Enforce unique upload file names using django?

Question

What's the best way to rename photos with a unique filename on the server as they are uploaded, using django? I want to make sure each name is used only once. Are there any pinax apps that can do this, perhaps with GUID?

Answer 1

Use uuid. To tie that into your model see Django documentation for FileField upload_to.

For example in your models.py define the following function:

import uuid import os  def get_file_path(instance, filename):     ext = filename.split('.')[-1]     filename = "%s.%s" % (uuid.uuid4(), ext)     return os.path.join('uploads/logos', filename) 

Then, when defining your FileField/ImageField, specify get_file_path as the upload_to value.

file = models.FileField(upload_to=get_file_path,                         null=True,                         blank=True,                         verbose_name=_(u'Contact list'))