The document discusses how to use the @api.onchange decorator in Odoo to trigger a method when a field value changes. It explains that the decorator supports single field names and will call the decorated function if the specified field changes. An example is given of changing a name field which then updates an address field accordingly using this decorator. More details and resources are provided on the company website.

1. www.cybrosys.com
How to Update Client
Interface ‘on change’
@api.onchange Odoo 15

2. INTRODUCTION
● Odoo api.onchange decorator is used to invoke a method when a
field's value changed.
● It can be used to validate the data or to trigger an action. A detailed
explanation of the technical and functional aspects of the Onchange
mechanical of Odoo.
● Furthermore, an insight into the Odoo api.onchange decorator
operations which are used to invoke a method when a field's value
changes in the platform

3. api.onchange
● The function of this decorator will be called when the field value changes.
● Moreover, it supports only single field names; on the contrary, dotted names will not be
considered.
● Furthermore, onchange methods are invoked on pseudo-records that contain values of
the form

5. ● @api.onchange “decorator will trigger the call to the decorated function if
any of the fields specified in the decorator is changed in the form”.
● In previous sample self corresponds to the record currently edited on the
form. When in onchange context all work is done in the cache.

7. ● Changing the name field the address field will change accordingly

8. For More
Details
Check our company website for related blogs and Odoo
book.
Odoo Book V15
Check our YouTube channel for functional and technical
videos in Odoo.
How to Update Client Interface 'on change'
@api.onchange Odoo 15

10. Thank You