old_contents: from django.conf import settings
  from django.core.files.storage import FileSystemStorage
  from django.db import models
  
  
  # We want attachments to be stored in a private location and NOT available to
  # the world at a public URL.  The idea for this came from:
  # http://nemesisdesign.net/blog/coding/django-private-file-upload-and-serving/
  # and
  # https://github.com/johnsensible/django-sendfile
  private_file_store = FileSystemStorage(location=settings.SENDFILE_ROOT)
  
  
  ftp_file_store = FileSystemStorage(location=settings.FTP_STATIC_DIR)
  
  
  class TimeStampedModel(models.Model):
      """
      An abstract base class model that provides self-updating
      ``created`` and ``modified`` fields
      """
      created = models.DateTimeField(auto_now_add=True)
      modified = models.DateTimeField(auto_now=True)
  
      class Meta:
          abstract = True
  
new_contents: from django.conf import settings
  from django.core.files.storage import FileSystemStorage
  from django.db import models
  
  
  # We want attachments to be stored in a private location and NOT available to
  # the world at a public URL.  The idea for this came from:
  # http://nemesisdesign.net/blog/coding/django-private-file-upload-and-serving/
  # and
  # https://github.com/johnsensible/django-sendfile
  private_file_store = FileSystemStorage(
      location=settings.SENDFILE_ROOT
  )
  
  
  ftp_file_store = FileSystemStorage(
      location=settings.FTP_STATIC_DIR,
      base_url=settings.FTP_STATIC_URL,
  )
  
  
  class TimeStampedModel(models.Model):
      """
      An abstract base class model that provides self-updating
      ``created`` and ``modified`` fields
      """
      created = models.DateTimeField(auto_now_add=True)
      modified = models.DateTimeField(auto_now=True)
  
      class Meta:
          abstract = True
  
subject: set the url for ftp uploads