You can define image upload path at runtime (check manual for
ImageField)
def get_photo_path(instance, filename):
return 'static/upload_to/photos/%s' % instance.name
class ProductImage(models.Model):
name = models.CharField(max_length=50)
file = models.ImageField(upload_to= get_photo_path)
...
In my projects i don't use additional field for thumbnails
Because i need thumbnails in different sizes
So i use property for that
# If i don't allready have thumbnail in this size i generate it
def _get_thumb_url(self, folder, size):
if not self.photo:
return '#'
upload_to = path.dirname(self.photo.path)
tiny = path.join(upload_to, folder,
path.basename(self.photo.path))
tiny = path.normpath(tiny)
if not path.exists(tiny):
import Image
im = Image.open(self.photo.path)
im.thumbnail(size, Image.ANTIALIAS)
im.save(tiny, 'JPEG')
return path.join(path.dirname(self.photo.url), folder,
path.basename(self.photo.path)).replace('\\', '/')
def get_thumb_url(self):
return self._get_thumb_url('thumb_40_40', (40,40))
def thumb(self):
link = self.get_thumb_url()
if link is None:
return '<a href="#" target="_blank">NO IMAGE</a>'
else:
return '<a href="%s" target="_blank"><img src="%s"
alt="tiny thumbnail image"/></a>' % (self.photo.url, link)
thumb.allow_tags = True
So if i need thumbnail in my template i write this:
{{ my_model.thumb }}
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