account_payment_sale: payment_mode_id in sale.report

account_payment_sale/models/__init__.py

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

account_payment_sale/models/sale_report.py

@@ -0,0 +1,20 @@
+# Copyright 2021-2022 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 fields, models
+
+
+class SaleReport(models.Model):
+    _inherit = "sale.report"
+
+    payment_mode_id = fields.Many2one(
+        "account.payment.mode",
+        string="Payment Mode",
+        readonly=True,
+    )
+
+    def _select_additional_fields(self):
+        res = super()._select_additional_fields()
+        res["payment_mode_id"] = "s.payment_mode_id"
+        return res