thanks, i made it that, it is working fine now :)
def screenshot_path(instance = None, filename = None):
filepath = join("products", "images", instance.product.type,
instance.product.slug, "screenshot_" + str(instance.order) + ".gif")
if exists(join(MEDIA_ROOT,filepath)):
remove(join(MEDIA_ROOT, filepath))
return filepath
class ScreenShot(models.Model):
product = models.ForeignKey(Product)
image = models.ImageField(upload_to = screenshot_path)
order = models.PositiveSmallIntegerField(choices = ((1, 1),(2, 2),
(3, 3), (4, 4)))
def __unicode__(self):
return "%s" % (self.image.path
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