I'm trying to attach in a model a file that is currently not on the disk, but exist in memory. The model use django-filer, if I pass a regular file it works, with io stream it fails.
def test_save_bytesio():
from PIL import Image
import io
from django.core.files.uploadedfile import InMemoryUploadedFile
from django.core.files.uploadedfile import SimpleUploadedFile
img = Image.new("RGB",(4,4))
thumb_io = io.BytesIO()
img.save(thumb_io, format='JPEG')
# thumb_file = InMemoryUploadedFile(thumb_io, None, '{}_da_ordine.jpg'.format(1), 'image/jpeg',
# thumb_io,None)
thumb_file = DjangoFile(thumb_io.getvalue(), name='gigi')
#thumb_file = DjangoFile(thumb_io, name='gigi')
mymodel = MyModelTosave.objects.create(
name='gigi',
file=thumb_file
)
this is the error stack:
return field.pre_save(obj, add=True)
../../.local/share/virtualenvs/--M2Y9QA9/lib/python3.7/site-packages/django/db/models/fields/files.py:288: in pre_save
file.save(file.name, file.file, save=False)
../../.local/share/virtualenvs/--M2Y9QA9/lib/python3.7/site-packages/filer/fields/multistorage_file.py:121: in save
content.seek(0) # Ensure we upload the whole file
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
self = <File: gigi>
> seek = property(lambda self: self.file.seek)
E AttributeError: 'bytes' object has no attribute 'seek'
../../.local/share/virtualenvs/--M2Y9QA9/lib/python3.7/site-packages/django/core/files/utils.py:20: AttributeError
The problem seems to be this row:
name='gigi',
> file=thumb_file
)
What's the correct way to pass the thumb_file to file field?
Adding this before createing the Djangofile did the trick:
thumb_io.seek(0)