Files
lms/src/libs/database/impl/EnumSetTraits.hpp
T

54 lines
1.7 KiB
C++

/*
* Copyright (C) 2023 Emeric Poupon
*
* This file is part of LMS.
*
* LMS is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* LMS is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LMS. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <type_traits>
#include <Wt/Dbo/StdSqlTraits.h>
#include "core/EnumSet.hpp"
namespace Wt::Dbo
{
template<typename T>
struct sql_value_traits<lms::core::EnumSet<T>, void> : public sql_value_traits<long long>
{
using ValueType = typename lms::core::EnumSet<T>::ValueType;
static_assert(sizeof(long long) > sizeof(ValueType));
static void bind(lms::core::EnumSet<T> v, SqlStatement* statement, int column, int size)
{
sql_value_traits<long long>::bind(static_cast<long long>(v.getBitfield()), statement, column, size);
}
static bool read(lms::core::EnumSet<T>& v, SqlStatement* statement, int column, int size)
{
long long val;
if (sql_value_traits<long long>::read(val, statement, column, size))
{
v.setBitfield(val);
return true;
}
v.clear();
return false;
}
};
} // namespace Wt::Dbo