53 lines
1.9 KiB
C++
53 lines
1.9 KiB
C++
#ifndef QUERY_FK_VALUE_EXTRACTOR_HPP
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#define QUERY_FK_VALUE_EXTRACTOR_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/utils/primary_key_attribute.hpp"
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#include "matador/utils/types.hpp"
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namespace matador::utils {
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class foreign_attributes;
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}
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namespace matador::query::detail {
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class fk_value_extractor
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{
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public:
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fk_value_extractor() = default;
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template<class Type>
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utils::database_type extract(Type &x)
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{
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access::process(*this, x);
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return value_;
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}
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template<typename ValueType>
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void on_primary_key(const char *, ValueType &pk, const utils::primary_key_attribute& /*attr*/ = utils::default_pk_attributes) {
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value_ = pk;
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}
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static void on_revision(const char * /*id*/, uint64_t &/*rev*/) {}
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template < class Type >
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static void on_attribute(const char * /*id*/, Type &/*x*/, const utils::field_attributes &/*attr*/ = utils::null_attributes) {}
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static void on_attribute(const char * /*id*/, char * /*x*/, const utils::field_attributes &/*attr*/ = utils::null_attributes) {}
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template<class Pointer>
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static void on_belongs_to(const char * /*id*/, Pointer &/*x*/, const utils::foreign_attributes &/*attr*/) {}
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template<class Pointer>
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static void on_has_one(const char * /*id*/, Pointer &/*x*/, const utils::foreign_attributes &/*attr*/) {}
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template<class ContainerType>
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static void on_has_many_to_many(const char *, ContainerType &, const char * /*join_column*/, const char * /*inverse_join_column*/, const utils::foreign_attributes &/*attr*/) {}
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template<class ContainerType>
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static void on_has_many_to_many(const char *, ContainerType &, const utils::foreign_attributes &/*attr*/) {}
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template<class ContainerType>
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static void on_has_many(const char *, ContainerType &, const char * /*join_column*/, const utils::foreign_attributes &/*attr*/) {}
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private:
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utils::database_type value_{};
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};
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}
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#endif //QUERY_FK_VALUE_EXTRACTOR_HPP
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