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sqlpp11/tests/mysql/usage/Prepared.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

98 lines
3.3 KiB
C++

/*
* Copyright (c) 2013 - 2016, Roland Bock
* 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 <cassert>
#include <sqlpp11/alias_provider.h>
#include <sqlpp11/functions.h>
#include <sqlpp11/insert.h>
#include <sqlpp11/mysql/connection.h>
#include <sqlpp11/remove.h>
#include <sqlpp11/select.h>
#include <sqlpp11/transaction.h>
#include <sqlpp11/update.h>
#include <iostream>
#include <vector>
const auto library_raii = sqlpp::mysql::scoped_library_initializer_t{0, nullptr, nullptr};
namespace sql = sqlpp::mysql;
const auto tab = TabSample{};
void testPreparedStatementResult(sql::connection& db)
{
auto preparedInsert = db.prepare(insert_into(tab).set(tab.beta = parameter(tab.beta)));
preparedInsert.params.beta = sqlpp::null;
db(preparedInsert);
preparedInsert.params.beta = "17";
db(preparedInsert);
preparedInsert.params.beta = sqlpp::value_or_null<sqlpp::text>(sqlpp::null);
db(preparedInsert);
preparedInsert.params.beta = sqlpp::value_or_null("17");
db(preparedInsert);
auto preparedSelectAll = db.prepare(sqlpp::select(count(tab.alpha)).from(tab).unconditionally());
auto preparedUpdateAll = db.prepare(sqlpp::update(tab).set(tab.gamma = false).unconditionally());
{
// explicit result scope
// if results are released update should execute without exception
auto result = db(preparedSelectAll);
std::ignore = result.front().count;
}
db(preparedUpdateAll);
}
int Prepared(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.execute(R"(DROP TABLE IF EXISTS tab_foo)");
db.execute(R"(CREATE TABLE tab_foo (
omega bigint(20) DEFAULT NULL
))");
testPreparedStatementResult(db);
}
catch (const std::exception& e)
{
std::cerr << "Exception: " << e.what() << std::endl;
return 1;
}
return 0;
}