How to Add Inverse Methods in Odoo

Hello odooers  & developers, 

Its odoo tips and tricks article, where I would like to share more knowledge about the Inverse Methods in Odoo 

as an odoo developer, knowing the fundamentals of Inverse Methods in Odoo 17 behaviour, its Syntax, and how we can use the  Inverse Methods in Odoo in Odoo is essential.   

Explore Inverse Methods in Odoo :-

Odoo's inverse methods provide a way to establish a two-way relationship between fields. When you modify the dependent_field, the inverse method is triggered, and it updates the source_field accordingly. This ensures both fields stay in sync, regardless of which one is modified first.

Use of Inverse Methods in Odoo :-

With inverse methods handling the synchronization, you avoid writing repetitive code or relying on manual triggers to keep fields aligned. This simplifies your code and makes it easier to understand and maintain.

Use the @api.depends decorator to specify the fields that trigger the recomputation of the compute and inverse methods. In the example, @api.depends('field_a') ensures _compute_field_b is recalculated only when field_a changes, and @api.depends('field_b') ensures _inverse_field_b is recalculated only when field_b changes.

Inverse Methods in Odoo usage and Syntax :-

from odoo import models, fields, api

class MyModel(models.Model):

    _name = 'my.model'

    field_a = fields.Char()

    field_b = fields.Char(compute='_compute_field_b', inverse='_inverse_field_b')

    @api.depends('field_a')

    def _compute_field_b(self):

        for record in self:

            record.field_b = record.field_a.upper()  # Example transformation

    @api.depends('field_b')

    def _inverse_field_b(self):

        for record in self:

            record.field_a = record.field_b.lower()  # Example inverse transformation

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