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sqlpp11/tests/Prepared.cpp

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/*
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* Copyright (c) 2013-2015, Roland Bock
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* All rights reserved.
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*
* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
* 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
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* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "Sample.h"
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#include "MockDb.h"
#include "is_regular.h"
#include <sqlpp11/functions.h>
#include <sqlpp11/select.h>
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int Prepared(int, char**)
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{
MockDb db = {};
// test::TabFoo f;
test::TabBar t;
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// empty parameter lists
{
using P = sqlpp::make_parameter_list_t<decltype(t.alpha)>;
static_assert(P::size::value == 0, "type requirement");
}
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// single parameter
{
using P = sqlpp::make_parameter_list_t<decltype(parameter(t.alpha))>;
static_assert(P::size::value == 1, "type requirement");
auto p = P{};
p.alpha = 7;
}
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// single parameter
{
using P = sqlpp::make_parameter_list_t<decltype(parameter(t.beta))>;
static_assert(P::size::value == 1, "type requirement");
auto p = P{};
p.beta = "cheesecake";
}
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// single parameter in expression
{
using P = sqlpp::make_parameter_list_t<decltype(t.alpha == parameter(t.alpha))>;
static_assert(P::size::value == 1, "type requirement");
auto p = P{};
p.alpha = 7;
}
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// single parameter in larger expression
{
using P = sqlpp::make_parameter_list_t<decltype((t.beta.like("%") and t.alpha == parameter(t.alpha)) or
t.gamma != false)>;
static_assert(P::size::value == 1, "type requirement");
auto p = P{};
p.alpha = 7;
}
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// three parameters in expression
{
using P = sqlpp::parameters_of<decltype((t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha)) or
t.gamma != parameter(t.gamma))>;
// FIXME: make some test, that does not depend on detail namespace, but still checks the correct order of the
// parameters
static_assert(std::is_same<P, sqlpp::detail::type_vector<decltype(parameter(t.beta)), decltype(parameter(t.alpha)),
decltype(parameter(t.gamma))>>::value,
"type requirement");
}
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// OK, fine, now create a named parameter list from an expression
{
using Exp =
decltype((t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha)) or t.gamma != parameter(t.gamma));
using P = sqlpp::make_parameter_list_t<Exp>;
P npl;
static_assert(
std::is_same<sqlpp::parameter_value_t<sqlpp::value_type_of<decltype(t.alpha)>>, decltype(npl.alpha)>::value,
"type requirement");
static_assert(
std::is_same<sqlpp::parameter_value_t<sqlpp::value_type_of<decltype(t.beta)>>, decltype(npl.beta)>::value,
"type requirement");
static_assert(
std::is_same<sqlpp::parameter_value_t<sqlpp::value_type_of<decltype(t.gamma)>>, decltype(npl.gamma)>::value,
"type requirement");
}
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// Wonderful, now take a look at the parameter list of a select
{
auto s = select(all_of(t)).from(t).where((t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha)) or
t.gamma != parameter(t.gamma));
auto p = db.prepare(s);
p.params.alpha = 7;
p.params.alpha = sqlpp::tvin(0);
using S = decltype(s);
using P = sqlpp::make_parameter_list_t<S>;
P npl;
static_assert(
std::is_same<sqlpp::parameter_value_t<sqlpp::value_type_of<decltype(t.alpha)>>, decltype(npl.alpha)>::value,
"type requirement");
static_assert(
std::is_same<sqlpp::parameter_value_t<sqlpp::value_type_of<decltype(t.beta)>>, decltype(npl.beta)>::value,
"type requirement");
static_assert(
std::is_same<sqlpp::parameter_value_t<sqlpp::value_type_of<decltype(t.gamma)>>, decltype(npl.gamma)>::value,
"type requirement");
npl.alpha = 7;
auto x = npl;
x = npl;
std::cerr << x.alpha << std::endl;
x = decltype(npl)();
std::cerr << x.alpha << std::endl;
}
// Check that a prepared select is default-constructable
{
auto s = select(all_of(t)).from(t).where((t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha)) or
t.gamma != parameter(t.gamma));
using P = decltype(db.prepare(s));
P p;
}
return 0;
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}