Modify the cost of a product with its last invoice

Question

Hello,
I am working on Odoo 11 and I am trying to update the cost of items in the inventory module when I click on the validate button of a supplier invoice (Purchase module). The cost of the items shall take the cost indicated in the invoice.

I created the following method:

from odoo import fields, models, api
class ProductCost(models.Model):
_inherit = 'account.invoice'
@api.multi()
def _get_last_price(self):
for record in self.product_id:
record.write({'standard_price': self.price_unit})
re

Waleed Mohsen (CorTex IT Solutions) · Accepted Answer

Use the below code:
class AccountInvoice(models.Model):
_inherit = 'account.invoice'
@api.multi()
def action_invoice_open(self):
res = super(AccountInvoice, self).action_invoice_open()
for inv in self:
for inv_line in inv.invoice_line_ids:
product = inv_line.product_id
if product:
product.write({'standard_price': inv_line.price_unit})
return res

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