mirror of
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107 lines
3.5 KiB
C++
107 lines
3.5 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 "TabSample.h"
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#include <sqlpp11/sqlpp11.h>
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#include <sqlpp11/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 " + serialize(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 += ", " + serialize(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 = TabSample{};
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namespace mysql = sqlpp::mysql;
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int CustomQuery(int, char*[])
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{
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mysql::global_library_init();
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auto config = std::make_shared<mysql::connection_config>();
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config->user = "root";
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config->database = "sqlpp_mysql";
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config->debug = true;
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try
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{
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mysql::connection db(config);
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}
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catch (const sqlpp::exception& e)
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{
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std::cerr << "For testing, you'll need to create a database sqlpp_mysql for user root (no password)" << std::endl;
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std::cerr << e.what() << std::endl;
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return 1;
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}
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try
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{
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mysql::connection db(config);
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db.execute(R"(DROP TABLE IF EXISTS tab_sample)");
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db.execute(R"(CREATE TABLE tab_sample (
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alpha bigint(20) AUTO_INCREMENT,
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beta varchar(255) DEFAULT NULL,
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gamma bool DEFAULT NULL,
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PRIMARY KEY (alpha)
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))");
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db.execute(R"(DROP TABLE IF EXISTS tab_foo)");
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db.execute(R"(CREATE TABLE tab_foo (
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omega bigint(20) DEFAULT NULL
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))");
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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.beta = "sample", tab.gamma = true),
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on_duplicate_key_update(db, tab.beta = "sample")(db, tab.gamma = 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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