78 lines
2.9 KiB
C++
78 lines
2.9 KiB
C++
#ifndef MATADOR_CONSTRAINTS_GENERATOR_HPP
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#define MATADOR_CONSTRAINTS_GENERATOR_HPP
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#include "matador/object/constraint.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 <typeindex>
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#include <vector>
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namespace matador::object {
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class object;
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class basic_object_info;
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class repository;
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class constraints_generator final {
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private:
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constraints_generator(std::vector<class constraint> &constraints, const repository &repo, object &obj);
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public:
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constraints_generator() = delete;
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template < typename Type >
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static std::vector<class constraint> generate(const repository &repo, object &obj) {
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Type t;
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return generate(t, repo, obj);
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}
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template < typename Type >
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static std::vector<class constraint> generate(const Type& t, const repository &repo, object &obj) {
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std::vector<class constraint> constraints;
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constraints_generator gen(constraints, repo, obj);
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access::process(gen, t);
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return constraints;
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}
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template < class Type >
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void on_primary_key(const char *id, Type &/*x*/, const utils::primary_key_attribute& /*attr*/ = utils::default_pk_attributes) {
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create_pk_constraint(id);
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}
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static void on_revision(const char * /*id*/, uint64_t &/*rev*/) {}
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template<typename 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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if (utils::is_constraint_set(attr.options() ,utils::constraints::Unique)) {
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create_unique_constraint(id);
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}
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}
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template<class Pointer>
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void on_belongs_to(const char *id, Pointer &/*x*/, const utils::foreign_attributes &/*attr*/) {
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create_fk_constraint( typeid(typename Pointer::value_type), id);
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}
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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(const char * /*id*/, ContainerType &, const char *, 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 * /*id*/, ContainerType & /*cont*/, 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 * /*id*/, ContainerType & /*cont*/, const utils::foreign_attributes &/*attr*/) {}
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private:
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void create_pk_constraint(const std::string& name) const;
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void create_fk_constraint(const std::type_index& ti, const std::string& name) const;
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void create_unique_constraint(const std::string& name) const;
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[[nodiscard]] std::vector<attribute>::iterator find_attribute_by_name(const std::string &name) const;
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private:
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std::vector<class constraint> &constraints_;
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const repository &repo_;
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object &obj_;
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};
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}
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#endif //MATADOR_CONSTRAINTS_GENERATOR_HPP
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