[ADD] create sale_order_invoice_untaxed_amount add-on

sale_order_invoice_untaxed_amount/models/__init__.py

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+from . import sale_order

sale_order_invoice_untaxed_amount/models/sale_order.py

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+# Copyright (C) 2021 ForgeFlow S.L.
+# License LGPL-3.0 or later (https://www.gnu.org/licenses/lgpl.html)
+
+from odoo import api, fields, models
+
+
+class SaleOrder(models.Model):
+
+    _inherit = "sale.order"
+
+    invoiced_untaxed_amount = fields.Monetary(
+        string="Invoiced  Untaxed Amount",
+        compute="_compute_invoice_untaxed_amount",
+        store=True,
+    )
+
+    uninvoiced_untaxed_amount = fields.Monetary(
+        string="Uninvoiced Untaxed Amount",
+        compute="_compute_invoice_untaxed_amount",
+        store=True,
+    )
+
+    @api.depends(
+        "state",
+        "invoice_ids",
+        "invoice_ids.amount_untaxed_signed",
+        "amount_total",
+        "invoice_ids.state",
+    )
+    def _compute_invoice_untaxed_amount(self):
+        for rec in self:
+            if rec.state != "cancel" and rec.invoice_ids:
+                rec.invoiced_untaxed_amount = 0.0
+                for invoice in rec.invoice_ids:
+                    if invoice.state != "cancel":
+                        rec.invoiced_untaxed_amount += invoice.amount_untaxed_signed
+                rec.uninvoiced_untaxed_amount = max(0, rec.amount_untaxed - rec.invoiced_untaxed_amount)
+            else:
+                rec.invoiced_untaxed_amount = 0.0
+                if rec.state in ["draft", "sent", "cancel"]:
+                    rec.uninvoiced_untaxed_amount = 0.0
+                else:
+                    rec.uninvoiced_untaxed_amount = rec.amount_untaxed