Question

If I have a Django model with a FileField e.g.,

class Probe(models.Model):
    name =  models.CharField(max_length=200, unique=True)
    nanoz_file = models.FileField(upload_to='nanoz_file', blank=True)

is there a way to prevent an uploaded file from being overwritten if a user uploads a new file in the Admin interface?

Also if I do keep the old files around is there a way I can relate the previous files back to the model instance?

I.e., I’d like to be able to list all files uploaded to the nanoz_file field for a given model instance.

Answer 1

Django never overwrites an uploaded file. If you upload ‘foo.png’ twice, the second will be ‘foo_1.png’ – I just tested this but don’t take my word for it: try it too !

All you have to do (or let django-reversion do) is keep track of the previous file names.