63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
#ifndef QUERY_STATEMENT_IMPL_HPP
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#define QUERY_STATEMENT_IMPL_HPP
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#include "matador/sql/query_context.hpp"
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#include "matador/sql/internal/query_result_impl.hpp"
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#include "matador/sql/interface/parameter_binder.hpp"
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#include "matador/sql/object_parameter_binder.hpp"
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#include "matador/utils/data_type_traits.hpp"
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#include <memory>
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namespace matador::sql {
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class sql_error;
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class statement_impl
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{
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protected:
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explicit statement_impl(query_context query);
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public:
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virtual ~statement_impl() = default;
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virtual utils::result<size_t, utils::error> execute(const interface::parameter_binder& bindings) = 0;
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virtual utils::result<std::unique_ptr<query_result_impl>, utils::error> fetch(const interface::parameter_binder& bindings) = 0;
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template < class Type >
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void bind_object(Type &obj, interface::parameter_binder& bindings) {
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object_parameter_binder object_binder_;
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object_binder_.reset(start_index());
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object_binder_.bind(obj, bindings);
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}
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template < class Type >
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void bind(const size_t pos, Type &val, interface::parameter_binder& bindings) {
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utils::data_type_traits<Type>::bind_value(bindings, adjust_index(pos), val);
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}
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void bind(size_t pos, const char *value, size_t size, interface::parameter_binder& bindings) const;
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void bind(size_t pos, std::string &val, size_t size, interface::parameter_binder& bindings) const;
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virtual void reset() = 0;
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[[nodiscard]] const std::vector<std::string>& bind_vars() const;
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[[nodiscard]] bool is_valid_host_var(const std::string &host_var, size_t pos) const;
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protected:
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[[nodiscard]] virtual size_t start_index() const;
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[[nodiscard]] virtual size_t adjust_index(size_t index) const;
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[[nodiscard]] virtual std::unique_ptr<utils::attribute_writer> create_binder() const = 0;
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protected:
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friend class statement;
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friend class statement_proxy;
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query_context query_;
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};
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}
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#endif //QUERY_STATEMENT_IMPL_HPP
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