How to Make Thumbnail in Django with Pillow, Hello there, this night i wanna share simply tutorial how to Make Thumbnail image in Django with Pillow.
This example from my last project:
class Buku(models.Model):
judul = models.CharField(max_length=200)
slug = models.SlugField(max_length=200, unique=True)
cover = models.ImageField(upload_to='covers', null=True, blank=True)
thumbnail = models.ImageField(upload_to='covers/thumbnail', editable=False)
def save(self, *args, **kwargs):
super(Buku, self).save(*args, **kwargs)
if not self.make_thumbnail():
raise Exception('Could not create thumbnail - is the file type valid?')
def make_thumbnail(self):
from cStringIO import StringIO
import os
from django.db import models
from django.core.files.base import ContentFile
from django.core.files.storage import default_storage as storage
from PIL import Image
THUMB_SIZE = (110, 150)
fh = storage.open(self.cover.name, 'r')
try:
image = Image.open(fh)
except:
return False
image.thumbnail(THUMB_SIZE, Image.ANTIALIAS)
fh.close()
thumb_name, thumb_extension = os.path.splitext(self.cover.name)
thumb_extension = thumb_extension.lower()
thumb_filename = thumb_name + '_thumb' + thumb_extension
if thumb_extension in ['.jpg', '.jpeg']:
FTYPE = 'JPEG'
elif thumb_extension == '.gif':
FTYPE = 'GIF'
elif thumb_extension == '.png':
FTYPE = 'PNG'
else:
return False
temp_thumb = StringIO()
image.save(temp_thumb, FTYPE)
temp_thumb.seek(0)
self.thumbnail.save(thumb_filename, ContentFile(temp_thumb.read()), save=False)
temp_thumb.close()
return True
"""
Problem:
maximum recursion depth exceeded while calling a Python object.
>>> With: http://stackoverflow.com/a/23927211/3445802
Solved:
>>> self.thumbnail.save(thumb_filename, ContentFile(temp_thumb.read()), save=True)
TO:
>>> self.thumbnail.save(thumb_filename, ContentFile(temp_thumb.read()), save=False)
"""
