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85 lines
4.0 KiB
C++
85 lines
4.0 KiB
C++
/*
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* Copyright (c) 2016-2019, 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 "Sample.h"
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#include "compare.h"
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#include <sqlpp11/sqlpp11.h>
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#include <iostream>
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SQLPP_ALIAS_PROVIDER(pragma)
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int CustomQuery(int, char*[])
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{
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const auto foo = test::TabFoo{};
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const auto bar = test::TabBar{};
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auto db = MockDb{};
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// Unconditionally
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compare(__LINE__,
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custom_query(sqlpp::select(), select_flags(sqlpp::distinct), select_columns(foo.omega), from(foo),
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sqlpp::unconditionally()),
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"SELECT DISTINCT tab_foo.omega FROM tab_foo ");
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// A full select statement made individual clauses
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compare(__LINE__,
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custom_query(sqlpp::select(), select_flags(sqlpp::distinct), select_columns(foo.omega),
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from(foo.join(bar).on(foo.omega == bar.alpha)), where(bar.alpha > 17), group_by(foo.omega),
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having(avg(bar.alpha) > 19), order_by(foo.omega.asc()), sqlpp::limit(10u), sqlpp::offset(100u)),
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"SELECT DISTINCT tab_foo.omega FROM tab_foo INNER JOIN tab_bar ON (tab_foo.omega=tab_bar.alpha) WHERE "
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"(tab_bar.alpha>17) GROUP BY tab_foo.omega HAVING (AVG(tab_bar.alpha)>19) ORDER BY tab_foo.omega ASC "
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"LIMIT 10 OFFSET 100");
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// A full select statement made individual clauses
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compare(
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__LINE__,
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custom_query(sqlpp::select(), dynamic_select_flags(db, sqlpp::distinct), dynamic_select_columns(db, foo.omega),
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dynamic_from(db, foo.join(bar).on(foo.omega == bar.alpha)), dynamic_where(db, bar.alpha > 17),
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dynamic_group_by(db, foo.omega), dynamic_having(db, avg(bar.alpha) > 19),
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dynamic_order_by(db, foo.omega.asc(), foo.psi.order(sqlpp::sort_type::desc)),
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sqlpp::dynamic_limit(db), sqlpp::dynamic_offset(db)),
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"SELECT DISTINCT tab_foo.omega FROM tab_foo INNER JOIN tab_bar ON (tab_foo.omega=tab_bar.alpha) WHERE "
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"(tab_bar.alpha>17) GROUP BY tab_foo.omega HAVING (AVG(tab_bar.alpha)>19) ORDER BY tab_foo.omega "
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"ASC,tab_foo.psi DESC ");
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// A pragma query for sqlite
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compare(__LINE__,
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custom_query(sqlpp::verbatim("PRAGMA user_version")).with_result_type_of(select(sqlpp::value(1).as(pragma))),
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" PRAGMA user_version");
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// An insert from select for postgresql
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const auto x = 17;
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compare(__LINE__,
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custom_query(insert_into(foo).columns(foo.omega),
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select(sqlpp::value(x).as(foo.omega))
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.from(foo)
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.where(not exists(select(foo.omega).from(foo).where(foo.omega == x)))),
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"INSERT INTO tab_foo (omega) "
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"SELECT 17 AS omega FROM tab_foo "
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"WHERE (NOT EXISTS(SELECT tab_foo.omega FROM tab_foo WHERE (tab_foo.omega=17)))");
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return 0;
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}
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