Why compute method is throwing error only in tree view?

Question

I'm using compute method to add records to the one2many field and it's working fine in form view but not in tree view. Can anyone help?

@api.depends("odoo_product_id")
def _compute_offers(self):
    for rec in self:
        if rec.odoo_product_id:
            offers = self.env['demo.offers'].search
                ([('product_id','=',rec.odoo_product_id.id)])
            for offer in offers:
                rec.shop_offer_ids = rec.shop_offer_ids + offer

It's throwing Compute method failed to assign Error in tree view only

Also maybe not your error, but interesting: https://stackoverflow.com/questions/61096793/odoo-13-how-to-solve-cachemiss-exception/61097419#61097419 — CZoellner, Nov 02 '22 at 14:35

score 1 · Accepted Answer · answered Nov 02 '22 at 08:39

The compute method will fail to assign the field value for records where the odoo_product_id field is not set.

To fix that error use else to provide a default value for shop_offer_ids field.

Example:

@api.depends("odoo_product_id")
def _compute_offers(self):
    for rec in self:
        if rec.odoo_product_id:
            offers = self.env['demo.offers'].search
                ([('product_id','=',rec.odoo_product_id.id)])
            rec.shop_offer_ids = offers.ids
        else:
            rec.shop_offer_ids = []

You can find an example in website_event_questions module

Why compute method is throwing error only in tree view?

1 Answers1