def library_book(ISBN):
useraccount = flaskext.login.current_user
if not useraccount:
return jsonify({"Error":"User not signed in"})
if request.method == 'GET':
#check the database to see if the book is in the user's library
book = Book.get_by_isbn(ISBN)
if book:
if useraccount.get_book(book):
return jsonify(JsonIterable.dictionary(book.to_dict()))
else:
return jsonify({"Message":"This book is not in your library"})
else:
return jsonify({"Message":"Book not found"})
elif request.method == 'POST':
#add the book to the user's library
#If not found, add it to the cache, then to the user's library
book = Book.get_by_isbn(ISBN)
if not book:
return jsonify({"Message":"Book not found"})
else:
if useraccount.get_book(book):
return jsonify({"Message":"This book is already in your library"})
useraccount.add_book(book)
return jsonify({"Message":"Book " + ISBN + " was added to your library"})
elif request.method == 'DELETE':
#remove the book from the user's library
book = Book.get_by_isbn(ISBN)
if not book:
return jsonify({"Message":"Book not found"})
else:
if useraccount.get_book(book):
useraccount.remove_book(book)
return jsonify({"Message":"Successfully deleted " + ISBN + " from your library"})
else:
#this should never be reached
return jsonify({"Error":"Invalid http request"})
def get_book(ISBN):
book = Book.get_by_isbn(ISBN)
if not book:
return jsonify({"Message":"Book not found"})
else:
return jsonify(JsonIterable.dictionary(book.to_dict()))
