sale_procurement_group_by_line: No "Purchases" button in SO from sale_purchase_stock module

[TelmoSuarezConinpe]

module: sale_procurement_group_by_line
version: 15.0

Steps to reproduce

• Install sale_procurement_group_by_line and sale_purchase_stock
• Unarchive "Replenish on Order (MTO)" route
  
• Configure product with MTO and Buy.
  
• Confirm SO with MTO product
• Check if there is a new PO

Current behavior
In the SO there is no smart button with the related PO

Expected behavior
Additional smart button on the SO with the related PO

[support-skillreso]

Hello TelmoSuarezConinpe,

Did you find a workaround for this problem ? I have encountered it too and I can't find how to make this work.

Thanks.

[support-skillreso]

I finally found a correction for this problem. For V14, you need to update the file sale_procurement_group_by_line/model/sale.py

First, you need to import odoo.api :
from odoo import fields, models, **api**

Then you need to override SaleOrder class by adding this code before the SaleOrderLine class definition :

class SaleOrder(models.Model):
    _inherit = 'sale.order'

    @api.depends('order_line.procurement_group_id.stock_move_ids.created_purchase_line_id.order_id', 'order_line.procurement_group_id.stock_move_ids.move_orig_ids.purchase_line_id.order_id')
    def _compute_purchase_order_count(self):
        super(SaleOrder, self)._compute_purchase_order_count()

    def _get_purchase_orders(self):
        return super(SaleOrder, self)._get_purchase_orders() | self.order_line.procurement_group_id.stock_move_ids.created_purchase_line_id.order_id | self.order_line.procurement_group_id.stock_move_ids.move_orig_ids.purchase_line_id.order_id

Explanation :
In module sale_purchase_stock, the method _get_purchase_orders uses the property procurement_group_id of the SaleOrder class to retrieve purchase orders. But when module sale_delivery_split_by_date is installed, procurement_group_id is not used anymore on the SaleOrder. Instead, procurement groups are linked to purchase order lines. So without the fix, _get_purchase_orders returns an empty list of PO.

The fix adds the PO from self.order_line.procurement_group_id the same way that module sale_purchase_stock adds it from self.procurement_group_id. With it, when you confirm a SO the corresponding PO is properly linked and the smart button appears correctly.

I will try to propose a pull request so that this fix is integrated into the module.

[SilvioC2C]

@TelmoSuarezConinpe would you mind reviewing/testing this PR? #2613

It should solve this issue.