Hi,
I'm trying to use the File Storage API to create a custom handler for
files. Here are my goals:
Stored files are represented both in the database and on disk with the
following model:
class StoredFile(models.Model):
name = models.CharField(max_length=255)
path = models.CharField(max_length=255, unique=True)
The "name" attribute represents the filename presented to the user:
"My document.txt". The path attribute represents the basename as the
file exists on the disk in MEDIA_ROOT, usually created with mktemp:
"tmpAsdf123" in "/path/to/media". The goal of this configuration:
1. Files are stored on disk
2. There are no filename collisions (duplicate names can exist but the
paths will be unique)
3. Uploaded files preserve the name exactly, may be downloaded later,
are never mangled
4. All files are stored in an identical manner
You can think of "name" as an abstract user-oriented name, and path as
the actual on disk representation.
What I want, saving a file should save the file to path and record an
entry for the StoredFile model. Ideally FileFields would be a FK to
this model--currently it is a string.
I'm having a little trouble getting started. Some issues:
1. FileFields store strings, would like it to be a one-to-one FK (or
an intereger id)
2. Most of the storage API takes a single argument "name" Should this
be the name as stored on disk? The name as presented to the user? The
PK from the StoredFile model?
Is what I'm trying to do achievable? Am I approaching the problem correctly?
This design was taken from an existing application, so
interoperability is also a goal.
Cheers,
Jon
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