98 lines
3.8 KiB
C++
98 lines
3.8 KiB
C++
#ifndef QUERY_QUERY_RESULT_IMPL_HPP
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#define QUERY_QUERY_RESULT_IMPL_HPP
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#include "matador/utils/access.hpp"
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#include "matador/utils/field_attributes.hpp"
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#include "matador/sql/any_type.hpp"
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#include "matador/sql/record.hpp"
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#include "matador/sql/types.hpp"
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#include <string>
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namespace matador::sql {
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class query_result_impl
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{
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public:
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virtual ~query_result_impl() = default;
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virtual size_t column_count() const = 0;
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virtual void read_value(const char *id, size_t index, char &value) = 0;
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virtual void read_value(const char *id, size_t index, short &value) = 0;
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virtual void read_value(const char *id, size_t index, int &value) = 0;
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virtual void read_value(const char *id, size_t index, long &value) = 0;
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virtual void read_value(const char *id, size_t index, long long &value) = 0;
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virtual void read_value(const char *id, size_t index, unsigned char &value) = 0;
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virtual void read_value(const char *id, size_t index, unsigned short &value) = 0;
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virtual void read_value(const char *id, size_t index, unsigned int &value) = 0;
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virtual void read_value(const char *id, size_t index, unsigned long &value) = 0;
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virtual void read_value(const char *id, size_t index, unsigned long long &value) = 0;
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virtual void read_value(const char *id, size_t index, bool &value) = 0;
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virtual void read_value(const char *id, size_t index, float &value) = 0;
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virtual void read_value(const char *id, size_t index, double &value) = 0;
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// virtual void read_value(const char *id, size_t index, matador::time &value) = 0;
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// virtual void read_value(const char *id, size_t index, matador::date &value) = 0;
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virtual void read_value(const char *id, size_t index, char *value, size_t s) = 0;
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virtual void read_value(const char *id, size_t index, std::string &value) = 0;
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virtual void read_value(const char *id, size_t index, std::string &value, size_t s) = 0;
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virtual void read_value(const char *id, size_t index, any_type &value, data_type_t type, size_t size) = 0;
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template<typename ValueType>
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void on_primary_key(const char *id, ValueType &value, typename std::enable_if<std::is_integral<ValueType>::value && !std::is_same<bool, ValueType>::value>::type* = 0)
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{
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read_value(id, column_index_++, value);
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}
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void on_primary_key(const char *id, std::string &value, size_t size);
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void on_revision(const char *id, unsigned long long &rev);
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template < class Type >
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void on_attribute(const char *id, Type &x, const utils::field_attributes &/*attr*/ = utils::null_attributes)
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{
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read_value(id, column_index_++, x);
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}
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void on_attribute(const char *id, char *value, const utils::field_attributes &attr = utils::null_attributes);
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void on_attribute(const char *id, std::string &value, const utils::field_attributes &attr = utils::null_attributes);
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void on_attribute(const char *id, any_type &value, data_type_t type, const utils::field_attributes &attr = utils::null_attributes);
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template < class Pointer >
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void on_belongs_to(const char *id, Pointer &x, utils::cascade_type) {}
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template < class Pointer >
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void on_has_one(const char *id, Pointer &x, utils::cascade_type) {}
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template<class ContainerType>
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void on_has_many(const char *, ContainerType &, const char *, const char *, utils::cascade_type) {}
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template<class ContainerType>
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void on_has_many(const char *, ContainerType &, utils::cascade_type) {}
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template<class Type>
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void bind(const Type &) {}
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template<class Type>
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bool fetch(Type &obj)
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{
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if (!fetch()) {
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return false;
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}
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matador::utils::access::process(*this, obj);
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return true;
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}
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[[nodiscard]] virtual const char* column(size_t index) const = 0;
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[[nodiscard]] virtual bool fetch() = 0;
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const record& prototype() const;
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protected:
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explicit query_result_impl(record prototype);
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protected:
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size_t column_index_ = 0;
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record prototype_;
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};
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}
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#endif //QUERY_QUERY_RESULT_IMPL_HPP
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