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Roland Bock
97 lines
3.5 KiB
C++
97 lines
3.5 KiB
C++
/*
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* Copyright (c) 2013, 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_INSERT_LIST_H
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#define SQLPP_INSERT_LIST_H
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#include <sqlpp11/detail/set.h>
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#include <sqlpp11/detail/serialize_tuple.h>
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#include <sqlpp11/type_traits.h>
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namespace sqlpp
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{
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namespace detail
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{
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template<typename Column>
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struct insert_column
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{
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template<typename Db>
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void serialize(std::ostream& os, Db& db) const
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{
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_column.serialize_name(os, db);
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}
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Column _column;
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};
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}
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template<template<typename> class ProhibitPredicate, typename... Assignment>
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struct insert_list_t
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{
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// check for at least one order expression
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static_assert(sizeof...(Assignment), "at least one select expression required in set()");
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// check for duplicate assignments
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static_assert(not detail::has_duplicates<Assignment...>::value, "at least one duplicate argument detected in set()");
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// check for invalid assignments
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using _assignment_set = typename detail::make_set_if<is_assignment_t, Assignment...>::type;
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static_assert(_assignment_set::size::value == sizeof...(Assignment), "at least one argument is not an assignment in set()");
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// check for prohibited assignments
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using _prohibited_assignment_set = typename detail::make_set_if<ProhibitPredicate, typename Assignment::column_type...>::type;
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static_assert(_prohibited_assignment_set::size::value == 0, "at least one assignment is prohibited by its column definition in set()");
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using _is_insert_list = tag_yes;
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insert_list_t(Assignment... assignment):
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_columns({assignment._lhs}...),
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_values(assignment._rhs...)
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{}
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insert_list_t(const insert_list_t&) = default;
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insert_list_t(insert_list_t&&) = default;
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insert_list_t& operator=(const insert_list_t&) = default;
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insert_list_t& operator=(insert_list_t&&) = default;
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~insert_list_t() = default;
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template<typename Db>
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void serialize(std::ostream& os, Db& db) const
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{
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os << " (";
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detail::serialize_tuple(os, db, _columns, ',');
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os << ") VALUES (";
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detail::serialize_tuple(os, db, _values, ',');
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os << ")";
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}
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std::tuple<detail::insert_column<typename Assignment::column_type>...> _columns;
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std::tuple<typename Assignment::value_type...> _values;
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};
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}
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#endif
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