/* * Copyright (c) 2024, 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 "compare.h" #include "Sample.h" #include SQLPP_CREATE_NAME_TAG(id_count); int SelectColumns(int, char*[]) { const auto foo = test::TabFoo{}; const auto bar = test::TabBar{}; // Single column SQLPP_COMPARE(select(foo.doubleN), "SELECT tab_foo.double_n"); // Two columns SQLPP_COMPARE(select(foo.doubleN, bar.id), "SELECT tab_foo.double_n, tab_bar.id"); // All columns of a table SQLPP_COMPARE(select(all_of(foo)), "SELECT tab_foo.id, tab_foo.text_nn_d, tab_foo.int_n, tab_foo.double_n, tab_foo.u_int_n, tab_foo.blob_n, tab_foo.bool_n"); // All columns of a table plus one more SQLPP_COMPARE(select(all_of(foo), bar.id), "SELECT tab_foo.id, tab_foo.text_nn_d, tab_foo.int_n, tab_foo.double_n, tab_foo.u_int_n, tab_foo.blob_n, tab_foo.bool_n, tab_bar.id"); // One more, plus all columns of a table SQLPP_COMPARE(select(bar.id, all_of(foo)), "SELECT tab_bar.id, tab_foo.id, tab_foo.text_nn_d, tab_foo.int_n, tab_foo.double_n, tab_foo.u_int_n, tab_foo.blob_n, tab_foo.bool_n"); // Column and aggregate function SQLPP_COMPARE(select(foo.doubleN, count(bar.id).as(id_count)), "SELECT tab_foo.double_n, COUNT(tab_bar.id) AS id_count"); // Column aliases SQLPP_COMPARE(select(foo.doubleN.as(sqlpp::alias::o), count(bar.id).as(sqlpp::alias::a)), "SELECT tab_foo.double_n AS o, COUNT(tab_bar.id) AS a"); // Optional column manually SQLPP_COMPARE(select(dynamic(true, bar.id)), "SELECT tab_bar.id"); SQLPP_COMPARE(select(dynamic(false, bar.id)), "SELECT NULL AS id"); #warning: add more optional column tests return 0; }