public static CardboardProfile CreateNew(PLMPackLibDb db, string code, string name, float thickness)
{
// is already exists ?
if (Exists(db, code))
throw new Exception(string.Format("Cardboard profile with code = {0} already exists", code));
// build new cardboard profile
CardboardProfile cardboardProfile = new CardboardProfile();
cardboardProfile.Code = code;
cardboardProfile.Name = name;
cardboardProfile.Thickness = thickness;
db.CardboardProfiles.Add(cardboardProfile);
db.SaveChanges();
return cardboardProfile;
}