query/include/matador/query/query_object_resolver.hpp

38 lines
941 B
C++

#ifndef MATADOR_QUERY_OBJECT_LOADER_HPP
#define MATADOR_QUERY_OBJECT_LOADER_HPP
#include "matador/sql/internal/identifier_statement_binder.hpp"
#include "matador/sql/statement.hpp"
#include "matador/object/object_resolver.hpp"
namespace matador::sql {
class executor;
}
namespace matador::query {
template<typename Type>
class query_object_resolver : public object::object_resolver<Type> {
public:
explicit query_object_resolver(sql::statement &&stmt)
: stmt_(std::move(stmt)) {}
std::shared_ptr<Type> resolve(const utils::identifier &id) override;
protected:
sql::statement stmt_;
};
template<typename Type>
std::shared_ptr<Type> query_object_resolver<Type>::resolve(const utils::identifier &id) {
sql::identifier_statement_binder binder(stmt_);
binder.bind(id);
auto result = stmt_.template fetch_one_raw<Type>();
if (!result) {
return nullptr;
}
return *result;
}
}
#endif //MATADOR_QUERY_OBJECT_LOADER_HPP