public Speaker CreateSpeaker(Speaker speaker)
{
if (string.IsNullOrEmpty(speaker.SpeakerName))
{
throw new InvalidDataException("Can not create a speaker without a name");
}
else if (speaker.Price <= 0)
{
throw new InvalidDataException("Can not create a speaker without a price");
}
else if (string.IsNullOrEmpty(speaker.SpeakerDescription))
{
throw new InvalidDataException("Can not create a speaker without a description");
}
else if (string.IsNullOrEmpty(speaker.Color))
{
throw new InvalidDataException("Can not create a speaker without a color");
}
if (string.IsNullOrEmpty(speaker.Brand))
{
throw new InvalidDataException("Can not create a speaker without a brand");
}
else if (string.IsNullOrEmpty(speaker.Url))
{
throw new InvalidDataException("Can not create a speaker without an url");
}
return(_speakerRepository.CreateSpeaker(speaker));
}
public Speakers CreateSpeaker(Speakers speakers)
{
if (Isunique(speakers.CompanyName))
{
return(speakerRepository.CreateSpeaker(speakers));
}
return(null);
}
