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);
}