How to fully delete the child's record after deleting the parent record with one2many field

Question

Hi,
In parent model:
product_id = fields.Many2one('product.product', compute='_compute_product_id_for_measure')
measure_data_ids = fields.One2many('measure.spec', 'point_id') In child model:
point_id = fields.Many2one('elw.point', 'Control Point', ondelete='cascade')
product_id = fields.Many2one('product.product', string="Product", domain="[('type','in',('product','consu'))]",store=True, related="point_id.product_id") When I deleted a record from parent model, its child record removed only two r

Odoo learner · Accepted Answer

Hi all,
I have solved this issue by overwriting the unlink method as follows
def unlink(self):
for rec in self:
if rec.state != 'none' or rec.picking_id:
raise ValidationError(
_("Can not delete the record that is not in 'To Do' or has Deliveries/Receipts order"))
elif len(rec.measure_data_ids) > 0:
# unlink child's records
rec.measure_data_ids.unlink()
return super(ElwCheck, self).unlink()

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