public static SpeakerInMemory GetInstance()
{
if (SpeakerInMemory.Instance == null)
{
SpeakerInMemory.Instance = new SpeakerInMemory();
}
return(SpeakerInMemory.Instance);
}
public bool Delete(Speaker t)
{
var speaker = SpeakerInMemory.GetInstance().Speakers.FirstOrDefault(s => s.Id == t.Id);
if (speaker == null)
{
return(false);
}
speaker.Deleted = true;
return(true);
}
public Speaker Update(Speaker t)
{
var speaker = SpeakerInMemory.GetInstance().Speakers.FirstOrDefault(s => s.Id == t.Id);
if (speaker == null)
{
return(null);
}
speaker.Birthday = t.Birthday;
speaker.Deleted = t.Deleted;
speaker.Name = t.Name;
speaker.Sessions = t.Sessions;
return(speaker);
}
public Speaker Create(Speaker t)
{
t.Id = new Guid();
SpeakerInMemory.GetInstance().Speakers.Append(t);
return(t);
}
public ICollection <Speaker> FindAllSpeakers()
{
return((ICollection <Speaker>)SpeakerInMemory.GetInstance().Speakers);
}
