0
0
mirror of https://github.com/rbock/sqlpp11.git synced 2024-11-16 04:47:18 +08:00
sqlpp11/include/sqlpp11/vendor/single_table.h

81 lines
2.5 KiB
C++

/*
* Copyright (c) 2013, 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.
*/
#ifndef SQLPP_VENDOR_SINGLE_TABLE_H
#define SQLPP_VENDOR_SINGLE_TABLE_H
#include <sqlpp11/type_traits.h>
#include <sqlpp11/detail/type_set.h>
namespace sqlpp
{
namespace vendor
{
// A SINGLE TABLE
template<typename Database, typename Table>
struct single_table_t
{
using _is_single_table = std::true_type;
static_assert(is_table_t<Table>::value, "argument has to be a table");
single_table_t(Table table):
_table(table)
{}
single_table_t(const single_table_t&) = default;
single_table_t(single_table_t&&) = default;
single_table_t& operator=(const single_table_t&) = default;
single_table_t& operator=(single_table_t&&) = default;
~single_table_t() = default;
using _table_set = typename Table::_table_set;
Table _table;
};
struct no_single_table_t
{
using _table_set = ::sqlpp::detail::type_set<>;
};
// Interpreters
template<typename Context, typename Database, typename Table>
struct interpreter_t<Context, single_table_t<Database, Table>>
{
using T = single_table_t<Database, Table>;
static Context& _(const T& t, Context& context)
{
interpret(t._table, context);
return context;
}
};
}
}
#endif