AutoMapper Extension for Records

// https://github.com/AutoMapper/AutoMapper/issues/3834

public static class AutoMapperExtensions
{
    public static IMappingExpression<TSource, TDestination> MapRecordMember<TSource, TDestination, TMember>(
        this IMappingExpression<TSource, TDestination> mappingExpression,
        Expression<Func<TDestination, TMember>> destinationMember, Expression<Func<TSource, TMember>> sourceMember)
    {
        var memberInfo = ReflectionHelper.FindProperty(destinationMember);
        string memberName = memberInfo.Name;
        return mappingExpression
            .ForMember(destinationMember, opt => opt.MapFrom(sourceMember))
            .ForCtorParam(memberName, opt => opt.MapFrom(sourceMember));
    }
}

// usage
CreateMap<src, dest>()
    .MapRecordMember(dest => dest.ExtraId, src => src.DbExtraId)
    .ReverseMap();