Greetings!

In odoo 13 the model sale.order has this definition for this field

But if I want to make this field readonly I have several ways:

1. Add attrs readonly in view

2. Overwrite the definition by rewriting it again (payment_term_id = fields.Many2o....
   I can use states={'draft': [('readonly', False)]} or I can use required=True directly
   

I wonder if there is another way to resolve this, for example rewrite some method that tries to get the field attributes for the view. Or something like that.

Kind regards.