I've got a model that looks something like this:
class Image(Model):
name = CharField(max_length=40)
class ImageVersion(Model):
image = ForeignKey(Image)
upload_date = DateTimeField(auto_now_add=True)
data = ImageField(upload_to="images/learncms")
I want all the data in an ImageVersion to be read-only once it is created.
The idea is that the active version of an image is always the latest one,
and the only way to change an image is to upload a new version. Existing
versions can never be changed. How can I implement this in the admin?
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