Method must be called with Class instance

[Carlos García]

Hi, I'm creating a app which do a request to a API and the result is showing on a web page. My code is this:

Models.py

from django.db import models

from django.template import Template, Context

from django.http import HttpResponse

import requests, json

class HotelService(models.Model):

def getAvailAndRates(getAvailAndRatesRQ):

datos = json.dumps(getAvailAndRatesRQ, ensure_ascii=False)

cabeceras = {

'Content-Type': 'application/json',

'action': 'getavailandrates',

'format': 'json',

'Accept-Encoding': 'gzip'

}

url = 'http://connectivity.dingus-services.com/services/v4/hotelservice.ashx'

response = requests.post(url, data=datos, headers=cabeceras)

if response.status_code == 200:

results = response.json()

else:

results = "Error"

return results

views.py

from django.shortcuts import render

from django.http import HttpResponse

from .models import HotelService

import json

# Create your views here.

def show(request):

rq = {"Credentials": {

'UserName': '*******',

'Languaje': 'es',

'Password': '*******',

},

'GetAvailAndRatesRQ': {

'NotGetCancellationInfoCollection': False,

'GetMultiGroupRates': True,

'RQRec':[{

'HotelCode': 'ROL01',

'RQID': 1,

'RoomRQ': [{

'PaxAgeList':[30,

30,],

'CH': 0,

'RQID': 1,

'AD': 2,

'RoomCode': 'FAM',

'CU': 0,

'NoRooms': 1,

'BoardCode': 'TI',

}]

}],

'NotGetChargeInfoCollection': False,

'PromotionCodeList': [],

'GetPromotionsCollection': True,

'DateTo': '2016-11-5',

'IncludedPromotionsInOnlyBar': False,

'DateFrom': '2016-10-30',

'GetHotelRS': False,

'Languaje': 'es',

'GetHotelDetails': False,

'GetHotelsWithoutAllotment': True,

'OnlyBar': False,

'NotGetDailyPriceCollection': True,

'ExactRoomMatch': False,

'GroupRateList': [],

'CustomerCode': 'WEB',

'Criteria': [],

}

}

product = HotelService.getAvailAndRates(rq)

return HttpResponse(product)

It's giving the error: unbound method getAvailAndRates() must be called with HotelService instance as first argument (got WSGIRequest instance instead).

[Tim Graham]

Hi,

This question has nothing to do with django-cms, so in the future please use the https://groups.google.com/forum/#!forum/django-users mailing list, although it's more of a Python question than a Django one.

Anyway, for the solution, please read about @classmethod here: https://docs.python.org/3/library/functions.html#classmethod

[Carlos García]

Thank you and sorry.