public void AddBookState(BookState bookState)
{
DataContext.BookStatesList.Add(bookState);
}
public BookReturn(Reader reader, BookState bookState) : base(reader, bookState)
{
bookState.Available = true;
}
protected BookEvent(Reader reader, BookState bookState) : this(reader, bookState, DateTime.Now)
{
}
public BookRent(Reader reader, BookState bookState, DateTime dateTime) : base(reader, bookState, dateTime)
{
bookState.Available = false;
}
protected BookEvent(Reader reader, BookState bookState, DateTime dateTime)
{
Reader = reader;
BookState = bookState;
EventTime = dateTime;
}