public void UpdateTranscripts(List <AcademicTranscript> transcripts)
{
var ids = transcripts.Select(t => t.Id).ToList();
var origins = repository.GetTranscripts(ids);
if (origins.Count != transcripts.Count)
{
throw new Exception("Wrong infomation of transcript");
}
Dictionary <int, AcademicTranscript> originMap = new Dictionary <int, AcademicTranscript>();
origins.ForEach(at => originMap.Add(at.Id, at));
transcripts.ForEach(at =>
{
AcademicTranscript origin = null;
if (originMap.TryGetValue(at.Id, out origin))
{
origin.Score = at.Score;
}
else
{
throw new Exception("Not found a specific row of transcript");
}
});
repository.UpdateTranscripts(origins);
}