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#pragma once
#include <database/insert_query.hpp>
#include <logger/logger.hpp>
#include <type_traits>
#include <sqlite3.h>
template <typename ColumnType, typename... T>
typename std::enable_if<!std::is_same<std::decay_t<ColumnType>, Id>::value, void>::type
update_id(std::tuple<T...>&, sqlite3*)
{}
template <typename ColumnType, typename... T>
typename std::enable_if<std::is_same<std::decay_t<ColumnType>, Id>::value, void>::type
update_id(std::tuple<T...>& columns, sqlite3* db)
{
auto&& column = std::get<ColumnType>(columns);
log_debug("Found an autoincrement col.");
auto res = sqlite3_last_insert_rowid(db);
log_debug("Value is now: ", res);
column.value = static_cast<Id::real_type>(res);
}
template <std::size_t N=0, typename... T>
typename std::enable_if<N < sizeof...(T), void>::type
update_autoincrement_id(std::tuple<T...>& columns, sqlite3* db)
{
using ColumnType = typename std::remove_reference<decltype(std::get<N>(columns))>::type;
update_id<ColumnType>(columns, db);
update_autoincrement_id<N+1>(columns, db);
}
template <std::size_t N=0, typename... T>
typename std::enable_if<N == sizeof...(T), void>::type
update_autoincrement_id(std::tuple<T...>&, sqlite3*)
{}
template <typename... T>
struct Row
{
Row(std::string name):
table_name(std::move(name))
{}
template <typename Type>
typename Type::real_type& col()
{
auto&& col = std::get<Type>(this->columns);
return col.value;
}
template <typename Type>
const auto& col() const
{
auto&& col = std::get<Type>(this->columns);
return col.value;
}
void save(sqlite3* db)
{
InsertQuery query(this->table_name);
query.insert_col_names(this->columns);
query.insert_values(this->columns);
log_debug(query.body);
query.execute(this->columns, db);
update_autoincrement_id(this->columns, db);
}
std::tuple<T...> columns;
std::string table_name;
};
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