CODEWITHSUNDEEP
django
Boky
Boky

Reputation: 12064

Getting field value from django database

I have an staticmethod where I save user (if exists) and calculation. 

    @staticmethod
    def save_calculation(user, selection, calculation_data):
        customer = None

        if calculation_data['firstname'] or calculation_data['lastname']:
            customer = Customer()
            customer.title = calculation_data['title']
            customer.firstname = calculation_data['firstname']
            customer.lastname = calculation_data['lastname']
            customer.save()


        n_calculation = Calculations()
        n_calculation.user = user
        n_calculation.category = selection['category_name']
        n_calculation.make = selection['make_name']
        n_calculation.model = selection['model_name']
        n_calculation.purchase_price = selection['purchase_price']
        n_calculation.customer = customer
        n_calculation.save()
        return {'statusCode': 200, 'calculation': n_calculation, 'customer': customer}

And the view, where I want to get the results is as follows : 

def adviced_price(request):

if request.method == 'POST':
    connector = Adapter(Connector)
    selection = Selection(request).to_dict()
    calculation = connector.calculations(request.user, selection, request.POST)

    if 'statusCode' in calculation and calculation['statusCode'] == 200:
        customer = ''
        if 'customer' in calculation:
            customer = calculation['customer']

        price = calculation['calculation']['purchase_price'] # How to get the price
        context = {"calculation_data": calculation['calculation'], 'customer': customer, 'price': price}
        return render(request, 'master/result-calculation.html', context)
    else:
        return
else:
    return HttpResponse('Not POST')

The calculation which I get in the view is as follows : 

{'statusCode': 200, 'calculation': <Calculations: Calculation for user>, 'customer': None}

How can I now get the purchase_price from calculation? I tried with

price = calculation['calculation']['purchase_price']

But I get an error : TypeError: 'Calculations' object is not subscriptable

Any advice?

Upvotes: 0

Views: 38

Answers (1)

Anubhav Agarwal
Anubhav Agarwal

Reputation: 2062

You are returning

{'statusCode': 200, 'calculation': <Calculations: Calculation for user>, 'customer': None}

and assigning it to calculation. Your calculation['calculation'] is Calculation object which does not have __getitem__ method, so u can't use it like dict.

You should instead do

price = calculation['calculation'].purchase_price

Upvotes: 1

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