105 lines
4.3 KiB
C++
105 lines
4.3 KiB
C++
#ifndef MATADOR_PRIMARY_KEY_ACCESSOR_HPP
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#define MATADOR_PRIMARY_KEY_ACCESSOR_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 <cstdint>
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#include <string>
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namespace matador::utils {
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class foreign_attributes;
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namespace detail {
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template < typename PrimaryKeyType >
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class primary_key_setter {
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public:
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explicit primary_key_setter(const std::string &name, const PrimaryKeyType& value)
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: name_(name)
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, value_(value){}
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void on_primary_key(const char *id, PrimaryKeyType &pk, const utils::primary_key_attribute & = utils::default_pk_attributes) {
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if (id != nullptr && name_ == id) {
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pk = static_cast<PrimaryKeyType>(value_);
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}
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}
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template<typename ValueType>
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static void on_primary_key(const char * /*id*/, ValueType & /*pk*/, const utils::primary_key_attribute & = utils::default_pk_attributes) {}
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static void on_revision(const char * /*id*/, uint64_t & /*rev*/) {}
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template<typename T>
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static void on_attribute(const char * /*id*/, T &, const utils::field_attributes & = utils::null_attributes) {}
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template<class P>
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static void on_belongs_to(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
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template<class P>
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static void on_has_one(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many(const char * /*id*/, C &, const char * /*join_column*/, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many_to_many(const char * /*id*/, C &, const char * /*join_column*/, const char * /*inverse_join_column*/, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many_to_many(const char * /*id*/, C &, const utils::foreign_attributes & ) {}
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private:
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const std::string &name_;
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PrimaryKeyType value_{};
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};
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struct pk_unset_checker {
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const std::string &name;
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bool unset{true};
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template<class V>
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void on_primary_key(const char *id, V &pk, const utils::primary_key_attribute & = utils::default_pk_attributes) {
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if (id != nullptr && name == id) {
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// Your convention: 0 means unset for integer PKs
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unset = (static_cast<std::uint64_t>(pk) == 0ULL);
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}
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}
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static void on_revision(const char * /*id*/, uint64_t & /*rev*/) {}
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template<typename T>
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static void on_attribute(const char * /*id*/, T &, const utils::field_attributes & = utils::null_attributes) {}
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template<class P>
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static void on_belongs_to(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
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template<class P>
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static void on_has_one(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many(const char * /*id*/, C &, const char * /*join_column*/, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many_to_many(const char * /*id*/, C &, const char * /*join_column*/, const char * /*inverse_join_column*/, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many_to_many(const char * /*id*/, C &, const utils::foreign_attributes & ) {}
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};
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struct pk_value_extractor {
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std::uint64_t value{0};
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template<class V>
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void on_primary_key(const char * /*id*/, V &pk, const utils::primary_key_attribute & = utils::default_pk_attributes) {
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value = static_cast<std::uint64_t>(pk);
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}
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static void on_revision(const char * /*id*/, uint64_t & /*rev*/) {}
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template<typename T>
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static void on_attribute(const char * /*id*/, T &, const utils::field_attributes & = utils::null_attributes) {}
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template<class P>
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static void on_belongs_to(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
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template<class P>
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static void on_has_one(const char * /*id*/, P &, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many(const char * /*id*/, C &, const char * /*join_column*/, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many_to_many(const char * /*id*/, C &, const char * /*join_column*/, const char * /*inverse_join_column*/, const utils::foreign_attributes & ) {}
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template<class C>
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static void on_has_many_to_many(const char * /*id*/, C &, const utils::foreign_attributes & ) {}
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};
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}
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template<typename PrimaryKeyType>
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class primary_key_accessor {
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public:
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PrimaryKeyType get() const;
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PrimaryKeyType
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};
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}
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#endif //MATADOR_PRIMARY_KEY_ACCESSOR_HPP
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