first commit

.gitignore

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+__pycache__/
+*.py[cod]
+*$py.class
+.DS_Store
+.idea/
+.vscode/
+*.swp
+*.swo

README.md

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+# POS Prevent Combo Split
+
+This module prevents users from splitting individual combo sub-items on POS bill/order splitting.
+
+## Features
+
+- Disable individual combo sub-item clicks on POS bill splitting screen.
+- Set combo sub-items visual state to dimmed and unclickable.
+- Force combo splitting from the combo parent only, which automatically splits both the parent and its sub-items.
+
+## Installation
+
+1. Install the pos_prevent_combo_split module.
+2. Restart Odoo server and update the app list.

__init__.py

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+# -*- coding: utf-8 -*-
+# Part of Odoo. See LICENSE file for full copyright and licensing details.

__manifest__.py

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+{
+    'name': 'POS Prevent Combo Split',
+    'version': '19.0.1.0.0',
+    'category': 'Point of Sale',
+    'summary': 'Prevent splitting individual combo sub-items on POS bill/order splitting',
+    'description': """
+        Prevents splitting individual combo sub-items on POS bill/order splitting.
+        Allows splitting only from the combo parent, which automatically splits both the parent and its sub-items.
+    """,
+    'author': 'Suherdy Yacob',
+    'depends': ['pos_restaurant'],
+    'data': [],
+    'assets': {
+        'point_of_sale._assets_pos': [
+            'pos_prevent_combo_split/static/src/app/**/*',
+        ],
+    },
+    'installable': True,
+    'license': 'LGPL-3',
+}

static/src/app/screens/split_bill_screen/split_bill_screen_patch.js

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+/** @odoo-module **/
+
+import { SplitBillScreen } from "@pos_restaurant/app/screens/split_bill_screen/split_bill_screen";
+import { patch } from "@web/core/utils/patch";
+
+patch(SplitBillScreen.prototype, {
+    onClickLine(line) {
+        if (line.combo_parent_id) {
+            return;
+        }
+        super.onClickLine(line);
+    }
+});

static/src/app/screens/split_bill_screen/split_bill_screen_patch.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<templates id="template" xml:space="preserve">
+    <t t-name="pos_prevent_combo_split.SplitBillScreen" t-inherit="pos_restaurant.SplitBillScreen" t-inherit-mode="extension">
+        <xpath expr="//Orderline" position="attributes">
+            <attribute name="class">{'selected active': qtyTracker[line.uuid] and qtyTracker[line.uuid] !== 0, 'opacity-75 pointer-events-none': line.combo_parent_id}</attribute>
+        </xpath>
+    </t>
+</templates>