#acl All:read,write

[[Django1.0]]에서 이미지 썸네일 만들기

[[http://code.djangoproject.com/wiki/ThumbNails|썸네일 만드는 다양한 방법들]]을 참고할 수 있는데, 그 가운데 [[http://superjared.com/entry/django-quick-tips-2-image-thumbnails/|원본저장시 하나의 썸네일을 동시저장]]하는 방법이 간편한 방법이라 할만하다. 하지만, 1.0에서는 동작하지 아니함. 1.0을 위해서는 아래와 같아야 함. 

{{{#!python
from django.db import models

class Photo(models.Model):
    """
    A photo for my site
    """
    title = models.CharField(maxlength=50)
    photo = models.ImageField(upload_to="photos/")
    thumbnail = models.ImageField(upload_to="thumbnails/", editable=False)
    
    def save(self):
        from PIL import Image
        from cStringIO import StringIO
        from django.core.files.uploadedfile import SimpleUploadedFile
    
        # Set our max thumbnail size in a tuple (max width, max height)
        THUMBNAIL_SIZE = (50, 50)
    
        # Open original photo which we want to thumbnail using PIL's Image
        # object
        # image = Image.open(self.photo.name)
        # as of Django 1.2 at least, .name doesn't work.
        image = Image.open(self.photo)
    
        # Convert to RGB if necessary
        # Thanks to Limodou on DjangoSnippets.org
        # http://www.djangosnippets.org/snippets/20/
        if image.mode not in ('L', 'RGB'):
            image = image.convert('RGB')
    
        # We use our PIL Image object to create the thumbnail, which already
        # has a thumbnail() convenience method that contrains proportions.
        # Additionally, we use Image.ANTIALIAS to make the image look better.
        # Without antialiasing the image pattern artifacts may result.
        image.thumbnail(THUMBNAIL_SIZE, Image.ANTIALIAS)
    
        # Save the thumbnail
        temp_handle = StringIO()
        image.save(temp_handle, 'png')
        temp_handle.seek(0)

        # Save to the thumbnail field
        suf = SimpleUploadedFile(os.path.split(self.photo.name)[-1],
                temp_handle.read(), content_type='image/png')
        self.thumbnail.save(suf.name+'.png', suf, save=False)
        
        # Save this photo instance
        super(Photo, self).save()

    class Admin:
        pass

    def __str__(self):
        return self.title
}}}