how do i create a query on the size of an image?
for example:
class Image(models.Model):
image = models.ImageField(upload_to=upload_to('images'), db_index=True)
if i try something like:
for image in Image.objects.filter(image__height_field__gte=100):
# do something
i get the following error:
django.core.exceptions.FieldError: Join on field 'image' not permitted.
am i just missing something?
thanks.
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