Override django's model delete method for bulk deletion

Question

I\'m overriding Django\'s model delete method in order to delete orphan files in the disk for image fields, something like this:

class Image(models.Model):
          


        

Answer 1

It does:

The delete() method does a bulk delete and does not call any delete() methods on your models. It does, however, emit the pre_delete and post_delete signals for all deleted objects (including cascaded deletions).

For that to work, you can override delete method on QuerySet, and then apply that QuerySet as manager:

class ImageQuerySet(models.QuerySet):

    def delete(self, *args, **kwargs):
        for obj in self:
            obj.img.delete()
        super(ImageQuerySet, self).delete(*args, **kwargs)

class Image(models.Model):
    objects = ImageQuerySet.as_manager()
    img = models.ImageField(upload_to=get_image_path)
    ...
    def delete(self, *args, **kwargs):
        self.img.delete()
        super(Image, self).delete(*args, **kwargs)