Untitled

@api.model_create_multi
    def create(self, vals_list):
        new_lines = []
        for values in vals_list:
            # Use .get() method to avoid KeyError
            display_type = values.get('display_type', self.default_get(['display_type']).get('display_type'))
            
            if display_type:
                values.update({
                    'product_id': False, 
                    'price_unit': 0, 
                    'product_uom_qty': 0, 
                    'product_uom': False, 
                    'date_planned': False
                })
            else:
                values.update(self._prepare_add_missing_fields(values))
            
            # Create a new purchase order for each line to avoid grouping
            order_vals = {
                'partner_id': values.get('partner_id'),
                'date_order': values.get('date_order'),
                'company_id': values.get('company_id'),
                # Add any other necessary fields here if needed
            }
            new_order = self.env['purchase.order'].create(order_vals)
            values['order_id'] = new_order.id

            new_line = super(PurchaseOrderLine, self).create([values])
            new_lines.extend(new_line)
            
            for line in new_line:
                if line.product_id and line.order_id.state == 'purchase':
                    msg = _("Extra line with %s ") % (line.product_id.display_name,)
                    line.order_id.message_post(body=msg)
                    
        return new_lines