Make multiple fields invisible with many2many field odoo

Question

I have a 3 char fields and 1 many2many field.  Below is code
brand = fields.char ('Brand')
lang = fields.char ('Language')
ref = fields.char ('Reference')
product_ids = fields.Many2many ('product.product', Products')
How can i hide fields based on many2many multiple selection?  Example if product A selected selected then BRAND should be visible and when product B selected LANG should be visible, when Product C selected then REF should be visible vice versa.
There can be multiple selection like

Sudhir Arya (ERP Harbor Consulting Services) · Accepted Answer

Better you do it with a *compute boolean* field. In the compute method, you can set True / False value to the boolean field depending on your condition (True or Product A-B and False for Product C-D).
Now, use this boolean field in *attrs* to hide your fields.

Shashank Verma · Answer

Solution found.
See below url-
https://stackoverflow.com/questions/56985481/make-multiple-fields-invisible-with-many2many-field-odoo?noredirect=1#comment100509645_56985481

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