I have succesfully extended the "PosTicket" template from Point_of_Sale module and included couple of fields in that existing template. I have also written the function similar to that in screen.js (render_reciept) to get the values of the newly added fields. The problem I'm facing is, I am not able to call that function. How to execute that function?

This is the template that was extended:

<?xml version="1.0" encoding="UTF-8"?>

<template>

<t t-extend="PosTicket">

<t t-jquery=".receipt-orderlines"

t-operation="before">

customer name:<t t-esc="customer_name"/><br />

customer street:<t t-esc="street"/><br />

customer city:<t t-esc="city"/><br />

</t>

</t>

</template>

And this is the js file :

odoo.define('custom_module.print_cust_details_pos_bill', function (require) {

"use strict";

var core = require('web.core');

var screens = require('point_of_sale.screens');

var gui = require('point_of_sale.gui');

var QWeb = core.qweb;

var BillScreenWidget = screens.ReceiptScreenWidget.extend({

template: 'BillScreenWidget',

show: function(){

this._super();

var self = this;

this.render_receipt();

},

render_receipt: function(){

console.log("Render Reciept funtion called");

this._super();

//RKD-Start

var customer = this.pos.get_order().get_client();

var street = '';

var city ='';

var customer_name='';

if (customer != undefined)

{

customer_name = customer.name;

street = customer.street;

city=customer.city;

}

this.$('.pos-receipt-container').html(QWeb.render('PosTicket',{

widget:this,

order: order,

receipt: order.export_for_printing(),

orderlines: order.get_orderlines(),

paymentlines: order.get_paymentlines(),

customer_name:customer_name,

customer_street:street,

city:city,

}));

//RKD-End

}

});

gui.define_screen({name:'receipt', widget: custom_module.BillScreenWidget});

});