from odoo import api, models, fields


class PurchaseOrderLines(models.Model):
    _inherit = "purchase.order.line"

    barcode_scan = fields.Char(string='Product Barcode', help="Here you can provide the barcode for the product")

    @api.onchange('barcode_scan')
    def _onchange_barcode_scan(self):
        print('purchase')
        product_rec = self.env['product.product']
        if self.barcode_scan:
            product = product_rec.search([('barcode', '=', self.barcode_scan)])
            self.product_id = product.id

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