99 lines
2.8 KiB
C
99 lines
2.8 KiB
C
|
/**
|
||
|
|
* @file VariadicBind.h
|
||
|
|
* @ingroup SQLiteCpp
|
||
|
|
* @brief Convenience function for Statement::bind(...)
|
||
|
|
*
|
||
|
|
* Copyright (c) 2016 Paul Dreik (github@pauldreik.se)
|
||
|
|
* Copyright (c) 2016-2023 Sebastien Rombauts (sebastien.rombauts@gmail.com)
|
||
|
|
* Copyright (c) 2019 Maximilian Bachmann (contact@maxbachmann.de)
|
||
|
|
*
|
||
|
|
* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
|
||
|
|
* or copy at http://opensource.org/licenses/MIT)
|
||
|
|
*/
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#include <SQLiteCpp/Statement.h>
|
||
|
|
|
||
|
|
#if (__cplusplus >= 201402L) || ( defined(_MSC_VER) && (_MSC_VER >= 1900) ) // c++14: Visual Studio 2015
|
||
|
|
#include <tuple>
|
||
|
|
#endif // c++14
|
||
|
|
|
||
|
|
/// @cond
|
||
|
|
#include <utility>
|
||
|
|
#include <initializer_list>
|
||
|
|
|
||
|
|
namespace SQLite
|
||
|
|
{
|
||
|
|
/// @endcond
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Convenience function for calling Statement::bind(...) once for each argument given.
|
||
|
|
*
|
||
|
|
* This takes care of incrementing the index between each calls to bind.
|
||
|
|
*
|
||
|
|
* This feature requires a c++11 capable compiler.
|
||
|
|
*
|
||
|
|
* \code{.cpp}
|
||
|
|
* SQLite::Statement stm("SELECT * FROM MyTable WHERE colA>? && colB=? && colC<?");
|
||
|
|
* SQLite::bind(stm,a,b,c);
|
||
|
|
* //...is equivalent to
|
||
|
|
* stm.bind(1,a);
|
||
|
|
* stm.bind(2,b);
|
||
|
|
* stm.bind(3,c);
|
||
|
|
* \endcode
|
||
|
|
* @param query statement
|
||
|
|
* @param args zero or more args to bind.
|
||
|
|
*/
|
||
|
|
template<class ...Args>
|
||
|
|
void bind(SQLite::Statement& query, const Args& ... args)
|
||
|
|
{
|
||
|
|
int pos = 0;
|
||
|
|
(void)std::initializer_list<int>{
|
||
|
|
((void)query.bind(++pos, std::forward<decltype(args)>(args)), 0)...
|
||
|
|
};
|
||
|
|
}
|
||
|
|
|
||
|
|
#if (__cplusplus >= 201402L) || ( defined(_MSC_VER) && (_MSC_VER >= 1900) ) // c++14: Visual Studio 2015
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Convenience function for calling Statement::bind(...) once for each parameter of a tuple,
|
||
|
|
* by forwarding them to the variadic template
|
||
|
|
*
|
||
|
|
* This feature requires a c++14 capable compiler.
|
||
|
|
*
|
||
|
|
* \code{.cpp}
|
||
|
|
* SQLite::Statement stm("SELECT * FROM MyTable WHERE colA>? && colB=? && colC<?");
|
||
|
|
* SQLite::bind(stm, std::make_tuple(a, b, c));
|
||
|
|
* //...is equivalent to
|
||
|
|
* stm.bind(1,a);
|
||
|
|
* stm.bind(2,b);
|
||
|
|
* stm.bind(3,c);
|
||
|
|
* \endcode
|
||
|
|
* @param query statement
|
||
|
|
* @param tuple tuple with values to bind
|
||
|
|
*/
|
||
|
|
template <typename ... Types>
|
||
|
|
void bind(SQLite::Statement& query, const std::tuple<Types...> &tuple)
|
||
|
|
{
|
||
|
|
bind(query, tuple, std::index_sequence_for<Types...>());
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* \brief Convenience function for calling Statement::bind(...) once for each parameter of a tuple,
|
||
|
|
* by forwarding them to the variadic template. This function is just needed to convert the tuples
|
||
|
|
* to parameter packs
|
||
|
|
*
|
||
|
|
* This feature requires a c++14 capable compiler.
|
||
|
|
*
|
||
|
|
* @param query statement
|
||
|
|
* @param tuple tuple with values to bind
|
||
|
|
*/
|
||
|
|
template <typename ... Types, std::size_t ... Indices>
|
||
|
|
void bind(SQLite::Statement& query, const std::tuple<Types...> &tuple, std::index_sequence<Indices...>)
|
||
|
|
{
|
||
|
|
bind(query, std::get<Indices>(tuple)...);
|
||
|
|
}
|
||
|
|
#endif // c++14
|
||
|
|
|
||
|
|
} // namespace SQLite
|