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64c4ba029f
I think there was a risk of wrong_t based static_asserts firing, if the template parameters are used. Anyway, this is shorter.
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
/*
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* Copyright (c) 2013-2014, 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, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice, this
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* list of conditions and the following disclaimer in the documentation and/or
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* 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
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SQLPP_ALL_OF_H
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#define SQLPP_ALL_OF_H
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#include <sqlpp11/interpret.h>
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#include <sqlpp11/alias.h>
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#include <sqlpp11/multi_column.h>
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namespace sqlpp
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{
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template<typename Table>
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struct all_of_t
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{
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using _column_tuple_t = typename Table::_column_tuple_t;
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template<typename AliasProvider>
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detail::copy_tuple_args_t<multi_column_alias_t, AliasProvider, _column_tuple_t> as(const AliasProvider& alias)
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{
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return ::sqlpp::multi_column(_column_tuple_t{}).as(alias);
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}
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};
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template<typename Table>
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auto all_of(Table t) -> all_of_t<Table>
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{
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return {};
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}
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template<typename Context, typename Table>
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struct serializer_t<Context, all_of_t<Table>>
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{
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using T = all_of_t<Table>;
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static Context& _(const T& t, const Context&)
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{
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static_assert(wrong_t<serializer_t>::value, "all_of(table) does not seem to be used in select");
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}
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};
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}
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#endif
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