Created
July 2, 2013 08:13
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Get an uploaded image and rename it to model PK
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| """ | |
| USE: | |
| photo = models.ImageField( | |
| _(u'Rating photo'), upload_to=path_and_rename('ratings/pictures'), | |
| blank=True) | |
| """ | |
| import os | |
| from uuid import uuid4 | |
| def path_and_rename(path): | |
| """ | |
| get the filename of a uploaded image and change it to models PK or a random if model is not saved | |
| """ | |
| def wrapper(instance, filename): | |
| ext = filename.split('.')[-1] | |
| # get filename | |
| if instance.pk: | |
| filename = '{}.{}'.format(instance.pk, ext) | |
| else: | |
| # set filename as random string | |
| filename = '{}.{}'.format(uuid4().hex, ext) | |
| # return the whole path to the file | |
| return os.path.join(path, filename) | |
| return wrapper |
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