/* * Copyright (c) 2013-2015, 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 #include "Sample.h" #include "MockDb.h" #include "is_regular.h" #include #include #include #include template int64_t getColumn(Db&& db, const Column& column) { auto result = db(select(column.as(sqlpp::alias::a)).from(column.table()).where(true)); if (not result.empty()) return result.front().a; else return 0; } int Select(int, char**) { MockDb db = {}; MockDb::_serializer_context_t printer; test::TabFoo f; test::TabBar t; const auto tab_a = f.as(sqlpp::alias::a); getColumn(db, t.alpha); select(count(t.alpha)); for (const auto& row : db(select(sqlpp::value(false).as(sqlpp::alias::a)))) { std::cout << row.a << std::endl; } for (const auto& row : db(select(all_of(t)).from(t).where(true))) { int64_t a = row.alpha; const std::string b = row.beta; std::cout << a << ", " << b << std::endl; } for (const auto& row : db(select(all_of(t).as(t)).from(t).where(true))) { int64_t a = row.tabBar.alpha; const std::string b = row.tabBar.beta; std::cout << a << ", " << b << std::endl; } for (const auto& row : db(select(all_of(t).as(t), t.gamma).from(t).where(t.alpha > 7))) { int64_t a = row.tabBar.alpha; const std::string b = row.tabBar.beta; const bool g = row.gamma; std::cout << a << ", " << b << ", " << g << std::endl; } for (const auto& row : db(select(all_of(t), all_of(f)).from(t.join(f).on(t.alpha > f.omega and not t.gamma)).where(true))) { std::cout << row.alpha << std::endl; } for (const auto& row : db(select(all_of(t), all_of(f)).from(t.join(f).on(t.alpha > f.omega).join(tab_a).on(t.alpha == tab_a.omega)).where(true))) { std::cout << row.alpha << std::endl; } for (const auto& row : db(select(count(t.alpha), avg(t.alpha)).from(t).where(true))) { std::cout << row.count << std::endl; } for (const auto& row : db(select(count(t.alpha), avg(t.alpha)).from(t).where(t.alpha == sqlpp::tvin(0)))) { std::cout << row.count << std::endl; } auto stat = sqlpp::select().columns(all_of(t)).flags(sqlpp::all).from(t).extra_tables(f,t).where(t.alpha > 0).group_by(t.alpha).order_by(t.gamma.asc()).having(t.gamma).limit(7).offset(19); auto s = dynamic_select(db).dynamic_columns(all_of(t)).dynamic_flags().dynamic_from(t).extra_tables(f,t).dynamic_where().dynamic_group_by(t.alpha).dynamic_order_by().dynamic_having(t.gamma).dynamic_limit().dynamic_offset(); s.select_flags.add(sqlpp::distinct); s.selected_columns.add(f.omega); s.from.add(f); s.where.add(t.alpha > 7); s.having.add(t.alpha > 7); s.limit.set(3); s.offset.set(3); s.group_by.add(t.beta); s.order_by.add(t.beta.asc()); for (const auto& row : db(s)) { int64_t a = row.alpha; std::cout << a << std::endl; } printer.reset(); std::cerr << serialize(s, printer).str() << std::endl; printer.reset(); std::cerr << serialize(stat, printer).str() << std::endl; select(sqlpp::value(7).as(t.alpha)); return 0; }