private BookLoanModel ConvertEntityToModel(BookLoanEntity bookLoanEntity) { BookLoanModel bookLoanModel = _mapper.Map <BookLoanModel>(bookLoanEntity); bookLoanModel.BookKeyId = _bookBusiness.GetBookById(bookLoanEntity.BookId).KeyId; bookLoanModel.ReaderKeyId = _readerBusiness.GetReaderById(bookLoanEntity.ReaderId).KeyId; return(bookLoanModel); }