public async Task <IEnumerable <Speaker>?> GetSpeakersAsync(
[ScopedService] ApplicationDbContext dbContext,
SpeakerByIdDataLoader speakerById,
CancellationToken cancellationToken)
{
if (Session is null)
{
return(null);
}
int[] speakerIds = await dbContext.Sessions
.Where(s => s.Id == Session.Id)
.Include(s => s.SessionSpeakers)
.SelectMany(s => s.SessionSpeakers.Select(t => t.SpeakerId))
.ToArrayAsync();
return(await speakerById.LoadAsync(speakerIds, cancellationToken));
}
public Task <Speaker> GetSpeakerAsync(
[ID(nameof(Speaker))] int id,
SpeakerByIdDataLoader dataLoader,
CancellationToken cancellationToken)
=> dataLoader.LoadAsync(id, cancellationToken);
public async Task <IEnumerable <Speaker> > GetSpeakersByIdAsync(
[ID(nameof(Speaker))] int[] ids,
SpeakerByIdDataLoader dataLoader,
CancellationToken cancellationToken) =>
await dataLoader.LoadAsync(ids, cancellationToken);
public async Task <IEnumerable <Speaker> > GetSpeakersAsync(Session session,
[ScopedService] ApplicationDbContext dbContext, SpeakerByIdDataLoader speakerByIdDataLoader,
CancellationToken cancellationToken)
{
var speakersIds = await dbContext.Sessions.Where(s => s.Id == session.Id)
.Include(s => s.SessionSpeakers)
.SelectMany(s => s.SessionSpeakers.Select(t => t.SpeakerId))
.ToArrayAsync(cancellationToken);
return(await speakerByIdDataLoader.LoadAsync(speakersIds, cancellationToken));
}
public Task <Speaker> GetSpeakerAsync(
SpeakerByIdDataLoader speakerById,
int id,
CancellationToken cancellationToken) =>
speakerById.LoadAsync(id, cancellationToken);
public Task <IReadOnlyList <Speaker> > GetSpeakersByIdAsync(
[ID(nameof(Speaker))] long[] ids,
SpeakerByIdDataLoader dataLoader,
CancellationToken cancellationToken) =>
dataLoader.LoadAsync(ids, cancellationToken);
public Task <Speaker> GetSpeaker(Guid id, SpeakerByIdDataLoader dataLoader, CancellationToken cancellationToken) => dataLoader.LoadAsync(id, cancellationToken);