I am using a custom field to upload image on s3 using django 1.9. I want to delete image from s3 whenever model instance is deleted. I have tried post_delete signal with ImageField's delete() method but since I'm using custom field cannot achieve the result. Any suggestion on how to achieve this?
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from django.db.models.signals import pre_delete
.....
pre_delete.connect(delete_image, dispatch_uid="delete_image")
.....
def delete_image(sender, instance, **kwargs):
for field_name in instance._meta.get_fields():
try:
field = getattr(instance, field_name)
except:
field = None
if isinstance(field, your_custom_field):
your_app_utils.clean_images(field.get_images())

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I'm new to django. can you please explain how can I clean images from the custom field. – amie Feb 21 '18 at 22:43