91 lines
2.5 KiB
C++
91 lines
2.5 KiB
C++
/**
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* @file ExecuteMany.h
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* @ingroup SQLiteCpp
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* @brief Convenience function to execute a Statement with multiple Parameter sets
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*
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* Copyright (c) 2019 Maximilian Bachmann (github maxbachmann)
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* Copyright (c) 2019 Sebastien Rombauts (sebastien.rombauts@gmail.com)
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*
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* Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
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* or copy at http://opensource.org/licenses/MIT)
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*/
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#pragma once
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#if (__cplusplus >= 201402L) || ( defined(_MSC_VER) && (_MSC_VER >= 1900) ) // c++14: Visual Studio 2015
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#include <SQLiteCpp/Statement.h>
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#include <SQLiteCpp/VariadicBind.h>
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/// @cond
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#include <tuple>
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#include <utility>
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#include <initializer_list>
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namespace SQLite
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{
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/// @endcond
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/**
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* \brief Convenience function to execute a Statement with multiple Parameter sets once for each parameter set given.
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*
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*
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* This feature requires a c++14 capable compiler.
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*
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* \code{.cpp}
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* execute_many(db, "INSERT INTO test VALUES (?, ?)",
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* std::make_tuple(1, "one"),
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* std::make_tuple(2, "two"),
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* std::make_tuple(3, "three")
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* );
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* \endcode
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* @param aDatabase Database to use
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* @param apQuery Query to use with all parameter sets
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* @param aArg first tuple with parameters
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* @param aParams the following tuples with parameters
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*/
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template <typename Arg, typename... Types>
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void execute_many(Database& aDatabase, const char* apQuery, Arg&& aArg, Types&&... aParams)
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{
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SQLite::Statement query(aDatabase, apQuery);
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bind_exec(query, std::forward<decltype(aArg)>(aArg));
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(void)std::initializer_list<int>
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{
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((void)reset_bind_exec(query, std::forward<decltype(aParams)>(aParams)), 0)...
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};
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}
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/**
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* \brief Convenience function to reset a statement and call bind_exec to
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* bind new values to the statement and execute it
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*
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* This feature requires a c++14 capable compiler.
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*
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* @param apQuery Query to use
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* @param aTuple Tuple to bind
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*/
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template <typename ... Types>
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void reset_bind_exec(SQLite::Statement& apQuery, std::tuple<Types...>&& aTuple)
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{
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apQuery.reset();
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bind_exec(apQuery, std::forward<decltype(aTuple)>(aTuple));
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}
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/**
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* \brief Convenience function to bind values a the statement and execute it
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*
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* This feature requires a c++14 capable compiler.
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*
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* @param apQuery Query to use
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* @param aTuple Tuple to bind
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*/
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template <typename ... Types>
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void bind_exec(SQLite::Statement& apQuery, std::tuple<Types...>&& aTuple)
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{
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bind(apQuery, std::forward<decltype(aTuple)>(aTuple));
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while (apQuery.executeStep()) {}
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}
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} // namespace SQLite
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#endif // c++14
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