82 lines
1.8 KiB
C++
82 lines
1.8 KiB
C++
#ifndef QUERY_SCHEMA_HPP
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#define QUERY_SCHEMA_HPP
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#include "matador/sql/column_generator.hpp"
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#include "matador/sql/record.hpp"
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#include <optional>
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#include <string>
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#include <typeindex>
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#include <unordered_map>
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namespace matador::sql {
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class connection;
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struct table_info
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{
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std::string name;
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record prototype;
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void create(connection &conn) const;
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void drop(connection &conn) const;
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};
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class schema
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{
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public:
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using repository = std::unordered_map<std::type_index, table_info>;
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using iterator = repository::iterator;
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using const_iterator = repository::const_iterator;
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explicit schema(std::string name);
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[[nodiscard]] std::string name() const;
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template<typename Type>
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const table_info& attach(const std::string &table_name)
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{
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return attach(std::type_index(typeid(Type)), table_info{table_name, record{column_generator::generate<Type>(*this)}});
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}
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const table_info& attach(std::type_index ti, const table_info& table);
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template<typename Type>
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[[nodiscard]] std::optional<table_info> info() const
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{
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return info(std::type_index(typeid(Type)));
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}
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[[nodiscard]] std::optional<table_info> info(std::type_index ti) const;
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template<typename Type>
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[[nodiscard]] std::pair<std::string, std::string> reference() const
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{
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return reference(std::type_index(typeid(Type)));
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}
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[[nodiscard]] std::pair<std::string, std::string> reference(const std::type_index &ti) const;
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template<typename Type>
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[[nodiscard]] bool exists() const
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{
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return exists(std::type_index(typeid(Type)));
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}
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[[nodiscard]] bool exists(const std::type_index &ti) const;
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iterator begin();
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[[nodiscard]] const_iterator begin() const;
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iterator end();
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[[nodiscard]] const_iterator end() const;
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[[nodiscard]] bool empty() const;
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private:
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std::string name_;
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repository repository_;
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};
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}
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#endif //QUERY_SCHEMA_HPP
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