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83 lines
2.9 KiB
C++
83 lines
2.9 KiB
C++
/*
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* Copyright (c) 2013-2021, Roland Bock
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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 modification,
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* are permitted provided that the following conditions are met:
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*
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* * 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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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* 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" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <iostream>
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#include "make_test_connection.h"
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#include "Tables.h"
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#include <sqlpp11/sqlpp11.h>
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#include <sqlpp11/core/query/query/custom_query.h>
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#include <sqlpp11/mysql/mysql.h>
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namespace
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{
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struct on_duplicate_key_update
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{
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std::string _serialized;
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template <typename Db, typename Assignment>
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on_duplicate_key_update(Db& db, Assignment assignment)
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{
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typename Db::_serializer_context_t context{db};
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_serialized = " ON DUPLICATE KEY UPDATE " + to_sql_string(assignment, context).str();
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}
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template <typename Db, typename Assignment>
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auto operator()(Db& db, Assignment assignment) -> on_duplicate_key_update&
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{
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typename Db::_serializer_context_t context{db};
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_serialized += ", " + to_sql_string(assignment, context).str();
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return *this;
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}
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auto get() const -> sqlpp::verbatim_t<::sqlpp::no_value_t>
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{
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return ::sqlpp::verbatim(_serialized);
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}
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};
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} // namespace
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const auto tab = test::TabSample{};
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namespace sql = sqlpp::mysql;
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int CustomQuery(int, char*[])
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{
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sql::global_library_init();
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try
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{
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auto db = sql::make_test_connection();
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test::createTabSample(db);
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// Create a MYSQL style custom "insert on duplicate update"
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db(custom_query(sqlpp::insert_into(tab).set(tab.textN = "sample", tab.boolN = true),
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on_duplicate_key_update(db, tab.textN = "sample")(db, tab.boolN = false).get()));
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}
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catch (const std::exception& e)
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{
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std::cerr << "Exception: " << e.what() << std::endl;
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return 1;
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}
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return 0;
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}
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