public SectionType(ISpeakersRepository speakerRepo, ITagsRepository tagsRepo)
{
Field(s => s.Id);
Field(s => s.Name);
Field(s => s.Description);
Field(s => s.SlideUrl);
Field(s => s.RestrictSlide);
Field(s => s.IsPanel);
Field(s => s.StartDate);
Field(s => s.EndDate);
Field <ListGraphType <SpeakerType>, List <Speaker> >()
.Name("speakers")
.ResolveAsync(context => speakerRepo.GetSpeakersBySectionIdAsync(context.Source.Id));
Field <ListGraphType <TagType>, List <Tag> >()
.Name("tags")
.ResolveAsync(context => tagsRepo.GetTagsBySectionIdAsync(context.Source.Id));
}