mirror of
https://github.com/rbock/sqlpp11.git
synced 2026-01-10 07:02:11 -06:00
84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
/*
|
|
* Copyright (c) 2013-2014, 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_BOOLEAN_EXPRESSION_H
|
|
#define SQLPP_BOOLEAN_EXPRESSION_H
|
|
|
|
#include <sqlpp11/type_traits.h>
|
|
#include <sqlpp11/interpretable.h>
|
|
|
|
namespace sqlpp
|
|
{
|
|
template<typename Database>
|
|
struct boolean_expression_t
|
|
{
|
|
using _traits = make_traits<boolean, tag::is_expression>;
|
|
using _recursive_traits = make_recursive_traits<>;
|
|
|
|
template<typename Expression>
|
|
boolean_expression_t(Expression expression):
|
|
_expression(expression)
|
|
{
|
|
static_assert(is_expression_t<Expression>::value, "boolean_expression requires a boolean expression argument");
|
|
static_assert(is_boolean_t<Expression>::value, "boolean_expression requires a boolean expression argument");
|
|
}
|
|
|
|
boolean_expression_t(const boolean_expression_t&) = default;
|
|
boolean_expression_t(boolean_expression_t&&) = default;
|
|
boolean_expression_t& operator=(const boolean_expression_t&) = default;
|
|
boolean_expression_t& operator=(boolean_expression_t&&) = default;
|
|
~boolean_expression_t() = default;
|
|
|
|
interpretable_t<Database> _expression;
|
|
};
|
|
|
|
template<typename Database, typename T>
|
|
boolean_expression_t<Database> boolean_expression(const Database&, T t)
|
|
{
|
|
return {t};
|
|
}
|
|
|
|
template<typename Database, typename T>
|
|
boolean_expression_t<Database> boolean_expression(T t)
|
|
{
|
|
return {t};
|
|
}
|
|
|
|
template<typename Context, typename Database>
|
|
struct serializer_t<Context, boolean_expression_t<Database>>
|
|
{
|
|
using T = boolean_expression_t<Database>;
|
|
|
|
static Context& _(const T& t, Context& context)
|
|
{
|
|
return serialize(t._expression);
|
|
}
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|