#31701: Extend DeferredAttribute & Remove unnecessary overriding of
contrib_to_class () in FileField
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Reporter: Sultan | Owner: nobody
Type: | Status: new
Cleanup/optimization |
Component: Database | Version: 3.1
layer (models, ORM) |
Severity: Normal | Keywords:
Triage Stage: | Has patch: 1
Unreviewed |
Needs documentation: 0 | Needs tests: 0
Patch needs improvement: 0 | Easy pickings: 1
UI/UX: 0 |
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The model fields use, by default, the descriptor **DeferredAttribute** to
access and process (if necessary) the data associated with them. This type
of data represents the actual data in db column. I prefer to call it a
“field data”.
To access the field data in instance dict, **Field.attname** is used as a
key.
In addition to the field data, some other model fields (for example, FK)
also use a "client data" of the attribute, the processing of which is
performed by a particular descriptor. Such a descriptor is usually
assigned to a model using **Field.name**.
This enables us to process and present data in different ways:
article.author returns a User object, and article.auther_id returns a User
object pk.
This feature is not used in model.FileField. Then why use FileField.name
instead of FileField.attname for FileDescriptor?
I think it would be better if FileDescriptor uses field.attname and
continue working with the DeferredAttribute class.
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Ticket URL: <https://code.djangoproject.com/ticket/31701>
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