mirror of
https://github.com/rbock/sqlpp11.git
synced 2024-11-16 12:51:13 +08:00
88 lines
3.6 KiB
C++
88 lines
3.6 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 <cassert>
|
|
#include <sqlpp11/core/alias_provider.h>
|
|
#include <sqlpp11/core/query/query/custom_query.h>
|
|
#include <sqlpp11/functions.h>
|
|
#include <sqlpp11/core/clause/insert.h>
|
|
#include <sqlpp11/core/clause/remove.h>
|
|
#include <sqlpp11/core/clause/select.h>
|
|
#include <sqlpp11/sqlite3/database/connection.h>
|
|
#include <sqlpp11/core/database/transaction.h>
|
|
#include <sqlpp11/core/clause/update.h>
|
|
|
|
#ifdef SQLPP_USE_SQLCIPHER
|
|
#include <sqlcipher/sqlite3.h>
|
|
#else
|
|
#include <sqlite3.h>
|
|
#endif
|
|
#include <iostream>
|
|
#include <vector>
|
|
|
|
namespace sql = sqlpp::sqlite3;
|
|
|
|
SQLPP_ALIAS_PROVIDER(pragma)
|
|
|
|
int Transaction(int, char*[])
|
|
{
|
|
sql::connection db({":memory:", SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, "", true});
|
|
|
|
std::cerr << "--------------------------------------" << std::endl;
|
|
|
|
assert(db.is_transaction_active() == false);
|
|
|
|
auto current_level = db.get_default_isolation_level();
|
|
std::cout << "Expecting default isolation level = 1, is " << static_cast<int>(current_level) << std::endl;
|
|
assert(current_level == sqlpp::isolation_level::serializable);
|
|
|
|
int64_t pragmaValue = db(custom_query(sqlpp::verbatim("PRAGMA read_uncommitted"))
|
|
.with_result_type_of(select(sqlpp::value(1).as(pragma))))
|
|
.front()
|
|
.pragma;
|
|
assert(pragmaValue == 0);
|
|
|
|
std::cerr << "Expecting read_uncommitted = 0, is: " << pragmaValue << std::endl;
|
|
db.set_default_isolation_level(sqlpp::isolation_level::read_uncommitted);
|
|
auto tx = start_transaction(db);
|
|
assert(db.is_transaction_active());
|
|
pragmaValue = db(custom_query(sqlpp::verbatim("PRAGMA read_uncommitted"))
|
|
.with_result_type_of(select(sqlpp::value(1).as(pragma))))
|
|
.front()
|
|
.pragma;
|
|
std::cerr << "Now expecting read_uncommitted = 1, is: " << pragmaValue << std::endl;
|
|
assert(pragmaValue == 1);
|
|
|
|
current_level = db.get_default_isolation_level();
|
|
std::cout << "Now expecting default isolation level = 4, is " << static_cast<int>(current_level) << std::endl;
|
|
assert(current_level == sqlpp::isolation_level::read_uncommitted);
|
|
|
|
tx.commit();
|
|
assert(db.is_transaction_active() == false);
|
|
std::cerr << "--------------------------------------" << std::endl;
|
|
|
|
return 0;
|
|
}
|