def get(self, book_id=None):
#if a book id is sent, return the book
if book_id:
#if book not found will cause an error
try:
book = ndb.Key(urlsafe=book_id).get()
#make sure is book and not customer
assert Book.is_book(book)
self.write_json(book.to_json())
except:
#error on not found
self.response.set_status(404)
#return list of all books
else:
#if request parameter not sent, will be empty string
#convert to lowercase so we get case insensitive string comparison
#http://stackoverflow.com/questions/319426/how-do-i-do-a-case-insensitive-string-comparison-in-python
checked_out_parameter = self.request.get('checkedIn').lower()
#just show books that are not checked in
if checked_out_parameter == 'false':
books = Book.query(Book.checkedIn == False).fetch()
#just show books that are checkedIn
elif checked_out_parameter == 'true':
books = Book.query(Book.checkedIn == True).fetch()
#show all books
else:
books = Book.all()
self.write_json(Book.all_to_json(books))
def books_all():
bs = Book.all()
return json_response([b.json() for b in bs])
def get(self):
books = Book.all().order('-order')
self.response.out.write(simplejson.dumps([m.to_dict() for m in books]))
member.name = name
member.save()
print('Details updated successfully')
elif option == '5':
member_id = input('Member ID: ')
if confirm():
member = Member.find_with_alert(member_id)
Member.delete(member_id)
print('Member deleted successfully')
elif option == '6':
print('=' * 80)
print(f"Sr.No. Book ID Name{' '*26}Author{' '*14}Available")
print('=' * 80)
for index, book in enumerate(Book.all(), start=1):
print(
f'{str(index).ljust(8)}{str(book.record_id).ljust(7)}{book.name.ljust(30)}{book.author.ljust(20)}{book.available}'
)
elif option == '7':
name = input('Book name: ')
author_name = input('Author name: ')
available = input('Available book count: ')
if confirm():
book = Book(name, author_name, available)
book.save()
print('Book added successfully')
elif option == '8':
book_id = input('Book ID: ')
def delete_all_books(cls):
books = Book.all()
for book in books:
ndb.Key(urlsafe=book.key.urlsafe()).delete()
def refill():
bs = Book.all()
for b in bs:
b.fill_douban()
def all_books():
bs = Book.all()
print('all books', bs)
