odoo-pos-inherit

In this repo i inherit the pos module and added QR code to pos receipt

1- Create new Odoo Module using command line

$ python odoo-bin scaffold <module name> <where to put it>

2- Inherit OrderReceipt JS Screen in odoo

1 - Create new js class and put this code that defin a function referenced to

odoo.define('point_of_sale.OrderReceipt', function (require) {
    'use strict';

    const PosComponent = require('point_of_sale.PosComponent');
    const Registries = require('point_of_sale.Registries');

    function myFunction(text) {
        return text
    }

    class OrderReceipt extends PosComponent {


        constructor() {
            console.log("eslam faisal constructor")
            super(...arguments);
            this._receiptEnv = this.props.order.getOrderReceiptEnv();
        }

        willUpdateProps(nextProps) {
            this._receiptEnv = nextProps.order.getOrderReceiptEnv();
        }

        get receipt() {
            return this.receiptEnv.receipt;
        }

        clientName(receipt) {
            return receipt.client.name
        }

        get orderlines() {
            return this.receiptEnv.orderlines;
        }

        get paymentlines() {
            return this.receiptEnv.paymentlines;
        }

        get isTaxIncluded() {
            return Math.abs(this.receipt.subtotal - this.receipt.total_with_tax) <= 0.000001;
        }

        get receiptEnv() {
            return this._receiptEnv;
        }

        isSimple(line) {
            return (
                line.discount === 0 &&
                line.is_in_unit &&
                line.quantity === 1 &&
                !(
                    line.display_discount_policy == 'without_discount' &&
                    line.price < line.price_lst
                )
            );
        }
    }

    OrderReceipt.template = 'OrderReceipt';

    Registries.Component.add(OrderReceipt);

    return OrderReceipt;
});

2- Add new Order Receipt that you created recently to JS directory in your module

3- Create a #data.xml file to xpath the new JS file screen and define it in manifest.py file and make the module depends on point_of_sale

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>

        <template id="assets" inherit_id="point_of_sale.assets">
            <xpath expr="//script[@src='/point_of_sale/static/src/js/Screens/ReceiptScreen/OrderReceipt.js']"
                   position="replace">
                <script type="text/javascript" src="/pos_inherit/static/src/js/OrderReceipt.js"/>
            </xpath>

        </template>

    </data>
</odoo>

3- Inherit OrderReceipt XML file

1 - Create new xml file pos_receipt.xml and register it in manifest.py but in qweb section

2- inherit pos receipt screen xml by xpath
3 - use t tag for access JS values
4 - use api.qrserver.com public api to get the QR code with given data

<?xml version="1.0" encoding="UTF-8"?>
<templates id="template" xml:space="preserve">
    <t t-name="OrderReceipt" t-inherit="point_of_sale.OrderReceipt" t-inherit-mode="extension" owl="1">
        <xpath expr="//div[hasclass('pos-receipt-order-data')]" position="after">

            <img id="qr_image"
                 style="width:180px;height:180px; margin-left:60px;margin-top:16px;"/>

            <script>
                let image = document.getElementById('qr_image');
                let qrData = " :اسم المورد "+ " <t t-esc="receipt.company.name"/>";
                qrData += "%0A";
                qrData += "الرقم الضريبي: "+ "<t t-esc="receipt.company.vat"/>";
                qrData += "%0A";
                qrData += ":التاريخ "+ "<t t-esc="receipt.date.localestring"/>";
                qrData += "%0A";
                qrData += "المبلغ الكلي: "+ "<t t-esc="receipt.total_with_tax"/>";
                qrData += "%0A";
                qrData += "العميل: "+ "<t t-esc="receipt.client.name"/>";
                qrData += "%0A";
                qrData += "الرقم الضريبي: "+ "<t t-esc="receipt.client.vat"/>";
                image.src = "https://api.qrserver.com/v1/create-qr-code/?data="+qrData;
                </script>
        </xpath>

        <xpath expr="//div[hasclass('cashier')]" position="after">
        <div>Served for <t t-esc="receipt.client.name"/></div>

        </xpath>
    </t>
</templates>