CODEWITHSUNDEEP
pythondjangodjango-signals
kotmsk
kotmsk

Reputation: 465

Django-signal receiver doesn't work although connected in the ready() method

I'm new in Django, maybe my question has a simple answer, but I'm at deadlock. My signal code lives in signals.py, I use @receiver. According to documentations, I imported the signal submodule inside ready() in apps.py. But it doesn't work =( Could anybody help me?

N.B. If I write my signal code inside models.py everything works well.

Code: signal.py

from django.db.models.signals import post_delete
from django.dispatch import receiver
import os
from .models import ProductImage

def delete_image_from_storage(path):
  if os.path.isfile(path):
     print(path)
     os.remove(path)


@receiver(post_delete, sender=ProductImage)
def post_delete_image(sender, instance, **kawargs):
  if instance.photo:
      print(instance.photo.path)
      delete_image_from_storage(instance.photo.path)

apps.py

from django.apps import AppConfig


class ProductsConfig(AppConfig):
  name = 'products'

  def ready():
      import products.signals

settings.py

INSTALLED_APPS = [
    ...,
    'products',
    ...,
]

Upvotes: 3

Views: 1088

Answers (1)

bruno desthuilliers
bruno desthuilliers

Reputation: 77902

As explained in the FineManual, you need to either explicitely register the appconfig in INSTALLED_APPS ie:

INSTALLED_APPS = [
    ...,
    'products.apps.ProductConfig',
    ...,
]

or declare it as default_app_config in products/__init__.py:

# products/__init__.py
default_app_config = "products.apps.ProductConfig"

Upvotes: 7

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