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sqlpp11/tests/mysql/usage/Update.cpp
MeanSquaredError dff8c23b22
Connection pools (#499)
Add support for connection pooling

* Add support for connection pooling to the core code.
* Add support for PostgreSQL connection pooling with tests.
* Add support for SQLite3 connection pooling with tests.
* Add support for MySQL connection pooling with tests.
2023-07-17 06:14:23 +02:00

69 lines
2.4 KiB
C++

/*
* Copyright (c) 2021 - 2021, Roland Bock, ZerQAQ
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "make_test_connection.h"
#include "TabSample.h"
#include <sqlpp11/mysql/mysql.h>
#include <sqlpp11/sqlpp11.h>
#include <iostream>
#include <vector>
const auto tab = TabSample{};
namespace sql = sqlpp::mysql;
int Update(int, char*[])
{
sql::global_library_init();
try
{
auto db = sql::make_test_connection();
db.execute(R"(DROP TABLE IF EXISTS tab_sample)");
db.execute(R"(CREATE TABLE tab_sample (
alpha bigint(20) AUTO_INCREMENT,
beta varchar(255) DEFAULT NULL,
gamma bool DEFAULT NULL,
PRIMARY KEY (alpha)
))");
db(insert_into(tab).set(tab.beta = "1", tab.gamma = false));
db(insert_into(tab).set(tab.beta = "2", tab.gamma = false));
db(insert_into(tab).set(tab.beta = "3", tab.gamma = false));
db(sql::update(tab).set(tab.gamma = true).unconditionally().order_by(tab.alpha.desc()).limit(1u));
for(const auto &row : db(sqlpp::select(tab.gamma).from(tab).where(tab.beta == "3"))){
assert(row.gamma);
}
}
catch (const std::exception& e)
{
std::cerr << "Exception: " << e.what() << std::endl;
return 1;
}
return 0;
}