Add voucher codes display in POS receipt

- Create ows_order_patch.js to collect voucher codes from orderlines
- Add voucher codes section at end of receipt with large readable format
- Include voucher code, product name, and value for each voucher
- Move partner name logic from receipt_header_patch to order_patch
- Add German labels (GUTSCHEIN-CODES, Wert:)

open_workshop_pos/__manifest__.py

@@ -39,6 +39,7 @@ Autor: HobbyHimmel
             'open_workshop_pos/static/src/js/ows_machine_access_list.js',
             'open_workshop_pos/static/src/js/ows_product_screen_template_patch.js',
             'open_workshop_pos/static/src/js/ows_product_screen_default_category.js',
+            'open_workshop_pos/static/src/js/ows_order_patch.js',
             'open_workshop_pos/static/src/js/ows_receipt_header_patch.js',
             
             # XML Templates
@@ -48,6 +49,7 @@ Autor: HobbyHimmel
             'open_workshop_pos/static/src/xml/ows_product_screen_template_patch.xml',
             'open_workshop_pos/static/src/xml/ows_product_card_patch.xml',
             'open_workshop_pos/static/src/xml/ows_receipt_header_patch.xml',
+            'open_workshop_pos/static/src/xml/ows_voucher_codes_patch.xml',
             
             # CSS
             'open_workshop_pos/static/src/css/pos.css',

open_workshop_pos/static/src/js/ows_order_patch.js

@@ -0,0 +1,36 @@
+/** @odoo-module **/
+
+import { PosOrder } from "@point_of_sale/app/models/pos_order";
+import { patch } from "@web/core/utils/patch";
+
+// Patch the PosOrder to collect voucher codes from orderlines
+patch(PosOrder.prototype, {
+    export_for_printing(baseUrl, headerData) {
+        const result = super.export_for_printing(baseUrl, headerData);
+        
+        // Add partner name to headerData if partner exists
+        const partner = this.get_partner();
+        if (partner && result.headerData) {
+            result.headerData.partnerName = partner.name;
+        }
+        
+        // Collect all voucher codes from orderlines
+        const voucherCodes = [];
+        for (const line of this.lines) {
+            if (line.voucher_code) {
+                voucherCodes.push({
+                    code: line.voucher_code,
+                    name: line.product_id?.display_name || '',
+                    value: line.get_price_with_tax()
+                });
+            }
+        }
+        
+        // Add voucher codes to result if any exist
+        if (voucherCodes.length > 0) {
+            result.voucherCodes = voucherCodes;
+        }
+        
+        return result;
+    }
+});

open_workshop_pos/static/src/js/ows_receipt_header_patch.js

@@ -1,19 +1,5 @@
 /** @odoo-module */
 
-import { PosOrder } from "@point_of_sale/app/models/pos_order";
+// This file is now deprecated - order patching moved to ows_order_patch.js
-import { patch } from "@web/core/utils/patch";
+// Keeping for backwards compatibility
 
-// Patch the export_for_printing method to include partner data
-patch(PosOrder.prototype, {
-    export_for_printing(baseUrl, headerData) {
-        const result = super.export_for_printing(baseUrl, headerData);
-        
-        // Add partner name to headerData if partner exists
-        const partner = this.get_partner();
-        if (partner && result.headerData) {
-            result.headerData.partnerName = partner.name;
-        }
-        
-        return result;
-    }
-});

open_workshop_pos/static/src/xml/ows_voucher_codes_patch.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<templates id="template" xml:space="preserve">
+    <!-- Add voucher codes section after the receipt content -->
+    <t t-name="point_of_sale.OrderReceipt" t-inherit="point_of_sale.OrderReceipt" t-inherit-mode="extension">
+        <xpath expr="//div[hasclass('pos-receipt')]" position="inside">
+            <t t-if="props.data.voucherCodes and props.data.voucherCodes.length > 0">
+                <div class="voucher-codes-section mt-3">
+                    <div class="text-center fw-bold fs-5 mb-2">================================</div>
+                    <div class="text-center fw-bold fs-4 mb-2">GUTSCHEIN-CODES</div>
+                    <div class="text-center fw-bold fs-5 mb-3">================================</div>
+                    
+                    <t t-foreach="props.data.voucherCodes" t-as="voucher" t-key="voucher_index">
+                        <div class="voucher-code-item mb-3 p-2 border rounded">
+                            <div class="text-center fw-bold fs-1 mb-2" style="letter-spacing: 2px; font-family: monospace;">
+                                <t t-esc="voucher.code" />
+                            </div>
+                            <div class="text-center" t-if="voucher.name">
+                                <t t-esc="voucher.name" />
+                            </div>
+                            <div class="text-center fw-bold">
+                                Wert: <t t-esc="props.formatCurrency(voucher.value)" />
+                            </div>
+                        </div>
+                    </t>
+                    
+                    <div class="text-center mt-3 fst-italic">
+                        Bitte bewahren Sie diesen Code gut auf!
+                    </div>
+                </div>
+            </t>
+        </xpath>
+    </t>
+</templates>