mirror of
https://github.com/rbock/sqlpp11.git
synced 2024-11-16 12:51:13 +08:00
09f23cea0a
Please use clang-format before submitting code, e.g via the pre-commit supplied in the repo (thanks AndiDog)
124 lines
3.8 KiB
C++
124 lines
3.8 KiB
C++
/*
|
|
* Copyright (c) 2013-2015, 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_UPDATE_H
|
|
#define SQLPP_UPDATE_H
|
|
|
|
#include <sqlpp11/statement.h>
|
|
#include <sqlpp11/connection.h>
|
|
#include <sqlpp11/type_traits.h>
|
|
#include <sqlpp11/parameter_list.h>
|
|
#include <sqlpp11/prepared_update.h>
|
|
#include <sqlpp11/single_table.h>
|
|
#include <sqlpp11/update_list.h>
|
|
#include <sqlpp11/noop.h>
|
|
#include <sqlpp11/where.h>
|
|
|
|
namespace sqlpp
|
|
{
|
|
struct update_name_t
|
|
{
|
|
};
|
|
|
|
struct update_t : public statement_name_t<update_name_t>
|
|
{
|
|
using _traits = make_traits<no_value_t, tag::is_return_value>;
|
|
struct _alias_t
|
|
{
|
|
};
|
|
|
|
template <typename Statement>
|
|
struct _result_methods_t
|
|
{
|
|
using _statement_t = Statement;
|
|
|
|
const _statement_t& _get_statement() const
|
|
{
|
|
return static_cast<const _statement_t&>(*this);
|
|
}
|
|
|
|
// Execute
|
|
template <typename Db, typename Composite>
|
|
auto _run(Db& db, const Composite& composite) const -> decltype(db.update(composite))
|
|
{
|
|
return db.update(composite);
|
|
}
|
|
|
|
template <typename Db>
|
|
auto _run(Db& db) const -> decltype(db.update(this->_get_statement()))
|
|
{
|
|
return db.update(_get_statement());
|
|
}
|
|
|
|
// Prepare
|
|
template <typename Db, typename Composite>
|
|
auto _prepare(Db& db, const Composite& composite) const -> prepared_update_t<Db, Composite>
|
|
{
|
|
return {{}, db.prepare_update(composite)};
|
|
}
|
|
|
|
template <typename Db>
|
|
auto _prepare(Db& db) const -> prepared_update_t<Db, _statement_t>
|
|
{
|
|
return {{}, db.prepare_update(_get_statement())};
|
|
}
|
|
};
|
|
};
|
|
|
|
template <typename Context>
|
|
struct serializer_t<Context, update_name_t>
|
|
{
|
|
using _serialize_check = consistent_t;
|
|
using T = update_name_t;
|
|
|
|
static Context& _(const T&, Context& context)
|
|
{
|
|
context << "UPDATE ";
|
|
|
|
return context;
|
|
}
|
|
};
|
|
|
|
template <typename Database>
|
|
using blank_update_t = statement_t<Database, update_t, no_single_table_t, no_update_list_t, no_where_t<true>>;
|
|
|
|
template <typename Table>
|
|
constexpr auto update(Table table) -> decltype(blank_update_t<void>().single_table(table))
|
|
{
|
|
return {blank_update_t<void>().single_table(table)};
|
|
}
|
|
|
|
template <typename Database, typename Table>
|
|
constexpr auto dynamic_update(const Database&, Table table)
|
|
-> decltype(blank_update_t<Database>().single_table(table))
|
|
{
|
|
static_assert(std::is_base_of<connection, Database>::value, "Invalid database parameter");
|
|
return {blank_update_t<Database>().single_table(table)};
|
|
}
|
|
}
|
|
|
|
#endif
|