Defining onchange with the compute method

In the last two recipes, we have seen how to define and call the onchange method. We have also seen its limitation, which is that it can be invoked automatically only from the user interface. As a solution to this problem, Odoo v13 introduced a new way to define onchange behavior. In this recipe, we will see how you can use the compute method to produce behavior like the onchange method's.

Getting ready

For this recipe, we will use the my_library module from the previous recipe. We will replace the onchange method of library.return.wizard with the compute method.

How to do it...

Follow these steps to modify the onchange method with the compute method:

1. Replace api.onchange in the onchange_member() method with compute like this:

       @api.depends('borrower_id')
       def onchange_member(self):
           ... 

2. Add the compute parameter...