public async Task <int?> AttachArcs(AttachSRERequestModel model)
{
var arcs = this.context.Arcs
.Where(i => i.Number >= model.MinRange &&
i.Number <= model.MaxRange &&
i.SeriesId == model.SeriesId)
.ToList();
if (arcs.Count == 0)
{
throw new ArgumentOutOfRangeException();
}
if (model.ParentTypeName == nameof(Volume))
{
var volume = this.context.Volumes
.Include(v => v.ArcsVolumes)
.FirstOrDefault(v => v.Id == model.ParentId);
if (volume == null)
{
throw new ArgumentNullException();
}
foreach (var arc in arcs)
{
var av = new ArcVolume {
Arc = arc, Volume = volume
};
volume.ArcsVolumes.Add(av);
}
await this.context.SaveChangesAsync();
return(arcs.Count);
}
return(null);
}
