def user_buy_book():
params = get_param()
book_store_name = params.get('book_store_name', None)
book_name = params.get('book_name', None)
user_id = params.get('id', None)
if book_store_name is None or book_name is None or user_id is None:
return {
'result': 'Error!'
}
book_store = BookStore.get(book_store_name)
if book_store is None:
return {
'result': 'Book Store is not found!'
}
price = Book.get_price_by_store_name_book_name(book_store.storeName, book_name)
if price is None:
return {
'result': 'Book is not found!'
}
user = User.get_by_id(user_id)
if user is None:
return {
'result': 'User is not found!'
}
user.cashBalance -= price[0]
book_store.cashBalance += price[0]
user.update()
book_store.update()
purchase = PurchaseHistory(user_id, book_name, book_store_name, price[0], "today")
purchase.insert()
return {
'result': purchage_history_schema.dump(purchase)
}
