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- from django.utils.deconstruct import deconstructible
- from django.utils import timezone
- from django.conf import settings
- import os
- @deconstructible
- class PathAndRename(object):
- def __init__(self, sub_path):
- self.path = sub_path
- full_path = "%s/%s" % (settings.MEDIA_ROOT, sub_path)
- if not os.path.exists(full_path):
- os.makedirs(full_path)
- def __call__(self, instance, filename):
- # set filename as random string
- ext = filename.split('.')[-1]
- t = timezone.now().strftime('%Y%m%d%H%M%S%f')
- # get filename
- if instance.pk:
- filename = '{}-{}.{}'.format(instance.pk, t, ext)
- else:
- # set filename as random string
- filename = '{}.{}'.format(t, ext)
- # return the whole path to the file
- return os.path.join(self.path , filename)
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