How to use ensure_one method in Odoo | Odoo ORM Methods

Описание: How to use ensure_one() orm method in Odoo, its allow only single recordset to execute further line of code. In case found blank or multiple recordset than it will raise below exception.

Odoo tutorial source code:
https://github.com/er-harsh-dhaduk/od...

Raise exception as "ValueError: Expected Singleton"

How to prevent further process if found multiple records
How to raise error while blank recordset in odoo.

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