Hello,
I have a model that includes a FileField. When the user uploads a file
via the admin interface, I want the file to be saved as 'upload_to/
primary_key/original_filename'. Since the object will not be saved in
the database when the user uploads the file, it will not have a
primary key at that point. This is my workaround:
class Decision(m.Model):
...
decision = m.FileField(upload_to='base_dir/')
...
def save(self, *args, **kwargs):
""" custom save to use pk on filename """
#save once to get a pk
super(Decision, self).save(*args, **kwargs)
#get info about the file
uploaded = self.decision
old_path = self.decision.name
basedir, filename = os.path.split(old_path)
new_path = os.path.join(basedir, str(self.pk), filename)
#create the new file, delete the one django created
uploaded.storage.save(new_path, uploaded)
uploaded.storage.delete(old_path)
#assign new path and save again
self.decision = new_path
super(Decision, self).save(*args, **kwargs)
This works, but seems to be a bit on the hacky side. Basically, I'm
letting FileField upload the file to the 'upload_to' path and then
move it to its correct path when the object has a primary key.
I was wondering if there is a better way to do this. Are there any
cases where my code wouldn't work?
Thanks.
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