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88 lines
3.5 KiB
C++
88 lines
3.5 KiB
C++
/*
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* Copyright (c) 2017, Volker Aßmann
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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 <memory>
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#include <stdexcept>
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#include <sqlpp11/core/name/alias_provider.h>
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#include <sqlpp11/core/query/query/custom_query.h>
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#include <sqlpp11/postgresql/database/connection.h>
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#include <sqlpp11/sqlpp11.h>
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#include <sqlpp11/core/database/transaction.h>
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#include "../../include/test_helpers.h"
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#include "make_test_connection.h"
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namespace sql = sqlpp::postgresql;
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SQLPP_ALIAS_PROVIDER(level);
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int Transaction(int, char*[])
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{
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sql::connection db = sql::make_test_connection();
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try
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{
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{
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require_equal(__LINE__, db.is_transaction_active(), false);
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auto current_level = std::string(db(custom_query(sqlpp::verbatim("show transaction_isolation;"))
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.with_result_type_of(select(sqlpp::value("").as(level))))
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.front()
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.level);
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require_equal(__LINE__, current_level, "read committed");
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std::cerr << "isolation level outside transaction: " << current_level << "\n";
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auto tx = start_transaction(db, sqlpp::isolation_level::serializable);
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require_equal(__LINE__, db.is_transaction_active(), true);
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current_level = db(custom_query(sqlpp::verbatim("show transaction_isolation;"))
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.with_result_type_of(select(sqlpp::value("").as(level))))
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.front()
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.level;
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require_equal(__LINE__, current_level, "serializable");
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std::cerr << "isolation level in transaction(serializable) : " << current_level << "\n";
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tx.commit();
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require_equal(__LINE__, db.is_transaction_active(), false);
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}
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require_equal(__LINE__, db.get_default_isolation_level(), sqlpp::isolation_level::read_committed);
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db.set_default_isolation_level(sqlpp::isolation_level::serializable);
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require_equal(__LINE__, db.get_default_isolation_level(), sqlpp::isolation_level::serializable);
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}
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catch (const sqlpp::exception& ex)
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{
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std::cerr << "Got exception: " << ex.what() << std::endl;
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return 1;
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}
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catch (...)
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{
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std::cerr << "Got unknown exception" << 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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