def book_remove(book_id):
b = Book.get(book_id)
if not b:
abort(404)
if not b.is_public:
abort(403)
if current_user.has_book(b):
current_user.books.remove(b)
current_user.save()
return redirect(url_for("main"))
def book_get(book_id):
b = Book.get(book_id)
if not b:
abort(404)
if not b.is_public:
abort(403)
if not current_user.has_book(b):
current_user.books.append(b)
current_user.save()
return redirect(url_for("public"))