public static void AddDescription <T>(this IHaveDescriptions <T> entity, string text)
where T : class, IDescription, new()
{
T newDescription = new T();
newDescription.Text = text;
entity.Desriptions.Add(newDescription);
}
public static void EditDescription <T>(this IHaveDescriptions <T> entity, T original, string text)
where T : class, IDescription, new()
{
T newDescription = new T();
newDescription.Text = text;
entity.Desriptions.Remove(original);
entity.Desriptions.Add(newDescription);
}