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one2manyondelete
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Odoo learner

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 relation fields ('point_id' and 'product_id') as shown. How can I delete its child record completely when the parent record is removed?



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Odoo learner
作者 最佳答案

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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