answer_id);
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/*
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low level interface
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*/
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// looking for the last answer in a thread (in 'thread_files' table)
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// this is not the value from 'thread' table
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long FindLastAnswer(long file_id);
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// returning all threads id (file_id) (from 'thread' table)
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void GetAllThreadsId(std::vector<long> & file_id);
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// removing only the answer in 'thread_files' table without updating 'thread' table
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Error RemoveAnswerOnly(long answer_id);
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// returning how many answers there are
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// calculating from 'thread_files' table
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// this is not the value from 'thread' table
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long CalcAnswers(long file_id);
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// recalculating last_item, replies in 'thread' table on a given thread
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Error RecalcThread(long file_id);
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private:
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DbTextStream query;
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std::wstring list_id;
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int cfile_id, creplies, cclosed;
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//int clast_item, cdate_modification, cuser_id, cguest;
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Thread thread_temp;
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std::vector<long> file_id_tab;
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void SetThreadColumns(PGresult * r);
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void SetThread(PGresult * r, int col, Thread & thread);
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Error RemoveAnswerRecalcLast(long file_id);
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Error RemoveAnswerRecalcLast(const std::vector<long> & file_id_tab);
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};
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} // namespace
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} // namespace Winix
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#endif
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