54 lines
2.2 KiB
C++
54 lines
2.2 KiB
C++
#include "matador/object/constraints_generator.hpp"
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#include "matador/object/object.hpp"
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#include "matador/object/repository.hpp"
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#include <algorithm>
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namespace matador::object {
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constraints_generator::constraints_generator(std::list<class constraint> &constraints, const repository& repo, object &obj)
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: constraints_(constraints)
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, repo_(repo)
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, obj_(obj) {}
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void constraints_generator::create_pk_constraint(const std::string& name) const {
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class constraint pk_constraint("PK_" + obj_.name());
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pk_constraint.options_ |= utils::constraints::PrimaryKey;
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if (const auto pk_attr = find_attribute_by_name(name); pk_attr != std::end(obj_.attributes_)) {
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pk_constraint.attr_ = &*pk_attr;
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}
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pk_constraint.owner_ = &obj_;
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constraints_.emplace_back(std::move(pk_constraint));
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}
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void constraints_generator::create_fk_constraint(const std::type_index& ti, const std::string& name) const {
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const auto result = repo_.basic_info(ti);
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if (!result) {
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return;
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}
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const auto *pk_attribute = result.value().get().primary_key_attribute();
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class constraint pk_constraint("FK_" + obj_.name() + "_" + name);
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pk_constraint.options_ |= utils::constraints::ForeignKey;
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if (const auto pk_attr = find_attribute_by_name(name); pk_attr != std::end(obj_.attributes_)) {
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pk_constraint.attr_ = &*pk_attr;
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}
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pk_constraint.owner_ = &obj_;
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pk_constraint.ref_column_name_ = pk_attribute->name();
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pk_constraint.ref_table_name_ = pk_attribute->owner() ? pk_attribute->owner()->name() : "";
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constraints_.emplace_back(std::move(pk_constraint));
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}
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void constraints_generator::create_unique_constraint(const std::string& name) const {
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class constraint pk_constraint("UK_" + obj_.name() + "_" + name);
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pk_constraint.options_ |= utils::constraints::Unique;
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if (const auto pk_attr = find_attribute_by_name(name); pk_attr != std::end(obj_.attributes_)) {
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pk_constraint.attr_ = &*pk_attr;
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}
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pk_constraint.owner_ = &obj_;
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}
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std::list<attribute>::iterator constraints_generator::find_attribute_by_name(const std::string& name) const {
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return std::find_if(std::begin(obj_.attributes_), std::end(obj_.attributes_), [&name](const attribute& elem) {
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return elem.name() == name;
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});
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}
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} |