73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
#ifndef QUERY_COLUMN_HPP
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#define QUERY_COLUMN_HPP
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#include "matador/sql/types.hpp"
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#include "matador/utils/field_attributes.hpp"
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#include <any>
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namespace matador::sql {
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class column {
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public:
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explicit column(std::string name)
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: name_(std::move(name))
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, attributes_(utils::null_attributes) {}
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template<typename Type>
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explicit column(std::string name, utils::field_attributes attr = utils::null_attributes)
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: column(std::move(name), data_type_traits<Type>::data_type(), attr)
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{}
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column(std::string name, data_type_t type, utils::field_attributes attr = utils::null_attributes);
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[[nodiscard]] const std::string& name() const;
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[[nodiscard]] const utils::field_attributes& attributes() const;
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[[nodiscard]] data_type_t type() const;
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private:
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std::string name_;
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utils::field_attributes attributes_;
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data_type_t type_{};
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std::any value_;
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};
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/**
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* User defined literal to have a shortcut creating a column object
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* @param name Name of the column
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* @param len Length of the column name
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* @return A column object with given name
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*/
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column operator "" _col(const char *name, size_t len);
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column make_column(const std::string &name, data_type_t type, utils::field_attributes attr = utils::null_attributes);
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template < typename Type >
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column make_column(const std::string &name, utils::field_attributes attr = utils::null_attributes)
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{
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return make_column(name, data_type_traits<Type>::builtin_type(0), attr);
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}
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template <>
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column make_column<std::string>(const std::string &name, utils::field_attributes attr);
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template < typename Type >
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column make_pk_column(const std::string &name, size_t size = 0)
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{
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return make_column<Type>(name, { size, utils::constraints::PRIMARY_KEY | utils::constraints::NOT_NULL});
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}
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template <>
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column make_pk_column<std::string>(const std::string &name, size_t size);
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template < typename Type >
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column make_fk_column(const std::string &name, size_t size = 0)
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{
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return make_column<Type>(name, { size, utils::constraints::FOREIGN_KEY });
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}
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template <>
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column make_fk_column<std::string>(const std::string &name, size_t size);
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}
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#endif //QUERY_COLUMN_HPP
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