This is a prototype for #854

[skinkie]

📒 Description

When a restriction is set, the ideal situation for the datamodel would be that only the properties that fall under the restriction are available. In the current situation, due to inheritance all attributes are available, while only some are valid.

Prototype for #854

🔗 What I've Done

I have added some code that creates 'null' fields when the inherited attributes are restricted. They are at rendering replaced with None.

💬 Comments

From https://www.reddit.com/r/learnpython/comments/12qhzi6/dataclasses_with_inheritance/ I found that kw_only was used to resolve the issue with non-default argument 'class name' follows default argument.

What seems to fail in this approach is that some inherited attributes somewhere get _attribute suffixed to the name. I am yet to find out why this happens.

🛫 Checklist

• Updated docs
• Added unit-tests
• Sample tests pass
• W3C tests pass

[tefra]

This approach I am afraid will work when we reach the EOL for python 3.9 and we can make the kw_only directive mandatory, until then we need to maintain compatibility.

In order to resolve some of these cases, we either remove the extension completely or mark the fields as prohibited.

Let' me take a look

[skinkie]

This approach I am afraid will work when we reach the EOL for python 3.9 and we can make the kw_only directive mandatory, until then we need to maintain compatibility.

In order to resolve some of these cases, we either remove the extension completely or mark the fields as prohibited.

I can absolutely live with this functionality only to be applied when kwonly is used as argument.

Are you saying that prohibited would already give a better way? Hence my issue with suffixes "_attribute" vs "" would already been covered?

[skinkie]

It seems that my interpretation which inhertitance to select is invalid. Hence... I have to do some more work.

[skinkie]

@tefra I need a hint where to add RestrictedVar as module import so it is added only to the classes which actually use is.

[sonarqubecloud]

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0.0% Duplication

[tefra]

@tefra I need a hint where to add RestrictedVar as module import so it is added only to the classes which actually use is.

See the filters here, the alias might be tricky
https://github.com/tefra/xsdata/blob/main/xsdata/formats/dataclass/filters.py#L796

[skinkie]

@tefra is this one something you also want to do 'correct' in "Tefra" style?

[tefra]

@tefra is this one something you also want to do 'correct' in "Tefra" style?

It has to pass mypy :)

[tefra]

Closing in favor of #908