如何将对象传递给 Python 中的 Google Datastore 函数？

Question

I have the following code, I want to pass a museum object with attributes name and location to the create_booking function? How can I do this?

I tried things like create_booking(user, {name, location}, date, arHr, leHr)

@staticmethod
    def create_booking(user, museum, date, arHr, leHr):
        task = datastore.Entity(DB.client.key("Bookings"))
        if len(DB.get_museum(museum.name)) == 0:
            return "Museum not found", 404
        if DB.get_bookings_number_by_date(museum.name, date)[0] > 10:
            return "To many bookings for this date", 401
        task.update(
            {
                "user": user,
                "museum": {
                    "name": name,
                    "location": location
                },

                "date": date,
                "arriving hour": arHr,
                "leaving hour": leHr
            }
        )
        DB.client.put(task)

Answer 1

From your code, it seems museum is not a dictionary (cos you're doing museum.name ). This means you can't pass it as you have done in your example. You'll have to instantiate it, add the values for the attributes and pass it ie something like (assuming Museum is a KIND)

museum = Museum (name=<name>, location=<location>)
create_booking(user, museum, date, arHr, leHr)

Answer 2

You can use firestore for your project, which is datastore in google cloud. If you already have a Google cloud project, you can use the same project for firestore as well. Please follow the following tutorial about how to create service account and generate key.

Please check the below code sample about how to create the collections, documents and update the fields.

import firebase_admin
from firebase_admin import credentials
from firebase_admin import firestore



# initializations 
cred = credentials.Certificate('XXXXXXXXXXXXXXXXX.json')
firebase_admin.initialize_app(cred)
db = firestore.client()



#adding first data
doc_ref = db.collection('Museum_booking').document('cust1')

doc_ref.set({

    'name':'Steve',
    'lname':'Smith',
    'location':'Florida',
    'age':24


})



#adding second data
doc_ref = db.collection('Museum_booking').document('cust2')
doc_ref.set({

    'name':'John',
    'lname':'Doe',
    'email':'john@gmail.com',
    'location':'Texas',
    'age':26


})