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sqlpp11/tests/sqlite3/usage/DynamicLoadingTest.cpp
2021-08-01 20:37:36 +02:00

89 lines
3.2 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 "TabSample.h"
#include <sqlpp11/alias_provider.h>
#include <sqlpp11/functions.h>
#include <sqlpp11/insert.h>
#include <sqlpp11/remove.h>
#include <sqlpp11/select.h>
#include <sqlpp11/sqlite3/connection.h>
#include <sqlpp11/transaction.h>
#include <sqlpp11/update.h>
#ifdef SQLPP_USE_SQLCIPHER
#include <sqlcipher/sqlite3.h>
#else
#include <sqlite3.h>
#endif
#include <iostream>
#include <vector>
#include <sqlpp11/sqlite3/dynamic_libsqlite3.h>
SQLPP_ALIAS_PROVIDER(left)
namespace sql = sqlpp::sqlite3;
int main()
{
sql::connection_config config;
config.path_to_database = ":memory:";
config.flags = SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE;
config.debug = true;
sql::connection db(config);
db.execute("CREATE TABLE tab_sample (\
alpha bigint(20) DEFAULT NULL,\
beta varchar(255) DEFAULT NULL,\
gamma bool DEFAULT NULL\
)");
const auto tab = TabSample{};
auto i = insert_into(tab).columns(tab.beta, tab.gamma);
i.values.add(tab.beta = "rhabarbertorte", tab.gamma = false);
// i.values.add(tab.beta = "cheesecake", tab.gamma = false)
// i.values.add(tab.beta = "kaesekuchen", tab.gamma = true)
auto last_insert_rowid = db(i);
std::cerr << "last insert rowid: " << last_insert_rowid << std::endl;
// Just to demonstrate that you can call basically any function
std::cerr << "last insert rowid: "
<< db(select(sqlpp::verbatim<sqlpp::integer>("last_insert_rowid()").as(tab.alpha))).front().alpha
<< std::endl;
// select a static (alpha) and a dynamic column (beta)
auto s = dynamic_select(db).dynamic_columns(tab.alpha.as(left)).from(tab).unconditionally();
s.selected_columns.add(tab.beta);
s.selected_columns.add(tab.gamma);
for (const auto& row : db(s))
{
std::cerr << "row.alpha: " << row.left << ", row.beta: " << row.at("beta") << ", row.gamma: " << row.at("gamma")
<< std::endl;
};
return 0;
}