mirror of
https://github.com/rbock/sqlpp11.git
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192 lines
7.5 KiB
C++
192 lines
7.5 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 "make_test_connection.h"
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#include "Tables.h"
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#include <sqlpp11/mysql/mysql.h>
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#include <sqlpp11/sqlpp11.h>
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#include "../../include/test_helpers.h"
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#include <cassert>
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#include <iostream>
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#include <vector>
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namespace sql = sqlpp::mysql;
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int Sample(int, char*[])
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{
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sql::global_library_init();
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try
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{
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auto db = sql::make_test_connection();
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test::createTabSample(db);
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test::createTabFoo(db);
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assert(not db(select(sqlpp::value(false).as(sqlpp::alias::a))).front().a);
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const auto tab = test::TabSample{};
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// clear the table
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db(remove_from(tab).unconditionally());
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// Several ways of ensuring that tab is empty
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assert(not db(select(exists(select(tab.intN).from(tab).unconditionally())))
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.front()
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.exists); // this is probably the fastest
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assert(not db(select(count(tab.intN)).from(tab).unconditionally()).front().count);
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assert(db(select(tab.intN).from(tab).unconditionally()).empty());
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// explicit all_of(tab)
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std::cerr << __FILE__ << ": " << __LINE__ << std::endl;
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select(all_of(tab)).from(tab);
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std::cerr << __FILE__ << ": " << __LINE__ << std::endl;
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db(select(all_of(tab)).from(tab).unconditionally());
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std::cerr << __FILE__ << ": " << __LINE__ << std::endl;
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for (const auto& row : db(select(all_of(tab)).from(tab).unconditionally()))
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{
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std::cerr << __FILE__ << ": " << __LINE__ << std::endl;
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std::cerr << "row.intN: " << row.intN << ", row.textN: " << row.textN << ", row.boolN: " << row.boolN
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<< std::endl;
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};
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// insert
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db(insert_into(tab).default_values());
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const auto x = select(all_of(tab)).from(tab).unconditionally();
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const auto y = db.prepare(x);
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for (const auto& row : db(db.prepare(select(all_of(tab)).from(tab).unconditionally())))
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{
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std::cerr << "intN: " << row.intN << std::endl;
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std::cerr << "textN: " << row.textN << std::endl;
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std::cerr << "boolN: " << row.boolN << std::endl;
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}
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db(insert_into(tab).set(tab.textN = "kaesekuchen", tab.boolN = true));
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db(insert_into(tab).default_values());
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db(insert_into(tab).set(tab.textN = "", tab.boolN = true));
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// update
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db(update(tab).set(tab.boolN = false).where(tab.intN.in(sqlpp::value_list(std::vector<int>{1, 2, 3, 4}))));
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db(update(tab).set(tab.boolN = true).where(tab.intN.in(1)));
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#warning: Add test with optional insert
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// remove
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{
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db(remove_from(tab).where(tab.intN == tab.intN + 3));
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std::cerr << "+++++++++++++++++++++++++++" << std::endl;
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for (const auto& row : db(select(all_of(tab)).from(tab).unconditionally()))
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{
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std::cerr << __LINE__ << " row.textN: " << row.textN << std::endl;
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}
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std::cerr << "+++++++++++++++++++++++++++" << std::endl;
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decltype(db(select(all_of(tab)).from(tab).unconditionally())) result;
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result = db(select(all_of(tab)).from(tab).unconditionally());
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std::cerr << "Accessing a field directly from the result (using the current row): " << result.begin()->intN
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<< std::endl;
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std::cerr << "Can do that again, no problem: " << result.begin()->intN << std::endl;
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}
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// transaction
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{
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auto tx = start_transaction(db);
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auto result = db(select(all_of(tab), select(max(tab.intN)).from(tab)).from(tab).unconditionally());
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if (const auto& row = *result.begin())
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{
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const int64_t a = row.intN.value_or(0);
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const ::sqlpp::optional<long> m = row.max;
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std::cerr << __LINE__ << " row.intN: " << a << ", row.max: " << m << std::endl;
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}
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tx.commit();
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}
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test::TabFoo foo;
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for (const auto& row : db(select(tab.intN).from(tab.join(foo).on(tab.intN == foo.intN)).unconditionally()))
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{
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std::cerr << row.intN << std::endl;
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}
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for (const auto& row :
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db(select(tab.intN).from(tab.left_outer_join(foo).on(tab.intN == foo.intN)).unconditionally()))
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{
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std::cerr << row.intN << std::endl;
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}
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auto ps = db.prepare(select(all_of(tab))
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.from(tab)
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.where(tab.intN != parameter(tab.intN) and tab.textN != parameter(tab.textN) and
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tab.boolN != parameter(tab.boolN)));
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ps.params.intN = 7;
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ps.params.textN = "wurzelbrunft";
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ps.params.boolN = true;
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for (const auto& row : db(ps))
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{
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std::cerr << "bound result: intN: " << row.intN << std::endl;
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std::cerr << "bound result: textN: " << row.textN << std::endl;
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std::cerr << "bound result: boolN: " << row.boolN << std::endl;
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}
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std::cerr << "--------" << std::endl;
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ps.params.boolN = false;
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for (const auto& row : db(ps))
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{
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std::cerr << "bound result: intN: " << row.intN << std::endl;
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std::cerr << "bound result: textN: " << row.textN << std::endl;
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std::cerr << "bound result: boolN: " << row.boolN << std::endl;
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}
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std::cerr << "--------" << std::endl;
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ps.params.textN = "kaesekuchen";
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for (const auto& row : db(ps))
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{
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std::cerr << "bound result: intN: " << row.intN << std::endl;
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std::cerr << "bound result: textN: " << row.textN << std::endl;
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std::cerr << "bound result: boolN: " << row.boolN << std::endl;
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}
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auto pi = db.prepare(insert_into(tab).set(tab.textN = parameter(tab.textN), tab.boolN = true));
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pi.params.textN = "prepared cake";
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std::cerr << "Inserted: " << db(pi) << std::endl;
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auto pu = db.prepare(update(tab).set(tab.boolN = parameter(tab.boolN)).where(tab.textN == "prepared cake"));
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pu.params.boolN = false;
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std::cerr << "Updated: " << db(pu) << std::endl;
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auto pr = db.prepare(remove_from(tab).where(tab.textN != parameter(tab.textN)));
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pr.params.textN = "prepared cake";
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std::cerr << "Deleted lines: " << db(pr) << std::endl;
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for (const auto& row : db(select(case_when(tab.boolN).then(tab.intN).else_(foo.intN).as(tab.intN))
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.from(tab.cross_join(foo))
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.unconditionally()))
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{
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std::cerr << row.intN << std::endl;
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}
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}
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catch (const std::exception& e)
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{
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std::cerr << "Exception: " << e.what() << 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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