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It includes hundreds of business apps:
category_ids = fields.Many2many(related='employee_id.category_ids', string='Tags')
In XML tree view:
I have tried the above. it's working fine. I can filter the data using category_ids.
But I can't group by using category_ids! I have tried using store=True. but it gives me below error:
psycopg2.errors.UndefinedTable: relation "none" does not exist
Hi,
You cannot group by many2many fields in Odoo. When you provide a group by filter using a many2many field, You will get an error message like Assertion error.To provide a group by filter using many2many fields
Try refer the blog:
https://www.cybrosys.com/blog/how-to-use-group-by-for-many2many-fields-in-odoo-16
Hope it helps.
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