django-storages does not delete from S3

Question

Using the django-storages package S3 when I delete an object it does not delete the image from my S3 file storage. There are no other objects I know of that are using the same image. Would anyone know what is happening here is there a default I don't know about? models.py ``` class Product(models.Model): title = models.CharField(max_length=60,) description = models.TextField(max_length=300,) price = models.DecimalField(max_digits=8, decimal_places=2,) qr_url = models.URLField(blank=True, verbose_name="QR Code URL", help_text="Read only generated automatically.") qr_image = models.ImageField( upload_to="qr-codes", height_field="qr_image_height", width_field="qr_image_width", null=True, blank=True, editable=True, verbose_name="QR Code Image" ) qr_image_height = models.PositiveIntegerField(null=True, blank=True, editable=False) qr_image_width = models.PositiveIntegerField(null=True, blank=True, editable=False) #FK category = models.ManyToManyField(ProductCategory) def product_pre_save(se…

Accepted Answer

In your post_save action, you have:

```
...
if instance.qr_image:
        instance.qr_image.delete()
...
```

Which won't work, because you're trying to delete a field, not the instance, which is why Boto won't delete the file.

See this answer for an example of how to delete an individual file with Boto.

django-storages does not delete from S3

Solution

Problem