134 lines
5.2 KiB
C++
134 lines
5.2 KiB
C++
#ifndef QUERY_RESULT_PARAMETER_BINDER_HPP
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#define QUERY_RESULT_PARAMETER_BINDER_HPP
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#include "matador/utils/access.hpp"
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#include "matador/utils/cascade_type.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/types.hpp"
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#include <string>
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namespace matador::sql {
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class result_parameter_binder;
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namespace detail {
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class fk_result_binder
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{
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public:
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explicit fk_result_binder(result_parameter_binder &result_binder);
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template<class Type>
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void bind_result(Type &obj, size_t column_index)
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{
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column_index_ = column_index;
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utils::access::process(*this, obj);
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}
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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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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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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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private:
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size_t column_index_{};
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result_parameter_binder &result_binder_;
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};
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}
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class result_parameter_binder
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{
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public:
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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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data_type_traits<ValueType>::bind_result_value(*this, 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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data_type_traits<Type>::bind_result_value(*this, 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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{
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if (!x.get()) {
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x.reset(new typename Pointer::value_type);
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}
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fk_result_binder_.bind_result(*x, column_index_++);
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}
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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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{
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if (!x.get()) {
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x.reset(new typename Pointer::value_type);
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}
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fk_result_binder_.bind_result(*x, column_index_++);
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}
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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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virtual void bind_result_value(size_t index, char &value) {}
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virtual void bind_result_value(size_t index, short &value) {}
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virtual void bind_result_value(size_t index, int &value) {}
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virtual void bind_result_value(size_t index, long &value) {}
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virtual void bind_result_value(size_t index, long long &value) {}
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virtual void bind_result_value(size_t index, unsigned char &value) {}
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virtual void bind_result_value(size_t index, unsigned short &value) {}
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virtual void bind_result_value(size_t index, unsigned int &value) {}
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virtual void bind_result_value(size_t index, unsigned long &value) {}
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virtual void bind_result_value(size_t index, unsigned long long &value) {}
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virtual void bind_result_value(size_t index, bool &value) {}
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virtual void bind_result_value(size_t index, float &value) {}
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virtual void bind_result_value(size_t index, double &value) {}
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// virtual void bind_result_value(size_t index, matador::time &value) {}
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// virtual void bind_result_value(size_t index, matador::date &value) {}
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virtual void bind_result_value(size_t index, char *value, size_t s) {}
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virtual void bind_result_value(size_t index, std::string &value) {}
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virtual void bind_result_value(size_t index, std::string &value, size_t s) {}
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virtual void bind_result_value(size_t index, any_type &value, data_type_t type, size_t size) {}
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private:
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size_t column_index_{};
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detail::fk_result_binder fk_result_binder_;
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};
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namespace detail {
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template<typename ValueType>
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void fk_result_binder::on_primary_key(const char * /*id*/, ValueType &value, typename std::enable_if<std::is_integral<ValueType>::value && !std::is_same<bool, ValueType>::value>::type *)
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{
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data_type_traits<ValueType>::bind_result_value(result_binder_, column_index_++, value);
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}
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}
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}
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#endif //QUERY_RESULT_PARAMETER_BINDER_HPP
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