sale_stock_usability: add method to display delivery order on out invoice report

sale_stock_usability/models/__init__.py

@@ -1 +1,2 @@
 from . import sale_order
+from . import account_move

sale_stock_usability/models/account_move.py

@@ -0,0 +1,33 @@
+# Copyright 2024 Akretion France (http://www.akretion.com)
+# @author Alexis de Lattre <alexis.delattre@akretion.com>
+# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
+
+from odoo import models
+
+
+class AccountMove(models.Model):
+    _inherit = 'account.move'
+
+    def _report_get_sale_pickings(self, sale_order=None):
+        self.ensure_one()
+        # the sale_order arg is usefull when using
+        # py3o_lines_layout_groupby_order() to display the delivery orders
+        # linked to a specific sale_order
+        assert self.move_type in ('out_invoice', 'out_refund')
+        sale_orders = sale_order or self.sale_ids
+        picking_domain = [
+            ('id', 'in', sale_orders.picking_ids.ids),
+            ('state', '=', 'done'),
+            ('date_done', '<', self.create_date),
+            ('company_id', '=', self.company_id.id),
+            ]
+        previous_inv = self.env['account.move'].search([
+            ('move_type', 'in', ('out_invoice', 'out_refund')),
+            ('create_date', '<', self.create_date),
+            ('id', 'in', sale_orders.invoice_ids.ids),
+            ('company_id', '=', self.company_id.id),
+            ], limit=1, order='id desc')
+        if previous_inv:
+            picking_domain.append(('date_done', '>', previous_inv.create_date))
+        pickings = self.env['stock.picking'].search(picking_domain)
+        return pickings