From 680344c92b2adbce43fb12e9110e91ab398cfac7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?C=C3=A9dric=20Krier?= <ced@b2ck.com>
Date: Tue, 20 Jan 2026 09:19:12 +0100
Subject: [PATCH] Format float and computed Decimal using fixed-point notation

This avoid the usage of scientific notation.
For float we must convert them to Decimal to get a precision large enough to
show all coefficient digits.
For computed Decimal (which are thus not rounded) we must normalized them first
to avoid trailing 0.

Closes #14522
---
 modules/edocument_ubl/edocument.py                        | 5 ++++-
 modules/edocument_ubl/template/2/CreditNote.xml           | 8 ++++----
 modules/edocument_ubl/template/2/Invoice.xml              | 8 ++++----
 modules/edocument_uncefact/edocument.py                   | 5 ++++-
 .../template/16B-CII/CrossIndustryInvoice.xml             | 4 ++--
 5 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/modules/edocument_ubl/edocument.py b/modules/edocument_ubl/edocument.py
index a5c073b8d1..b39003c1a7 100644
--- a/modules/edocument_ubl/edocument.py
+++ b/modules/edocument_ubl/edocument.py
@@ -86,7 +86,10 @@ class Invoice(Model):
         tmpl = self._get_template(template)
         if not tmpl:
             raise NotImplementedError
-        return (tmpl.generate(this=self, specification=specification)
+        return (tmpl.generate(
+                this=self,
+                specification=specification,
+                Decimal=Decimal)
             .filter(remove_comment)
             .render()
             .encode('utf-8'))
diff --git a/modules/edocument_ubl/template/2/CreditNote.xml b/modules/edocument_ubl/template/2/CreditNote.xml
index 39aebfa02f..e26639b73a 100644
--- a/modules/edocument_ubl/template/2/CreditNote.xml
+++ b/modules/edocument_ubl/template/2/CreditNote.xml
@@ -70,10 +70,10 @@ this repository contains the full copyright notices and license terms. -->
     <cac:TaxSubtotal py:for="line in lines">
         <cbc:TaxableAmount py:attrs="{'currencyID': this.invoice.currency.code}">${-line.base}</cbc:TaxableAmount>
         <cbc:TaxAmount py:attrs="{'currencyID': this.invoice.currency.code}">${-line.amount}</cbc:TaxAmount>
-        <cbc:Percent py:if="line.tax.type == 'percentage' and not (specification or '').startswith('peppol')">${line.tax.rate * 100}</cbc:Percent>
+        <cbc:Percent py:if="line.tax.type == 'percentage' and not (specification or '').startswith('peppol')">${format((line.tax.rate * 100).normalize(), 'f')}</cbc:Percent>
         <cac:TaxCategory>
             <cbc:ID py:if="line.tax.unece_category_code">${line.tax.unece_category_code}</cbc:ID>
-            <cbc:Percent py:if="line.tax.type == 'percentage'">${line.tax.rate * 100}</cbc:Percent>
+            <cbc:Percent py:if="line.tax.type == 'percentage'">${format((line.tax.rate * 100).normalize(), 'f')}</cbc:Percent>
             <cac:TaxScheme py:if="line.tax.unece_code">
                 <cbc:ID>${line.tax.unece_code}</cbc:ID>
             </cac:TaxScheme>
@@ -91,7 +91,7 @@ this repository contains the full copyright notices and license terms. -->
 </cac:LegalMonetaryTotal>
 <cac:CreditNoteLine py:for="line_id, line in enumerate(this.lines, 1)">
     <cbc:ID>${line_id}</cbc:ID>
-    <cbc:CreditedQuantity py:attrs="{'unitCode': line.unit.unece_code if line.unit and line.unit.unece_code else 'ZZ'}">${-line.quantity}</cbc:CreditedQuantity>
+    <cbc:CreditedQuantity py:attrs="{'unitCode': line.unit.unece_code if line.unit and line.unit.unece_code else 'ZZ'}">${format(-Decimal(str(line.quantity)), 'f')}</cbc:CreditedQuantity>
     <cbc:LineExtensionAmount py:attrs="{'currencyID': this.invoice.currency.code}">${-line.amount}</cbc:LineExtensionAmount>
     <cac:Item>
         <cbc:Description py:if="line.description">${line.description}</cbc:Description>
@@ -111,7 +111,7 @@ this repository contains the full copyright notices and license terms. -->
         </py:if>
         <cac:ClassifiedTaxCategory py:for="tax in line.taxes">
             <cbc:ID py:if="tax.unece_category_code">${tax.unece_category_code}</cbc:ID>
-            <cbc:Percent py:if="tax.type == 'percentage'">${tax.rate * 100}</cbc:Percent>
+            <cbc:Percent py:if="tax.type == 'percentage'">${format((tax.rate * 100).normalize(), 'f')}</cbc:Percent>
             <cac:TaxScheme py:if="tax.unece_code">
                 <cbc:ID>${tax.unece_code}</cbc:ID>
             </cac:TaxScheme>
diff --git a/modules/edocument_ubl/template/2/Invoice.xml b/modules/edocument_ubl/template/2/Invoice.xml
index e3bd1834b9..260328241e 100644
--- a/modules/edocument_ubl/template/2/Invoice.xml
+++ b/modules/edocument_ubl/template/2/Invoice.xml
@@ -70,10 +70,10 @@ this repository contains the full copyright notices and license terms. -->
     <cac:TaxSubtotal py:for="line in lines">
         <cbc:TaxableAmount py:attrs="{'currencyID': this.invoice.currency.code}">${line.base}</cbc:TaxableAmount>
         <cbc:TaxAmount py:attrs="{'currencyID': this.invoice.currency.code}">${line.amount}</cbc:TaxAmount>
-        <cbc:Percent py:if="line.tax.type == 'percentage' and not (specification or '').startswith('peppol')">${line.tax.rate * 100}</cbc:Percent>
+        <cbc:Percent py:if="line.tax.type == 'percentage' and not (specification or '').startswith('peppol')">${format((line.tax.rate * 100).normalize(), 'f')}</cbc:Percent>
         <cac:TaxCategory>
             <cbc:ID py:if="line.tax.unece_category_code">${line.tax.unece_category_code}</cbc:ID>
-            <cbc:Percent py:if="line.tax.type == 'percentage'">${line.tax.rate * 100}</cbc:Percent>
+            <cbc:Percent py:if="line.tax.type == 'percentage'">${format((line.tax.rate * 100).normalize(), 'f')}</cbc:Percent>
             <cac:TaxScheme py:if="line.tax.unece_code">
                 <cbc:ID>${line.tax.unece_code}</cbc:ID>
             </cac:TaxScheme>
@@ -91,7 +91,7 @@ this repository contains the full copyright notices and license terms. -->
 </cac:LegalMonetaryTotal>
 <cac:InvoiceLine py:for="line_id, line in enumerate(this.lines, 1)">
     <cbc:ID>${line_id}</cbc:ID>
-    <cbc:InvoicedQuantity py:attrs="{'unitCode': line.unit.unece_code if line.unit and line.unit.unece_code else 'ZZ'}">${line.quantity}</cbc:InvoicedQuantity>
+    <cbc:InvoicedQuantity py:attrs="{'unitCode': line.unit.unece_code if line.unit and line.unit.unece_code else 'ZZ'}">${format(Decimal(str(line.quantity)), 'f')}</cbc:InvoicedQuantity>
     <cbc:LineExtensionAmount py:attrs="{'currencyID': this.invoice.currency.code}">${line.amount}</cbc:LineExtensionAmount>
     <cac:Item>
         <cbc:Description py:if="line.description">${line.description}</cbc:Description>
@@ -111,7 +111,7 @@ this repository contains the full copyright notices and license terms. -->
         </py:if>
         <cac:ClassifiedTaxCategory py:for="tax in line.taxes">
             <cbc:ID py:if="tax.unece_category_code">${tax.unece_category_code}</cbc:ID>
-            <cbc:Percent py:if="tax.type == 'percentage'">${tax.rate * 100}</cbc:Percent>
+            <cbc:Percent py:if="tax.type == 'percentage'">${format((tax.rate * 100).normalize(), 'f')}</cbc:Percent>
             <cac:TaxScheme py:if="tax.unece_code">
                 <cbc:ID>${tax.unece_code}</cbc:ID>
             </cac:TaxScheme>
diff --git a/modules/edocument_uncefact/edocument.py b/modules/edocument_uncefact/edocument.py
index c756071a76..6bd27bf427 100644
--- a/modules/edocument_uncefact/edocument.py
+++ b/modules/edocument_uncefact/edocument.py
@@ -2,6 +2,7 @@
 # this repository contains the full copyright notices and license terms.
 import functools
 import os
+from decimal import Decimal
 
 import genshi
 import genshi.template
@@ -78,7 +79,9 @@ class Invoice(Model):
         tmpl = self._get_template(template)
         if not tmpl:
             raise NotImplementedError
-        return (tmpl.generate(this=self)
+        return (tmpl.generate(
+                this=self,
+                Decimal=Decimal)
             .filter(remove_comment)
             .render()
             .encode('utf-8'))
diff --git a/modules/edocument_uncefact/template/16B-CII/CrossIndustryInvoice.xml b/modules/edocument_uncefact/template/16B-CII/CrossIndustryInvoice.xml
index 5ca38b5433..ead5453aa4 100644
--- a/modules/edocument_uncefact/template/16B-CII/CrossIndustryInvoice.xml
+++ b/modules/edocument_uncefact/template/16B-CII/CrossIndustryInvoice.xml
@@ -48,7 +48,7 @@ this repository contains the full copyright notices and license terms. -->
             <ram:ExemptionReason py:if="tax.legal_notice">${tax.legal_notice}</ram:ExemptionReason>
             <ram:BasisAmount py:if="base">${base * this.type_sign}</ram:BasisAmount>
             <ram:CategoryCode py:if="tax.unece_category_code">${tax.unece_category_code}</ram:CategoryCode>
-            <ram:RateApplicablePercent py:if="tax.type == 'percentage'">${tax.rate * 100}</ram:RateApplicablePercent>
+            <ram:RateApplicablePercent py:if="tax.type == 'percentage'">${format((tax.rate * 100).normalize(), 'f')}</ram:RateApplicablePercent>
         </ram:ApplicableTradeTax>
     </py:def>
     <rsm:ExchangedDocumentContext>
@@ -76,7 +76,7 @@ this repository contains the full copyright notices and license terms. -->
                 </ram:NetPriceProductTradePrice>
             </ram:SpecifiedLineTradeAgreement>
             <ram:SpecifiedLineTradeDelivery>
-                <ram:BilledQuantity py:attrs="{'unitCode': line.unit.unece_code} if line.unit and line.unit.unece_code else {}">${line.quantity * this.type_sign}</ram:BilledQuantity>
+                <ram:BilledQuantity py:attrs="{'unitCode': line.unit.unece_code} if line.unit and line.unit.unece_code else {}">${format(Decimal(str(line.quantity * this.type_sign)), 'f')}</ram:BilledQuantity>
             </ram:SpecifiedLineTradeDelivery>
             <ram:SpecifiedLineTradeSettlement>
                 <py:for each="tax in line.invoice_taxes">