query/source/core/object/restriction.cpp

100 lines
2.5 KiB
C++

#include "matador/object/restriction.hpp"
#include "matador/object/attribute.hpp"
namespace matador::object {
restriction::restriction(std::string name)
: name_(std::move(name)) {}
const std::string & restriction::name() const {
return name_;
}
const class attribute* restriction::attribute() const {
if (std::holds_alternative<class attribute*>(attr_)) {
return std::get<class attribute*>(attr_);
}
return nullptr;
}
std::string restriction::column_name() const {
if (std::holds_alternative<class attribute*>(attr_)) {
return std::get<class attribute*>(attr_)->name();
}
if (std::holds_alternative<std::string>(attr_)) {
return std::get<std::string>(attr_);
}
return "";
}
std::shared_ptr<object> restriction::owner() const {
return owner_;
}
bool restriction::is_primary_key_constraint() const {
return utils::is_constraint_set(options_, utils::constraints::PrimaryKey);
}
bool restriction::is_foreign_key_constraint() const {
return utils::is_constraint_set(options_, utils::constraints::ForeignKey);
}
bool restriction::is_unique_constraint() const {
return utils::is_constraint_set(options_, utils::constraints::Unique);
}
const std::string& restriction::ref_table_name() const {
return ref_table_name_;
}
const std::string& restriction::ref_column_name() const {
return ref_column_name_;
}
std::ostream & operator<<(std::ostream &os, const class restriction &c) {
os << "constraint " << c.name_ << " for column " << c.column_name();
return os;
}
constraint_builder & constraint_builder::constraint(std::string name) {
constraint_name = std::move(name);
return *this;
}
constraint_builder & constraint_builder::primary_key(std::string name) {
column_name = std::move(name);
options_ |= utils::constraints::PrimaryKey;
return *this;
}
constraint_builder & constraint_builder::foreign_key(std::string name) {
column_name = std::move(name);
options_ |= utils::constraints::ForeignKey;
return *this;
}
constraint_builder & constraint_builder::references(std::string table, std::string column) {
ref_table_name = std::move(table);
ref_column_name = std::move(column);
return *this;
}
constraint_builder::operator class restriction() const {
class restriction c;
c.name_ = constraint_name;
c.attr_ = column_name;
c.options_ = options_;
c.ref_column_name_ = ref_column_name;
c.ref_table_name_ = ref_table_name;
return c;
}
constraint_builder constraint(std::string name) {
constraint_builder builder;
return builder.constraint(std::move(name));
}
}