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9b49afa306
* Document the connector API method is_transaction_active() * Move mysql::connection_base::is_transaction_active() to the other transaction-handling methods. * Add more tests for mysql::connection::is_transaction_active() * Add postgresql::connection_base::is_transaction_active() * Add tests for postgresql::connection_base::is_transaction_active() * Change the type of the SQLite3 transaction status from transaction_status_type to a boolean flag. * Add sqlite3::connection_base::is_transaction_active() * Add tests for sqlite3::connection_base::is_transaction_active() * When closing a transaction do it in the following order: report (if any), execute SQL command, set transaction active flag to false.
89 lines
3.5 KiB
C++
89 lines
3.5 KiB
C++
/*
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* Copyright (c) 2013 - 2016, 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 "TabSample.h"
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#include <cassert>
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#include <sqlpp11/alias_provider.h>
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#include <sqlpp11/custom_query.h>
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#include <sqlpp11/functions.h>
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#include <sqlpp11/insert.h>
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#include <sqlpp11/remove.h>
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#include <sqlpp11/select.h>
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#include <sqlpp11/sqlite3/connection.h>
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#include <sqlpp11/transaction.h>
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#include <sqlpp11/update.h>
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#ifdef SQLPP_USE_SQLCIPHER
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#include <sqlcipher/sqlite3.h>
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#else
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#include <sqlite3.h>
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#endif
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#include <iostream>
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#include <vector>
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namespace sql = sqlpp::sqlite3;
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SQLPP_ALIAS_PROVIDER(pragma)
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int Transaction(int, char*[])
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{
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sql::connection db({":memory:", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, "", true});
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std::cerr << "--------------------------------------" << std::endl;
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assert(db.is_transaction_active() == false);
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auto current_level = db.get_default_isolation_level();
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std::cout << "Expecting default isolation level = 1, is " << static_cast<int>(current_level) << std::endl;
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assert(current_level == sqlpp::isolation_level::serializable);
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int64_t pragmaValue = db(custom_query(sqlpp::verbatim("PRAGMA read_uncommitted"))
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.with_result_type_of(select(sqlpp::value(1).as(pragma))))
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.front()
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.pragma;
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assert(pragmaValue == 0);
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std::cerr << "Expecting read_uncommitted = 0, is: " << pragmaValue << std::endl;
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db.set_default_isolation_level(sqlpp::isolation_level::read_uncommitted);
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auto tx = start_transaction(db);
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assert(db.is_transaction_active());
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pragmaValue = db(custom_query(sqlpp::verbatim("PRAGMA read_uncommitted"))
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.with_result_type_of(select(sqlpp::value(1).as(pragma))))
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.front()
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.pragma;
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std::cerr << "Now expecting read_uncommitted = 1, is: " << pragmaValue << std::endl;
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assert(pragmaValue == 1);
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current_level = db.get_default_isolation_level();
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std::cout << "Now expecting default isolation level = 4, is " << static_cast<int>(current_level) << std::endl;
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assert(current_level == sqlpp::isolation_level::read_uncommitted);
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tx.commit();
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assert(db.is_transaction_active() == false);
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std::cerr << "--------------------------------------" << std::endl;
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return 0;
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}
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