public BookLoanModel Insert(BookLoanModel bookLoanModel)
{
BookLoanEntity bookLoanEntity = _mapper.Map <BookLoanEntity>(bookLoanModel);
bookLoanEntity.KeyId = Guid.NewGuid( );
bookLoanEntity.BookId = _bookBusiness.GetIdBookByKeyId(bookLoanModel.BookKeyId);
bookLoanEntity.ReaderId = _readerBusiness.GetIdBookByKeyId(bookLoanModel.ReaderKeyId);
bookLoanEntity.ReturnDate = null;
bookLoanEntity.ReturnFeedback = null;
bookLoanEntity = _repository.Insert(bookLoanEntity);
BookLoanModel bookLoan = _mapper.Map <BookLoanModel>(bookLoanEntity);
bookLoan.BookKeyId = bookLoanModel.BookKeyId;
bookLoan.ReaderKeyId = bookLoanModel.ReaderKeyId;
return(bookLoan);
}