sim3x

comments_article
article_title

import os
import datetime


def user_directory_path(instance, filename):
    # file will be uploaded to MEDIA_ROOT/user_<id>/<filename>
    return os.path.join(
               instance.user.name, 
               datetime.datetime.now().strftime('%Y_%m_%d__%H_%M'), 
               filename)


class MyModel(models.Model):
    upload = models.FileField(upload_to=user_directory_path)