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Give operators a value

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This commit is contained in:
Roland Bock 2024-07-10 07:50:21 +02:00
parent 08f643460c
commit 2b7e0ee6a5
54 changed files with 957 additions and 1682 deletions
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10
include/sqlpp11/aggregate_functions/max.h
View File

@ -32,9 +32,7 @@
namespace sqlpp
{
template <typename Flag, typename Expr>
struct max_t : public expression_operators<max_t<Flag, Expr>, value_type_of_t<Expr>>,
public aggregate_function_operators<max_t<Flag, Expr>>,
public alias_operators<max_t<Flag, Expr>>
struct max_t
{
using _traits = make_traits<value_type_of_t<Expr>, tag::is_expression, tag::is_selectable>;
using _nodes = detail::type_vector<Expr, aggregate_function>;
@ -54,6 +52,12 @@ namespace sqlpp
Expr _expr;
};
template <typename Flag, typename Expr>
struct value_type_of<max_t<Flag, Expr>>
{
using type = sqlpp::force_optional_t<value_type_of_t<Expr>>;
};
template <typename Context, typename Flag, typename Expr>
Context& serialize(const max_t<Flag, Expr>& t, Context& context)
{

79
include/sqlpp11/alias.h
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@ -1,79 +0,0 @@
#pragma once
/*
* 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.
*/
#include <sqlpp11/type_traits.h>
namespace sqlpp
{
template <typename Expression, typename AliasProvider>
struct expression_alias_t
{
using _traits = make_traits<value_type_of_t<Expression>, tag::is_selectable, tag::is_alias>;
using _nodes = detail::type_vector<Expression>;
#warning Maybe make constructor of expressions private to force construction in the respective functions?
/*
static_assert(is_expression_t<Expression>::value, "invalid argument for an expression alias");
static_assert(not is_alias_t<Expression>::value, "cannot create an alias of an alias");
*/
using _alias_t = typename AliasProvider::_alias_t;
sqlpp::compat::optional<expression_alias_t> if_(bool condition) const
{
return condition ? sqlpp::compat::make_optional(*this) : sqlpp::compat::nullopt;
}
expression_alias_t(Expression expression) : _expression(expression)
{
}
expression_alias_t(const expression_alias_t&) = default;
expression_alias_t(expression_alias_t&&) = default;
expression_alias_t& operator=(const expression_alias_t&) = default;
expression_alias_t& operator=(expression_alias_t&&) = default;
~expression_alias_t() = default;
Expression _expression;
};
template <typename Expression, typename AliasProvider>
struct value_type_of<expression_alias_t<Expression, AliasProvider>>
{
using type = value_type_of_t<Expression>;
};
template <typename Context, typename Expression, typename AliasProvider>
Context& serialize(const expression_alias_t<Expression, AliasProvider>& t, Context& context)
{
serialize_operand(t._expression, context);
context << " AS ";
context << name_of<expression_alias_t<Expression, AliasProvider>>::template char_ptr<Context>();
return context;
}
} // namespace sqlpp

4
include/sqlpp11/alias_operators.h
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@ -26,7 +26,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sqlpp11/alias.h>
#include <sqlpp11/operator/as_expression.h>
namespace sqlpp
{
@ -34,7 +34,7 @@ namespace sqlpp
struct alias_operators
{
template <typename alias_provider>
expression_alias_t<Expr, alias_provider> as(const alias_provider& /*unused*/) const
as_expression<Expr, alias_provider> as(const alias_provider& /*unused*/) const
{
return {*static_cast<const Expr*>(this)};
}

4
include/sqlpp11/auto_alias.h
View File

@ -26,7 +26,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sqlpp11/alias.h>
#include <sqlpp11/operator/as_expression.h>
namespace sqlpp
{
@ -53,7 +53,7 @@ namespace sqlpp
template <typename T>
struct auto_alias_impl<T, typename std::enable_if<has_auto_alias_t<T>::value>::type>
{
using type = expression_alias_t<T, typename T::_auto_alias_t>;
using type = as_expression<T, typename T::_auto_alias_t>;
};
} // namespace detail

2
include/sqlpp11/basic_expression_operators.h
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@ -31,7 +31,7 @@
#include <sqlpp11/bad_expression.h>
#include <sqlpp11/portable_static_assert.h>
#include <sqlpp11/consistent.h>
#include <sqlpp11/alias.h>
#include <sqlpp11/operator/as_expression.h>
#include <sqlpp11/sort_order.h>
#include <sqlpp11/expression_fwd.h>
#include <sqlpp11/in_fwd.h>

4
include/sqlpp11/column.h
View File

@ -26,7 +26,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sqlpp11/alias.h>
#include <sqlpp11/operator/as_expression.h>
#include <sqlpp11/column_fwd.h>
#include <sqlpp11/default_value.h>
#include <sqlpp11/null.h>
@ -75,7 +75,7 @@ namespace sqlpp
}
template <typename alias_provider>
expression_alias_t<column_t, alias_provider> as(const alias_provider& /*unused*/) const
as_expression<column_t, alias_provider> as(const alias_provider& /*unused*/) const
{
return {*this};
}

83
include/sqlpp11/comparison_expression.h
View File

@ -1,83 +0,0 @@
#pragma once
/*
Copyright (c) 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/type_traits.h>
namespace sqlpp
{
template <typename L, typename Operator, typename R>
struct comparison_expression
{
L l;
R r;
};
template <typename L, typename R>
using check_comparison_args = std::enable_if_t<values_are_comparable<L, R>::value>;
#if 0
template <typename L, typename Operator, typename R>
struct nodes_of<comparison_expression<L, Operator, R>>
{
using type = type_vector<L, R>;
};
SQLPP_WRAPPED_STATIC_ASSERT(assert_comparison_operands_are_compatible,
"comparison operands must have compatible value types");
template <typename L, typename R>
constexpr auto check_comparison_args()
{
if constexpr (not values_are_compatible_v<L, R>)
{
return failed<assert_comparison_operands_are_compatible>{};
}
else
{
return succeeded{};
}
}
template <typename L, typename Operator, typename R>
struct value_type_of_t<comparison_expression<L, Operator, R>>
{
using type = bool;
};
template <typename L, typename Operator, typename R>
constexpr auto requires_braces_v<comparison_expression<L, Operator, R>> = true;
template <typename Context, typename L, typename Operator, typename R>
[[nodiscard]] auto to_sql_string(Context& context, const comparison_expression<L, Operator, R>& t)
{
return to_sql_string(context, embrace(t.l)) + Operator::symbol + to_sql_string(context, embrace(t.r));
}
#endif
} // namespace sqlpp

2
include/sqlpp11/expression.h
View File

@ -26,7 +26,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sqlpp11/alias.h>
#include <sqlpp11/operator/as_expression.h>
#include <sqlpp11/data_types/boolean.h>
#include <sqlpp11/expression_fwd.h>
#include <sqlpp11/noop.h>

45
include/sqlpp11/operator.h
View File

@ -33,51 +33,24 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// logical
#include <sqlpp11/operator/logical_and.h>
#include <sqlpp11/operator/logical_not.h>
#include <sqlpp11/operator/logical_or.h>
#include <sqlpp11/operator/logical_expression.h>
// comparison
#include <sqlpp11/operator/equal_to.h>
#include <sqlpp11/operator/greater.h>
#include <sqlpp11/operator/greater_equal.h>
#include <sqlpp11/operator/less.h>
#include <sqlpp11/operator/less_equal.h>
#include <sqlpp11/operator/like.h>
#include <sqlpp11/operator/not_equal_to.h>
#include <sqlpp11/operator/is_distinct_from.h>
#include <sqlpp11/operator/is_not_distinct_from.h>
#include <sqlpp11/operator/is_not_null.h>
#include <sqlpp11/operator/is_null.h>
#include <sqlpp11/operator/comparison_expression.h>
#include <sqlpp11/operator/in_expression.h>
// arithmetic
#include <sqlpp11/operator/divides.h>
#include <sqlpp11/operator/minus.h>
#include <sqlpp11/operator/modulus.h>
#include <sqlpp11/operator/multiplies.h>
#include <sqlpp11/operator/negate.h>
#include <sqlpp11/operator/plus.h>
#include <sqlpp11/operator/arithmetic_expression.h>
// binary
#include <sqlpp11/operator/bit_and.h>
#include <sqlpp11/operator/bit_not.h>
#include <sqlpp11/operator/bit_or.h>
#include <sqlpp11/operator/bit_shift_left.h>
#include <sqlpp11/operator/bit_shift_right.h>
#include <sqlpp11/operator/bit_xor.h>
#include <sqlpp11/operator/bit_expression.h>
// assignment
#include <sqlpp11/operator/assign.h>
#include <sqlpp11/operator/assign_expression.h>
// misc
#include <sqlpp11/operator/as.h>
#include <sqlpp11/operator/as_expression.h>
#include <sqlpp11/operator/asc.h>
#include <sqlpp11/operator/desc.h>
#include <sqlpp11/operator/order.h>
#include <sqlpp11/operator/sort_order_expression.h>
#include <sqlpp11/operator/in.h>
#include <sqlpp11/operator/not_in.h>
#include <sqlpp11/operator/exists.h>
#include <sqlpp11/operator/exists_expression.h>

81
include/sqlpp11/arithmetic_expression.h → include/sqlpp11/operator/arithmetic_expression.h
View File

@ -68,6 +68,20 @@ namespace sqlpp
template <typename L, typename R>
using check_arithmetic_args = std::enable_if_t<has_numeric_value<L>::value and has_numeric_value<R>::value>;
#warning: need to document that this is on purpose (not integral, or unsigned integral, or floating_point) because it is difficult to know for the library to know what the actual result type will be (it is difficult to guess in C++ already, and it is probably different from DB vendor to vendor).
template <typename L, typename Operator, typename R>
struct value_type_of<arithmetic_expression<L, Operator, R>>
: std::conditional<sqlpp::is_optional<value_type_of_t<L>>::value or sqlpp::is_optional<value_type_of_t<R>>::value,
sqlpp::compat::optional<numeric>,
numeric> {};
#warning: As above.
template <typename Operator, typename R>
struct value_type_of<unary_arithmetic_expression<Operator, R>>
: std::conditional<sqlpp::is_optional<value_type_of_t<R>>::value,
sqlpp::compat::optional<numeric>,
numeric> {};
#if 0
template <typename L, typename Operator, typename R>
@ -104,4 +118,71 @@ namespace sqlpp
return to_sql_string(context, t._l) + Operator::symbol + to_sql_string(context, embrace(t._r));
}
#endif
struct plus
{
static constexpr auto symbol = " + ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator+(L l, R r) -> arithmetic_expression<L, plus, R>
{
return {std::move(l), std::move(r)};
}
struct minus
{
static constexpr auto symbol = " - ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator-(L l, R r) -> arithmetic_expression<L, minus, R>
{
return {std::move(l), std::move(r)};
}
struct multiplies
{
static constexpr auto symbol = " * ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator*(L l, R r) -> arithmetic_expression<L, multiplies, R>
{
return {std::move(l), std::move(r)};
}
struct divides
{
static constexpr auto symbol = " / ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator/(L l, R r) -> arithmetic_expression<L, divides, R>
{
return {std::move(l), std::move(r)};
}
struct negate
{
static constexpr auto symbol = "-";
};
template <typename R, typename = check_arithmetic_args<R, R>>
constexpr auto operator-(R r) -> unary_arithmetic_expression<divides, R>
{
return {std::move(r)};
}
struct modulus
{
static constexpr auto symbol = " % ";
};
template <typename L, typename R>
using check_modulus_args = std::enable_if_t<has_integral_value<L>::value and has_integral_value<R>::value>;
template <typename L, typename R, typename = check_modulus_args<L, R>>
constexpr auto operator%(L l, R r) -> arithmetic_expression<L, modulus, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

47
include/sqlpp11/operator/as.h
View File

@ -1,47 +0,0 @@
#pragma once
/*
Copyright (c) 2017, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <type_traits>
#include <sqlpp11/alias.h>
#include <sqlpp11/type_traits.h>
namespace sqlpp
{
template <typename Expr, typename AliasProvider>
using check_as_args = std::enable_if_t<
is_expression_t<Expr>::value and not is_alias_t<Expr>::value and has_name<AliasProvider>::value
>;
template <typename Expr, typename AliasProvider, typename = check_as_args<Expr, AliasProvider>>
constexpr auto as(Expr expr, const AliasProvider&) -> expression_alias_t<Expr, AliasProvider>
{
return {std::move(expr)};
}
} // namespace sqlpp

93
include/sqlpp11/operator/as_expression.h Normal file
View File

@ -0,0 +1,93 @@
#pragma once
/*
Copyright (c) 2017, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <type_traits>
#include <sqlpp11/operator/as_expression.h>
#include <sqlpp11/type_traits.h>
namespace sqlpp
{
template <typename Expression, typename AliasProvider>
struct as_expression
{
using _traits = make_traits<value_type_of_t<Expression>, tag::is_selectable, tag::is_alias>;
using _nodes = detail::type_vector<Expression>;
#warning Maybe make constructor of expressions private to force construction in the respective functions?
/*
static_assert(is_expression_t<Expression>::value, "invalid argument for an expression alias");
static_assert(not is_alias_t<Expression>::value, "cannot create an alias of an alias");
*/
using _alias_t = typename AliasProvider::_alias_t;
sqlpp::compat::optional<as_expression> if_(bool condition) const
{
return condition ? sqlpp::compat::make_optional(*this) : sqlpp::compat::nullopt;
}
as_expression(Expression expression) : _expression(expression)
{
}
as_expression(const as_expression&) = default;
as_expression(as_expression&&) = default;
as_expression& operator=(const as_expression&) = default;
as_expression& operator=(as_expression&&) = default;
~as_expression() = default;
Expression _expression;
};
template <typename Expression, typename AliasProvider>
struct value_type_of<as_expression<Expression, AliasProvider>>
{
using type = value_type_of_t<Expression>;
};
template <typename Context, typename Expression, typename AliasProvider>
Context& serialize(const as_expression<Expression, AliasProvider>& t, Context& context)
{
serialize_operand(t._expression, context);
context << " AS ";
context << name_of<as_expression<Expression, AliasProvider>>::template char_ptr<Context>();
return context;
}
template <typename Expr, typename AliasProvider>
using check_as_args = std::enable_if_t<
is_expression_t<Expr>::value and not is_alias_t<Expr>::value and has_name<AliasProvider>::value
>;
template <typename Expr, typename AliasProvider, typename = check_as_args<Expr, AliasProvider>>
constexpr auto as(Expr expr, const AliasProvider&) -> as_expression<Expr, AliasProvider>
{
return {std::move(expr)};
}
} // namespace sqlpp

39
include/sqlpp11/operator/asc.h
View File

@ -1,39 +0,0 @@
#pragma once
/*
Copyright (c) 2017 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/sort_order_expression.h>
namespace sqlpp
{
template <typename L, typename = check_sort_order_args<L>>
constexpr auto asc(L l) -> sort_order_expression<L>
{
return {l, sort_order::asc};
}
} // namespace sqlpp

0
include/sqlpp11/operator/assign.h → include/sqlpp11/operator/assign_expression.h
View File

44
include/sqlpp11/operator/bit_and.h
View File

@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/bit_expression.h>
namespace sqlpp
{
struct bit_and
{
static constexpr auto symbol = " & ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator&(L l, R r) -> bit_expression<L, bit_and, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

82
include/sqlpp11/bit_expression.h → include/sqlpp11/operator/bit_expression.h
View File

@ -65,6 +65,22 @@ namespace sqlpp
R _r;
};
template <typename L, typename Operator, typename R>
struct value_type_of<bit_expression<L, Operator, R>>
: std::conditional<sqlpp::is_optional<value_type_of_t<L>>::value or sqlpp::is_optional<value_type_of_t<R>>::value,
force_optional_t<value_type_of_t<L>>,
value_type_of_t<L>>
{
};
template <typename Operator, typename R>
struct value_type_of<unary_bit_expression<Operator, R>>
: std::conditional<sqlpp::is_optional<value_type_of_t<R>>::value,
force_optional_t<value_type_of_t<R>>,
value_type_of_t<R>>
{
};
template <typename L, typename R>
using check_bit_expression_args = std::enable_if_t<has_integral_value<L>::value and has_integral_value<R>::value>;
@ -97,4 +113,70 @@ namespace sqlpp
}
#endif
struct bit_and
{
static constexpr auto symbol = " & ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator&(L l, R r) -> bit_expression<L, bit_and, R>
{
return {std::move(l), std::move(r)};
}
struct bit_or
{
static constexpr auto symbol = " | ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator|(L l, R r) -> bit_expression<L, bit_or, R>
{
return {std::move(l), std::move(r)};
}
struct bit_xor
{
static constexpr auto symbol = " ^ ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator^(L l, R r) -> bit_expression<L, bit_xor, R>
{
return {std::move(l), std::move(r)};
}
struct bit_not
{
static constexpr auto symbol = "~";
};
template <typename R, typename = check_bit_expression_args<R, R>>
constexpr auto operator~(R r) -> unary_bit_expression<bit_not, R>
{
return {std::move(r)};
}
struct bit_shift_left
{
static constexpr auto symbol = " << ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator<<(L l, R r) -> bit_expression<L, bit_shift_left, R>
{
return {std::move(l), std::move(r)};
}
struct bit_shift_right
{
static constexpr auto symbol = " >> ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator>>(L l, R r) -> bit_expression<L, bit_shift_right, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/bit_not.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/bit_expression.h>
namespace sqlpp
{
struct bit_not
{
static constexpr auto symbol = "~";
};
template <typename R, typename = check_bit_expression_args<R, R>>
constexpr auto operator~(R r) -> unary_bit_expression<bit_not, R>
{
return {std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/bit_or.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/bit_expression.h>
namespace sqlpp
{
struct bit_or
{
static constexpr auto symbol = " | ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator|(L l, R r) -> bit_expression<L, bit_or, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/bit_shift_left.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/bit_expression.h>
namespace sqlpp
{
struct bit_shift_left
{
static constexpr auto symbol = " << ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator<<(L l, R r) -> bit_expression<L, bit_shift_left, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/bit_shift_right.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/bit_expression.h>
namespace sqlpp
{
struct bit_shift_right
{
static constexpr auto symbol = " >> ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator>>(L l, R r) -> bit_expression<L, bit_shift_right, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/bit_xor.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/bit_expression.h>
namespace sqlpp
{
struct bit_xor
{
static constexpr auto symbol = " ^ ";
};
template <typename L, typename R, typename = check_bit_expression_args<L, R>>
constexpr auto operator^(L l, R r) -> bit_expression<L, bit_xor, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

236
include/sqlpp11/operator/comparison_expression.h Normal file
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@ -0,0 +1,236 @@
#pragma once
/*
Copyright (c) 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/type_traits.h>
namespace sqlpp
{
template <typename L, typename Operator, typename R>
struct comparison_expression
{
L l;
R r;
};
template <typename L, typename R>
using check_comparison_args = std::enable_if_t<values_are_comparable<L, R>::value>;
template <typename L, typename Operator, typename R>
struct value_type_of<comparison_expression<L, Operator, R>>
: std::conditional<sqlpp::is_optional<value_type_of_t<L>>::value or sqlpp::is_optional<value_type_of_t<R>>::value,
sqlpp::compat::optional<boolean>,
boolean>
{
};
struct op_is_null;
struct op_is_not_null;
struct is_distinct_from;
struct is_not_distinct_from;
template <typename L>
struct value_type_of<comparison_expression<L, op_is_null, sqlpp::compat::nullopt_t>> { using type = boolean; };
template <typename L>
struct value_type_of<comparison_expression<L, op_is_not_null, sqlpp::compat::nullopt_t>> { using type = boolean; };
template <typename L, typename R>
struct value_type_of<comparison_expression<L, is_distinct_from, R>> { using type = boolean; };
template <typename L, typename R>
struct value_type_of<comparison_expression<L, is_not_distinct_from, R>> { using type = boolean; };
#if 0
template <typename L, typename Operator, typename R>
struct nodes_of<comparison_expression<L, Operator, R>>
{
using type = type_vector<L, R>;
};
SQLPP_WRAPPED_STATIC_ASSERT(assert_comparison_operands_are_compatible,
"comparison operands must have compatible value types");
template <typename L, typename R>
constexpr auto check_comparison_args()
{
if constexpr (not values_are_compatible_v<L, R>)
{
return failed<assert_comparison_operands_are_compatible>{};
}
else
{
return succeeded{};
}
}
template <typename L, typename Operator, typename R>
struct value_type_of_t<comparison_expression<L, Operator, R>>
{
using type = bool;
};
template <typename L, typename Operator, typename R>
constexpr auto requires_braces_v<comparison_expression<L, Operator, R>> = true;
template <typename Context, typename L, typename Operator, typename R>
[[nodiscard]] auto to_sql_string(Context& context, const comparison_expression<L, Operator, R>& t)
{
return to_sql_string(context, embrace(t.l)) + Operator::symbol + to_sql_string(context, embrace(t.r));
}
#endif
struct less
{
static constexpr auto symbol = " < ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator<(L l, R r) -> comparison_expression<L, less, R>
{
return {std::move(l), std::move(r)};
}
struct less_equal
{
static constexpr auto symbol = " <= ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator<=(L l, R r) -> comparison_expression<L, less_equal, R>
{
return {std::move(l), std::move(r)};
}
struct equal_to
{
static constexpr auto symbol = " = ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator==(L l, R r) -> comparison_expression<L, equal_to, R>
{
return {l, r};
}
struct not_equal_to
{
static constexpr auto symbol = " != ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator!=(L l, R r) -> comparison_expression<L, not_equal_to, R>
{
return {std::move(l), std::move(r)};
}
struct greater_equal
{
static constexpr auto symbol = " >= ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator>=(L l, R r) -> comparison_expression<L, greater_equal, R>
{
return {std::move(l), std::move(r)};
}
struct greater
{
static constexpr auto symbol = " > ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator>(L l, R r) -> comparison_expression<L, greater, R>
{
return {std::move(l), std::move(r)};
}
struct op_is_null
{
static constexpr auto symbol = " IS ";
};
template <typename L>
constexpr auto is_null(L l) -> comparison_expression<L, op_is_null, sqlpp::compat::nullopt_t>
{
return {l};
}
struct op_is_not_null
{
static constexpr auto symbol = " IS NOT ";
};
template <typename L>
constexpr auto is_not_null(L l) -> comparison_expression<L, op_is_not_null, sqlpp::compat::nullopt_t>
{
return {l};
}
struct is_distinct_from
{
static constexpr auto symbol = " IS DISTINCT FROM "; // sql standard
// mysql has NULL-safe equal `<=>` which is_null equivalent to `IS NOT DISTINCT FROM`
// sqlite3 has `IS NOT`
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto is_distinct_from(L l, R r) -> comparison_expression<L, is_distinct_from, R>
{
return {l, r};
}
struct is_not_distinct_from
{
static constexpr auto symbol = " IS NOT DISTINCT FROM "; // sql standard
// mysql has NULL-safe equal `<=>`
// sqlite3 has `IS`
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto is_not_distinct_from(L l, R r) -> comparison_expression<L, is_not_distinct_from, R>
{
return {l, r};
}
struct operator_like
{
static constexpr auto symbol = " LIKE ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto like(L l, R r) -> comparison_expression<L, operator_like, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

39
include/sqlpp11/operator/desc.h
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@ -1,39 +0,0 @@
#pragma once
/*
Copyright (c) 2017 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/sort_order_expression.h>
namespace sqlpp
{
template <typename L, typename = check_sort_order_args<L>>
constexpr auto desc(L l) -> sort_order_expression<L>
{
return {l, sort_order::desc};
}
} // namespace sqlpp

45
include/sqlpp11/operator/divides.h
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@ -1,45 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/arithmetic_expression.h>
namespace sqlpp
{
struct divides
{
static constexpr auto symbol = " / ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator/(L l, R r) -> arithmetic_expression<L, divides, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/equal_to.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct equal_to
{
static constexpr auto symbol = " = ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator==(L l, R r) -> comparison_expression<L, equal_to, R>
{
return {l, r};
}
} // namespace sqlpp

12
include/sqlpp11/operator/exists.h → include/sqlpp11/operator/exists_expression.h
View File

@ -39,6 +39,12 @@ namespace sqlpp
template <typename SubSelect>
using check_exists_arg = std::enable_if_t<is_statement_t<SubSelect>::value and has_result_row_t<SubSelect>::value>;
template <typename SubSelect>
struct value_type_of<exists_t<SubSelect>>
{
using type = boolean;
};
#warning: Document that functions dont come with their default alias any more
template <typename SubSelect, typename = check_exists_arg<SubSelect>>
constexpr auto exists(SubSelect sub_select) -> exists_t<SubSelect>
@ -53,12 +59,6 @@ namespace sqlpp
using type = type_vector<SubSelect>;
};
template <typename SubSelect>
struct value_type_of_t<exists_t<SubSelect>>
{
using type = bool;
};
template <typename Context, typename SubSelect>
[[nodiscard]] auto to_sql_string(Context& context, const exists_t<SubSelect>& t)
{

44
include/sqlpp11/operator/greater.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct greater
{
static constexpr auto symbol = " > ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator>(L l, R r) -> comparison_expression<L, greater, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/greater_equal.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct greater_equal
{
static constexpr auto symbol = " >= ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator>=(L l, R r) -> comparison_expression<L, greater_equal, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

60
include/sqlpp11/operator/in.h
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@ -1,60 +0,0 @@
#pragma once
/*
Copyright (c) 2024, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <tuple>
#include <vector>
#include <sqlpp11/in_expression.h>
namespace sqlpp
{
struct operator_in
{
static constexpr auto symbol = " IN ";
};
#warning: something.in(select(...)); should be suppported as is
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto in(L l, std::tuple<Args...> args) -> in_expression<L, operator_in, std::tuple<Args...>>
{
return {std::move(l), std::move(args)};
}
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto in(L l, Args... args) -> in_expression<L, operator_in, std::tuple<Args...>>
{
return {std::move(l), std::make_tuple(std::move(args)...)};
}
template <typename L, typename Arg, typename = check_in_args<L, Arg>>
constexpr auto in(L l, std::vector<Arg> args) -> in_expression<L, operator_in, std::vector<Arg>>
{
return {std::move(l), std::move(args)};
}
} // namespace sqlpp

153
include/sqlpp11/operator/in_expression.h Normal file
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@ -0,0 +1,153 @@
#pragma once
/*
Copyright (c) 2024, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <tuple>
#include <vector>
#include <sqlpp11/type_traits.h>
#include <sqlpp11/logic.h>
namespace sqlpp
{
template<typename L, typename Operator, typename Container>
struct in_expression
{
L l;
Container container;
};
template <typename L, typename Operator, typename... Args>
struct in_expression<L, Operator, std::tuple<Args...>>
{
L l;
std::tuple<Args...> args;
};
template <typename L, typename... Args>
using check_in_args =
std::enable_if_t<(sizeof...(Args) != 0) and logic::all_t<values_are_comparable<L, Args>::value...>::value>;
template <typename L, typename Operator, typename R>
struct value_type_of<in_expression<L, Operator, std::vector<R>>>
: std::conditional<sqlpp::is_optional<value_type_of_t<L>>::value or sqlpp::is_optional<value_type_of_t<R>>::value,
sqlpp::compat::optional<boolean>,
boolean>
{
};
template <typename L, typename Operator, typename... Args>
struct value_type_of<in_expression<L, Operator, std::tuple<Args...>>>
: std::conditional<sqlpp::is_optional<value_type_of_t<L>>::value or
logic::any_t<sqlpp::is_optional<value_type_of_t<Args>>::value...>::value,
sqlpp::compat::optional<boolean>,
boolean>
{
};
/*
template <typename L, typename... Args>
struct nodes_of<in_t<L, Args...>>
{
using type = type_vector<L, Args...>;
};
template <typename L, typename... Args>
constexpr auto in(L l, Args... args)
-> std::enable_if_t<((sizeof...(Args) > 0) and ... and values_are_compatible_v<L, Args>), in_t<L, Args...>>
{
return in_t<L, Args...>{l, std::tuple{args...}};
}
template <typename L, typename... Args>
constexpr auto requires_braces_v<in_t<L, Args...>> = true;
template <typename Context, typename L, typename... Args>
[[nodiscard]] auto to_sql_string(Context& context, const in_t<L, Args...>& t)
{
if constexpr (sizeof...(Args) == 1)
{
return to_sql_string(context, embrace(t.l)) + " IN(" + to_sql_string(context, std::get<0>(t.args)) + ")";
}
else
{
return to_sql_string(context, embrace(t.l)) + " IN(" + tuple_to_sql_string(context, ", ", t.args) + ")";
}
}
*/
struct operator_in
{
static constexpr auto symbol = " IN ";
};
#warning: something.in(select(...)); should be suppported as is, need to test
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto in(L l, std::tuple<Args...> args) -> in_expression<L, operator_in, std::tuple<Args...>>
{
return {std::move(l), std::move(args)};
}
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto in(L l, Args... args) -> in_expression<L, operator_in, std::tuple<Args...>>
{
return {std::move(l), std::make_tuple(std::move(args)...)};
}
template <typename L, typename Arg, typename = check_in_args<L, Arg>>
constexpr auto in(L l, std::vector<Arg> args) -> in_expression<L, operator_in, std::vector<Arg>>
{
return {std::move(l), std::move(args)};
}
struct operator_not_in
{
static constexpr auto symbol = " NOT IN ";
};
#warning: something.not_in(select(...)); should be suppported as is
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto not_in(L l, std::tuple<Args...> args) -> in_expression<L, operator_not_in, std::tuple<Args...>>
{
return {std::move(l), std::move(args)};
}
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto not_in(L l, Args... args) -> in_expression<L, operator_not_in, std::tuple<Args...>>
{
return {std::move(l), std::make_tuple(std::move(args)...)};
}
template <typename L, typename Arg, typename = check_in_args<L, Arg>>
constexpr auto not_in(L l, std::vector<Arg> args) -> in_expression<L, operator_not_in, std::vector<Arg>>
{
return {std::move(l), std::move(args)};
}
} // namespace sqlpp

46
include/sqlpp11/operator/is_distinct_from.h
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@ -1,46 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct is_distinct_from
{
static constexpr auto symbol = " IS DISTINCT FROM "; // sql standard
// mysql has NULL-safe equal `<=>` which is equivalent to `IS NOT DISTINCT FROM`
// sqlite3 has `IS NOT`
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto is_distinct_from(L l, R r) -> comparison_expression<L, is_distinct_from, R>
{
return {l, r};
}
} // namespace sqlpp

46
include/sqlpp11/operator/is_not_distinct_from.h
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@ -1,46 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct is_not_distinct_from
{
static constexpr auto symbol = " IS NOT DISTINCT FROM "; // sql standard
// mysql has NULL-safe equal `<=>`
// sqlite3 has `IS`
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto is_not_distinct_from(L l, R r) -> comparison_expression<L, is_not_distinct_from, R>
{
return {l, r};
}
} // namespace sqlpp

44
include/sqlpp11/operator/is_not_null.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct is_not
{
static constexpr auto symbol = " IS NOT ";
};
template <typename L>
constexpr auto is_null(L l) -> comparison_expression<L, is_not, sqlpp::compat::nullopt_t>
{
return {l};
}
} // namespace sqlpp

44
include/sqlpp11/operator/is_null.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct is
{
static constexpr auto symbol = " IS ";
};
template <typename L>
constexpr auto is_null(L l) -> comparison_expression<L, is, sqlpp::compat::nullopt_t>
{
return {l};
}
} // namespace sqlpp

44
include/sqlpp11/operator/less.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct less
{
static constexpr auto symbol = " < ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator<(L l, R r) -> comparison_expression<L, less, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/less_equal.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct less_equal
{
static constexpr auto symbol = " <= ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator<=(L l, R r) -> comparison_expression<L, less_equal, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/like.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct operator_like
{
static constexpr auto symbol = " LIKE ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto like(L l, R r) -> comparison_expression<L, operator_like, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/logical_and.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/logical_expression.h>
namespace sqlpp
{
struct logical_and
{
static constexpr auto symbol = " AND ";
};
template <typename L, typename R, typename = check_logical_args<L, R>>
constexpr auto operator and(L l, R r) -> logical_expression<L, logical_and, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

59
include/sqlpp11/logical_expression.h → include/sqlpp11/operator/logical_expression.h
View File

@ -28,7 +28,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <type_traits>
#include <sqlpp11/alias.h>
#include <sqlpp11/operator/as_expression.h>
//#include <sqlpp11/bad_expression.h>
//#include <sqlpp11/embrace.h>
//#include <sqlpp11/to_sql_string.h>
@ -51,7 +51,7 @@ namespace sqlpp
~logical_expression() = default;
template <typename alias_provider>
expression_alias_t<logical_expression, alias_provider> as(const alias_provider& /*unused*/) const
as_expression<logical_expression, alias_provider> as(const alias_provider& /*unused*/) const
{
return {*this};
}
@ -60,6 +60,17 @@ namespace sqlpp
R _r;
};
template <typename L, typename R>
using check_logical_args = std::enable_if_t<has_boolean_value<L>::value and has_boolean_value<R>::value>;
template <typename L, typename Operator, typename R>
struct value_type_of<logical_expression<L, Operator, R>>
: std::conditional<sqlpp::is_optional<value_type_of_t<L>>::value or sqlpp::is_optional<value_type_of_t<R>>::value,
sqlpp::compat::optional<boolean>,
boolean>
{
};
template <typename Operator, typename R>
struct unary_logical_expression
{
@ -74,7 +85,7 @@ namespace sqlpp
~unary_logical_expression() = default;
template <typename alias_provider>
expression_alias_t<unary_logical_expression, alias_provider> as(const alias_provider& /*unused*/) const
as_expression<unary_logical_expression, alias_provider> as(const alias_provider& /*unused*/) const
{
return {*this};
}
@ -82,8 +93,13 @@ namespace sqlpp
R _r;
};
template <typename L, typename R>
using check_logical_args = std::enable_if_t<has_boolean_value<L>::value and has_boolean_value<R>::value>;
template <typename Operator, typename R>
struct value_type_of<unary_logical_expression<Operator, R>>
: std::conditional<sqlpp::is_optional<value_type_of_t<R>>::value,
sqlpp::compat::optional<boolean>,
boolean>
{
};
/*
template <typename L, typename Operator, typename R>
@ -120,4 +136,37 @@ namespace sqlpp
}
*/
struct logical_and
{
static constexpr auto symbol = " AND ";
};
template <typename L, typename R, typename = check_logical_args<L, R>>
constexpr auto operator and(L l, R r) -> logical_expression<L, logical_and, R>
{
return {std::move(l), std::move(r)};
}
struct logical_or
{
static constexpr auto symbol = " OR ";
};
template <typename L, typename R, typename = check_logical_args<L, R>>
constexpr auto operator||(L l, R r) -> logical_expression<L, logical_or, R>
{
return {std::move(l), std::move(r)};
}
struct logical_not
{
static constexpr auto symbol = "NOT ";
};
template <typename R, typename = check_logical_args<R, R>>
constexpr auto operator!(R r) -> unary_logical_expression<logical_not, R>
{
return {std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/logical_not.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/logical_expression.h>
namespace sqlpp
{
struct logical_not
{
static constexpr auto symbol = "NOT ";
};
template <typename R, typename = check_logical_args<R, R>>
constexpr auto operator!(R r) -> unary_logical_expression<logical_not, R>
{
return {std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/logical_or.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/logical_expression.h>
namespace sqlpp
{
struct logical_or
{
static constexpr auto symbol = " OR ";
};
template <typename L, typename R, typename = check_logical_args<L, R>>
constexpr auto operator||(L l, R r) -> logical_expression<L, logical_or, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

45
include/sqlpp11/operator/minus.h
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@ -1,45 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/arithmetic_expression.h>
namespace sqlpp
{
struct minus
{
static constexpr auto symbol = " - ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator-(L l, R r) -> arithmetic_expression<L, minus, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

49
include/sqlpp11/operator/modulus.h
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@ -1,49 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/arithmetic_expression.h>
#include <sqlpp11/type_traits.h>
namespace sqlpp
{
struct modulus
{
static constexpr auto symbol = " % ";
};
template <typename L, typename R>
using check_modulus_args = std::enable_if_t<has_integral_value<L>::value and has_integral_value<R>::value>;
template <typename L, typename R, typename = check_modulus_args<L, R>>
constexpr auto operator%(L l, R r) -> arithmetic_expression<L, modulus, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

45
include/sqlpp11/operator/multiplies.h
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@ -1,45 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/arithmetic_expression.h>
namespace sqlpp
{
struct multiplies
{
static constexpr auto symbol = " * ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator*(L l, R r) -> arithmetic_expression<L, multiplies, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

45
include/sqlpp11/operator/negate.h
View File

@ -1,45 +0,0 @@
#pragma once
/*
Copyright (c) 2017, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/arithmetic_expression.h>
namespace sqlpp
{
struct negate
{
static constexpr auto symbol = "-";
};
template <typename R, typename = check_arithmetic_args<R, R>>
constexpr auto operator-(R r) -> unary_arithmetic_expression<divides, R>
{
return {std::move(r)};
}
} // namespace sqlpp

44
include/sqlpp11/operator/not_equal_to.h
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@ -1,44 +0,0 @@
#pragma once
/*
Copyright (c) 2017- 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/comparison_expression.h>
namespace sqlpp
{
struct not_equal_to
{
static constexpr auto symbol = " != ";
};
template <typename L, typename R, typename = check_comparison_args<L, R>>
constexpr auto operator!=(L l, R r) -> comparison_expression<L, not_equal_to, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

60
include/sqlpp11/operator/not_in.h
View File

@ -1,60 +0,0 @@
#pragma once
/*
Copyright (c) 2024, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <tuple>
#include <vector>
#include <sqlpp11/in_expression.h>
namespace sqlpp
{
struct operator_not_in
{
static constexpr auto symbol = " NOT IN ";
};
#warning: something.in(select(...)); should be suppported as is
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto not_in(L l, std::tuple<Args...> args) -> in_expression<L, operator_not_in, std::tuple<Args...>>
{
return {std::move(l), std::move(args)};
}
template <typename L, typename... Args, typename = check_in_args<L, Args...>>
constexpr auto not_in(L l, Args... args) -> in_expression<L, operator_not_in, std::tuple<Args...>>
{
return {std::move(l), std::make_tuple(std::move(args)...)};
}
template <typename L, typename Arg, typename = check_in_args<L, Arg>>
constexpr auto not_in(L l, std::vector<Arg> args) -> in_expression<L, operator_not_in, std::vector<Arg>>
{
return {std::move(l), std::move(args)};
}
} // namespace sqlpp

39
include/sqlpp11/operator/order.h
View File

@ -1,39 +0,0 @@
#pragma once
/*
Copyright (c) 2024, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <sqlpp11/sort_order_expression.h>
namespace sqlpp
{
template <typename L, typename = check_sort_order_args<L>>
constexpr auto order(L l, sort_order order) -> sort_order_expression<L>
{
return {l, order};
}
} // namespace sqlpp

45
include/sqlpp11/operator/plus.h
View File

@ -1,45 +0,0 @@
#pragma once
/*
Copyright (c) 2016 - 2018, 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:
1. Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
2. 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.
*/
#include <utility>
#include <sqlpp11/arithmetic_expression.h>
namespace sqlpp
{
struct plus
{
static constexpr auto symbol = " + ";
};
template <typename L, typename R, typename = check_arithmetic_args<L, R>>
constexpr auto operator+(L l, R r) -> arithmetic_expression<L, plus, R>
{
return {std::move(l), std::move(r)};
}
} // namespace sqlpp

18
include/sqlpp11/sort_order_expression.h → include/sqlpp11/operator/sort_order_expression.h
View File

@ -78,4 +78,22 @@ namespace sqlpp
}
*/
template <typename L, typename = check_sort_order_args<L>>
constexpr auto asc(L l) -> sort_order_expression<L>
{
return {l, sort_order::asc};
}
template <typename L, typename = check_sort_order_args<L>>
constexpr auto desc(L l) -> sort_order_expression<L>
{
return {l, sort_order::desc};
}
template <typename L, typename = check_sort_order_args<L>>
constexpr auto order(L l, sort_order order) -> sort_order_expression<L>
{
return {l, order};
}
} // namespace sqlpp

2
include/sqlpp11/table_alias.h
View File

@ -26,7 +26,7 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <sqlpp11/alias.h>
#include <sqlpp11/operator/as_expression.h>
#include <sqlpp11/column_fwd.h>
#include <sqlpp11/detail/type_set.h>
#include <sqlpp11/serialize.h>

20
include/sqlpp11/type_traits.h
View File

@ -74,6 +74,21 @@ namespace sqlpp
template <typename T>
using remove_optional_t = typename remove_optional<T>::type;
template <typename T>
struct force_optional
{
using type = sqlpp::compat::optional<T>;
};
template <typename T>
struct force_optional<sqlpp::compat::optional<T>>
{
using type = sqlpp::compat::optional<T>;
};
template <typename T>
using force_optional_t = typename force_optional<T>::type;
template <typename T>
const T& get_value(const T& t)
{
@ -238,9 +253,14 @@ namespace sqlpp
{
};
// A generic numeric type which could be (unsigned) integral or floating point.
struct numeric;
template <typename T>
struct is_numeric : public std::integral_constant<bool, is_integral<T>::value or std::is_floating_point<T>::value>{};
template <>
struct is_numeric<numeric> : public std::true_type{};
template <>
struct is_numeric<sqlpp::compat::nullopt_t> : public std::true_type{};

2
include/sqlpp11/value.h
View File

@ -36,7 +36,7 @@ namespace sqlpp
struct value_t
{
template <typename alias_provider>
expression_alias_t<value_t, alias_provider> as(const alias_provider& /*unused*/) const
as_expression<value_t, alias_provider> as(const alias_provider& /*unused*/) const
{
return {*this};
}

206
tests/core/types/result_row.cpp
View File

@ -112,27 +112,196 @@ int main()
static_assert(sqlpp::has_text_value<std::string>::value, "");
static_assert(sqlpp::has_numeric_value<int>::value, "");
static_assert(sqlpp::has_numeric_value<decltype(bar.intN)>::value, "");
#warning: Need to implement value_type_of for expressions
//static_assert(sqlpp::has_boolean_value<decltype(!bar.boolNn)>::value, "");
//static_assert(sqlpp::has_boolean_value<decltype(bar.boolNn and bar.boolNn)>::value, "");
#if 0
!bar.boolNn;
(bar.boolNn and bar.boolNn).hansi;
like(bar.textN, "hansi").berti;
#endif
(bar.textN == "hansi").berti;
(-bar.intN).berti;
(bar.intN + 7).berti;
(bar.intN << 7).berti;
assign(bar.intN, sqlpp::compat::nullopt).berti;
#warning: These should be moved into comparison type requirement tests, etc.
// Comparing optional value with non-optional value yields optional boolean.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.textN < "hansi")>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.textN <= "hansi")>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.textN == "hansi")>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.textN != "hansi")>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.textN >= "hansi")>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.textN < "hansi")>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
// Comparing non-optional value with non-optional value yields non-optional boolean.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(foo.textNnD < "hansi")>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(foo.textNnD <= "hansi")>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(foo.textNnD == "hansi")>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(foo.textNnD != "hansi")>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(foo.textNnD >= "hansi")>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(foo.textNnD < "hansi")>,
sqlpp::boolean>::value,
"");
// The first exceptions are the operators is_null and is_not_null which always yield non-optional boolean
#warning: Still need to implement is_distinct_from as member function
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_null(bar.textN))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_null(foo.textNnD))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_not_null(bar.textN))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_not_null(foo.textNnD))>,
sqlpp::boolean>::value,
"");
// The other exceptions are the operators is_distinct_from and is_not_distinct_from which always yield non-optional boolean
#warning: Still need to implement is_distinct_from as member function
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_distinct_from(bar.textN, "hansi"))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_distinct_from(foo.textNnD, "hansi"))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_not_distinct_from(bar.textN, sqlpp::compat::make_optional("hansi")))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(is_not_distinct_from(foo.textNnD, sqlpp::compat::make_optional("hansi")))>,
sqlpp::boolean>::value,
"");
// LIKE expressions can be NULL is one of their operands can be NULL.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(like(bar.textN, "hansi"))>, sqlpp::compat::optional<sqlpp::boolean>>::value, "");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(like(foo.textNnD, sqlpp::compat::make_optional("hansi")))>, sqlpp::compat::optional<sqlpp::boolean>>::value, "");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(like(foo.textNnD, "hansi"))>, sqlpp::boolean>::value, "");
#warning: These should be moved into logical type requirement tests, etc.
// Logically combining optional value with non-optional value yields optional boolean.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::compat::make_optional(bar.boolNn) and true)>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::compat::make_optional(bar.boolNn) or true)>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::compat::make_optional(bar.boolNn) and
sqlpp::compat::make_optional(true))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::compat::make_optional(bar.boolNn) or
sqlpp::compat::make_optional(true))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.boolNn and sqlpp::compat::make_optional(true))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.boolNn or sqlpp::compat::make_optional(true))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(not sqlpp::compat::make_optional(bar.boolNn))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
// Logically combining non-optional value with non-optional value yields non-optional boolean.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.boolNn and true)>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.boolNn or true)>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(not bar.boolNn)>,
sqlpp::boolean>::value,
"");
// Arithmetically combining optional value with non-optional value yields optional boolean.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::value(sqlpp::compat::make_optional(7)) + 8)>,
sqlpp::compat::optional<sqlpp::numeric>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::value(8) - sqlpp::compat::make_optional(7))>,
sqlpp::compat::optional<sqlpp::numeric>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::value(sqlpp::compat::make_optional(7)) / sqlpp::compat::make_optional(7))>,
sqlpp::compat::optional<sqlpp::numeric>>::value,
"");
// Same with negate.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(-sqlpp::value(sqlpp::compat::make_optional(7)))>,
sqlpp::compat::optional<sqlpp::numeric>>::value,
"");
// Arithmetically combining non-optional value with non-optional value yields optional boolean.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::value(7) + 8)>,
sqlpp::numeric>::value,
"");
// Same with negate.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(-sqlpp::value(7))>,
sqlpp::numeric>::value,
"");
#warning: Is bit-shifting with NULL "legal"? probably.
#warning: Note that bit-shifting is defined for signed int only
// Bit shifting combining optional value with non-optional value yields optional boolean.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::value(sqlpp::compat::make_optional(7)) << 8)>,
sqlpp::compat::optional<sqlpp::integral>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::value(8) << sqlpp::compat::make_optional(7))>,
sqlpp::compat::optional<sqlpp::integral>>::value,
"");
// In expression with and without optional
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(in(sqlpp::value(7), 7, 8, 9))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(in(sqlpp::value(7), std::vector<int>{7, 8, 9}))>,
sqlpp::boolean>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(in(sqlpp::value(sqlpp::compat::make_optional(7)), 7, 8, 9))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(in(sqlpp::value(sqlpp::compat::make_optional(7)), std::vector<int>{7, 8, 9}))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(in(sqlpp::value(7), sqlpp::compat::make_optional(7), 8, 9))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(in(sqlpp::value(7), std::vector<sqlpp::compat::optional<int>>{7, 8, 9}))>,
sqlpp::compat::optional<sqlpp::boolean>>::value,
"");
// assignment is no value
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(assign(bar.intN, sqlpp::compat::nullopt))>, sqlpp::no_value_t>::value, "");
#warning: This is not the real thing yet
bar.intN.as(bar.textN).berti;
in(bar.intN, 7, 8, 9).berti;
in(bar.intN, std::vector<int>{7, 8, 9}).berti;
max(bar.intN);
sqlpp::max(7);
// as expressions retain the value type of the real thing
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(bar.intN.as(bar.textN))>, sqlpp::value_type_of_t<decltype(bar.intN)>>::value, "");
// max can yield NULL if there are no results.
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(max(bar.intN))>, sqlpp::compat::optional<sqlpp::integral>>::value, "");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(max(foo.textNnD))>, sqlpp::compat::optional<sqlpp::text>>::value, "");
static_assert(std::is_same<sqlpp::value_type_of_t<decltype(sqlpp::max(7))>, sqlpp::compat::optional<sqlpp::integral>>::value, "");
#warning: No magic for NULL in operators, e.g. comparison. It might therefore be reasonable to disallow comparison with optoinal values? But then again, columns can also be NULL, failing to compare to anything. In any case, do not translate `a == nullopt` to `a IS NULL`. Same for parameters.
@ -140,6 +309,7 @@ int main()
#if 0
{
// result fields are as nullable as the expressions they represent
const auto rows = db(select(bar.id, bar.boolNn, bar.intN, seven).from(bar).unconditionally());