Am Freitag, 25. Mai 2007 10:51 schrieb Thomas Güttler:
> Hi,
>
> the upload_to argument to FileField evals strftime formatting.
>
> I would like to have the ID of the belonging row.
>
> Example: One MyObject has N attachments.
>
> class Attachment(models.Model):
> file=models.FileField(upload_to="%(myobject_id)s")
> myobject=models.ForeignKey(MyObject)
>
>
> This way all attachments of one MyObjects are in the same directory.
Here is how I solved this:
MyObject instances have N attachments:
The files should be in myobjects/MYOBJECTID/...
class MyAttachmentField(models.FileField):
def get_directory_name(self):
return os.path.normpath(os.path.join(self.upload_to,
str(self.myobject_id)))
def save_file(self, *args, **kwargs):
new_data=args[0]
self.myobject_id=new_data["myobject_id"]
return models.FileField.save_file(self, *args, **kwargs)
class MyAttachment(models.Model):
def __str__(self):
return '<%s %s %s>' % (
self.__class__.__name__, self.myobject.id, self.file)
file=MyAttachmentFileField(upload_to="myobjects")
myobject=models.ForeignKey(MyObject, edit_inline=models.STACKED)
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