How to correct my signals call?

[prateek gupta]

Hi All,

I have an admin panel built on Django 2.0.6, Mysql 5.7 and Python 3.6.

Now I have written following signal code in signals.py-

from .models import MerchantStores

from django.db.models.signals import post_save

from django.dispatch import receiver

@receiver(post_save, sender = MerchantStores, weak=False)

def ensure_store_id_exists(sender, **kwargs):

   print ("check fucntion")

   ex = kwargs.get("instance").store_id

   print ("store id:",ex)

   import requests

   URL = "http://example.cloud/rmsservice/resetPin?storeId="+str(ex)

   print("url:",URL)

   data = {'Content-Type': 'application/json',

           'app-id': 'APP_ID',

           'secret-key': 'SECRET_KEY',

           'aid': 'PG'}

   r = requests.post(url=URL, headers=data)

   response_text = r.text

   print(response_text)

And in apps.py I have done following settings-

from django.apps import AppConfig

class AdminappConfig(AppConfig):
    name = 'adminapp'

    def ready(self):
        import adminapp.signals

In above signals I am sending a post request to resetPin api.

I need to send the request once form is saved but my signal is posting request before the save method.

I confirmed the above from server logs. Following is the logs I am getting-

[21/Nov/2018 14:18:03] "GET /jsi18n/ HTTP/1.1" 200 3185

check fucntion

store id: 1533

url: http://example/rmsservice/resetPin?storeId=1533

{"success":false,"code":"8050","message":"Merchant not active","response":null}

[21/Nov/2018 14:18:29] "POST /adminapp/merchantstores/add/ HTTP/1.1" 302 0

[21/Nov/2018 14:18:32] "GET /adminapp/merchantstores/ HTTP/1.1" 200 12659

[21/Nov/2018 14:18:34] "GET /jsi18n/ HTTP/1.1" 200 3185

As per above log, my signal is invoked before teh save() method but it should be after the save() method.
Can anyone please help my to find out what I am doing wrong here?

Thanks,

Prateek

[Yavin Aalto Arba]

Can you show us the view where the save() is invoked?

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[prateek gupta]

@Yavin Aalto Arba

I am using models.py, admin.py for my view, no any customized forms or view.

PFA screen shot for the same.

[Yavin Aalto Arba]

Something doesn't add up. Can you check the ["created"] keyword? What does it say?

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[prateek gupta]

Can you please clear where you saw ["created"] keyword?

[prateek gupta]

I just printed the value of created as 

kwargs.get("created")

And it''s vaulue is True.

[Yavin Aalto Arba]

if created is true it means that the signal is being sent AFTER the instance was saved(I am assuming this is a new object and not an update!)

weird. 

...what happens when you manually do an MerchantStores.objects.create(...) call with all the mandatory details?

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[Saurabh Agrawal]

I am sorry, maybe I am understanding wrong, but isn't log as expected?

Since the signal is run synchronously within the Django request, "POST /adminapp/merchantstores/add/" gets logged, only after the signal has finished running.

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[Pradeep Singh]

how to use place in model based form 

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[Pradeep Singh]

how to use placeholder in model based form

[Yavin Aalto Arba]

Saurabh Agrawal, I am not sure either. That's why I wanted to check if manually the API results are the same. The created keyword returns true so it HAS to have been run after save().

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