Django newbie :) I'm wondering if you *kind people* could help me work out
how to solve a little issue I'm having :) I'm using *S3 storage* via the
package django-storages <http://django-storages.readthedocs.org/en/latest/>.
The following code gets stuck in an endless loop. I know just enough to
know why, but not how to solve...
*Remembering I'm a newbie*....
This is what the the code I have written does so far....
1) profile gets saves and image uploaded *(without the resize of course)*to S3
-
*PERFECT*
2) the full size image is then read from S3 in the image_resize function
and resized and renamed in the database - *PERFECT*
3) old large image get deleted from S3 - - *PERFECT*
4) it is then saved on this line *self.image.save *and continues it all
over again in a *infinite* loop! - ERROR
def save(self, *args, **kwargs):
# delete old file when replacing by updating the file
try:
this = Profile.objects.get(id=self.id)
if this.image != self.image:
this.image.delete(save=False)
except: pass # when new photo then we do nothing, normal case
super(Profile, self).save(*args, **kwargs)
if self.image:
image_resize(self)
def image_resize(self):
import urllib2 as urllib
from cStringIO import StringIO
from django.core.files.uploadedfile import SimpleUploadedFile
'''Open original photo which we want to resize using PIL's Image
object'''
img_file = urllib.urlopen(self.image.url)
im = StringIO(img_file.read())
resized_image = Image.open(im)
'''Convert to RGB if necessary'''
if resized_image.mode not in ('L', 'RGB'):
resized_image = resized_image.convert('RGB')
'''We use our PIL Image object to create the resized image, which
already
has a thumbnail() convenicne method that constrains proportions.
Additionally, we use Image.ANTIALIAS to make the image look better.
Without antialiasing the image pattern artificats may reulst.'''
resized_image.thumbnail((100, 100), Image.ANTIALIAS)
'''Save the resized image'''
temp_handle = StringIO()
resized_image.save(temp_handle, 'jpeg')
temp_handle.seek(0)
''' Save to the image field'''
suf =
SimpleUploadedFile(os.path.split(self.image.name)[-1].split('.')[0],
temp_handle.read(),
content_type='image/jpeg')
self.image.save('%s.jpg' % suf.name, suf, save=True)
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