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Re-animated prepared statements

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rbock
2014-06-14 17:44:22 +02:00
parent e775e6165e
commit 3d26f9a686
11 changed files with 60 additions and 82 deletions
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30
tests/PreparedTest.cpp
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@@ -40,37 +40,38 @@ int main()
// empty parameter lists
{
using T = typename sqlpp::detail::get_parameter_tuple<decltype(t.alpha)>::type;
using T = sqlpp::parameters_of<decltype(t.alpha)>;
static_assert(std::is_same<T, std::tuple<>>::value, "type requirement");
}
// single parameter
{
using T = typename sqlpp::detail::get_parameter_tuple<decltype(parameter(t.alpha))>::type;
using T = sqlpp::parameters_of<decltype(parameter(t.alpha))>;
static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
}
// single parameter
{
using T = typename sqlpp::detail::get_parameter_tuple<decltype(parameter(t.alpha))>::type;
using T = sqlpp::parameters_of<decltype(parameter(t.alpha))>;
static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
}
// single parameter in expression
{
using T = typename sqlpp::detail::get_parameter_tuple<decltype(t.alpha == parameter(t.alpha))>::type;
using T = sqlpp::parameters_of<decltype(t.alpha == parameter(t.alpha))>;
static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
}
// single parameter in larger expression
{
using T = typename sqlpp::detail::get_parameter_tuple<decltype(t.beta.like("%") and t.alpha == parameter(t.alpha) or t.gamma != false)>::type;
using T = sqlpp::parameters_of<decltype(t.beta.like("%") and t.alpha == parameter(t.alpha) or t.gamma != false)>;
static_assert(std::is_same<T, std::tuple<decltype(parameter(t.alpha))>>::value, "type requirement");
}
// three parameters in expression
{
using T = typename sqlpp::detail::get_parameter_tuple<decltype(t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha) or t.gamma != parameter(t.gamma))>::type;
using T = sqlpp::parameters_of<decltype(t.beta.like(parameter(t.beta)) and t.alpha == parameter(t.alpha) or t.gamma != parameter(t.gamma))>;
static_assert(std::tuple_size<T>::value == 3, "type requirement");
static_assert(std::is_same<T, std::tuple<decltype(parameter(t.beta)), decltype(parameter(t.alpha)),decltype(parameter(t.gamma))>>::value, "type requirement");
}
@@ -78,11 +79,11 @@ int main()
// 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 T = sqlpp::make_parameter_list_t<Exp>::type;
using T = sqlpp::make_parameter_list_t<Exp>;
T npl;
static_assert(std::is_same<typename decltype(t.alpha)::_value_type::_parameter_t, decltype(npl.alpha)>::value, "type requirement");
static_assert(std::is_same<typename decltype(t.beta)::_value_type::_parameter_t, decltype(npl.beta)>::value, "type requirement");
static_assert(std::is_same<typename decltype(t.gamma)::_value_type::_parameter_t, decltype(npl.gamma)>::value, "type requirement");
static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.alpha)>::_parameter_t, decltype(npl.alpha)>::value, "type requirement");
static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.beta)>::_parameter_t, decltype(npl.beta)>::value, "type requirement");
static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.gamma)>::_parameter_t, decltype(npl.gamma)>::value, "type requirement");
}
// Wonderful, now take a look at the parameter list of a select
@@ -90,12 +91,12 @@ int main()
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);
using S = decltype(s);
using T = sqlpp::make_parameter_list_t<S>::type;
using T = sqlpp::make_parameter_list_t<S>;
T npl;
static_assert(std::is_same<typename decltype(t.alpha)::_value_type::_parameter_t, decltype(npl.alpha)>::value, "type requirement");
static_assert(std::is_same<typename decltype(t.beta)::_value_type::_parameter_t, decltype(npl.beta)>::value, "type requirement");
static_assert(std::is_same<typename decltype(t.gamma)::_value_type::_parameter_t, decltype(npl.gamma)>::value, "type requirement");
static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.alpha)>::_parameter_t, decltype(npl.alpha)>::value, "type requirement");
static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.beta)>::_parameter_t, decltype(npl.beta)>::value, "type requirement");
static_assert(std::is_same<typename sqlpp::value_type_of<decltype(t.gamma)>::_parameter_t, decltype(npl.gamma)>::value, "type requirement");
npl.alpha = 7;
auto x = npl;
x = npl;
@@ -104,6 +105,5 @@ int main()
std::cerr << x.alpha << std::endl;
}
return 0;
}