public IEnumerable <Artwork> GetArtworks(string name = null, string artist = null, string tagName = null)
{
if (string.IsNullOrEmpty(name) && string.IsNullOrEmpty(artist) && string.IsNullOrEmpty(tagName))
{
return(_artworkRepository.GetAll());
}
return(_artworkRepository.GetBy(name, artist, tagName));
}