65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
#ifndef seafire__server__query_parameter_hxx_
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#define seafire__server__query_parameter_hxx_
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#include <seafire/server/parameters.hxx>
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#include <seafire/server/query-parameters.hxx>
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#include <seafire/server/request.hxx>
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#include <optional>
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namespace seafire::server
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{
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template<parameter_name_t Name, typename ParameterType = string_parameter_t>
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class query_parameter_t
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{
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public:
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using parameter_type = ParameterType;
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using value_type = typename parameter_type::value_type;
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static
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std::string const&
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name()
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{
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static std::string const name{Name};
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return name;
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}
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query_parameter_t(std::optional<value_type> value)
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: value_{std::move(value)}
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{}
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std::optional<value_type> const&
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value() const
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{
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return value_;
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}
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operator std::optional<value_type> const&() const
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{
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return value();
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}
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std::optional<value_type> const*
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operator->() const
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{
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return &value();
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}
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static
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query_parameter_t<Name, ParameterType>
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fetch(request_t& r)
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{
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auto value = r.extensions().use<query_parameters_t>().get(name());
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return std::optional<value_type>{parameter_type::try_parse(value)};
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}
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private:
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std::optional<value_type> value_;
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};
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} // namespace seafire::server
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#endif
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