How can I make the attribute populated but optional?

Question

Yii

I'm trying to edit a model from a form.
There is an id field. If I specify it in the rules, then editing is fine, the model is filled from the post.
But at the same time, an error occurs during creation - it tries to write null in the id field, and it should be automatically filled in the database.
If I remove the id from the rules, it is created normally, but when editing it is not filled from the array.

Answer 1

In situations where it is worth filling in attributes in one case and not in the other, it is worth using scripts and safe attributes