add button in my account - prestashop module

<?php
/**
* 2007-2016 PrestaShop
*
* NOTICE OF LICENSE
*
* This source file is subject to the Academic Free License (AFL 3.0)
* that is bundled with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://opensource.org/licenses/afl-3.0.php
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@prestashop.com so we can send you a copy immediately.
*
* DISCLAIMER
*
* Do not edit or add to this file if you wish to upgrade PrestaShop to newer
* versions in the future. If you wish to customize PrestaShop for your
* needs please refer to http://www.prestashop.com for more information.
*
*  @copyright 2007-2016 PrestaShop SA
*  @license   http://opensource.org/licenses/afl-3.0.php  Academic Free License (AFL 3.0)
*  International Registered Trademark & Property of PrestaShop SA
*/

if (!defined('_PS_VERSION_'))
  exit;

class MyAccountButton extends Module
{
    public function __construct()
    {
        $this->name = "myaccountbutton";
        $this->tab = "front_office_features";
        $this->version = "1.0.0";
        $this->author = "Webévasion";
        $this->bootstrap = true;

        parent::__construct();
        $this->controllers = array('default');
        $this->displayName = $this->l('My account button');
        $this->description = $this->l('Add a button in my account');
        $this->confirmUninstall = $this->l('Do you really want to uninstall '.$this->displayName.' ?');
    }

    public function install()
    {
        if(Shop::isFeatureActive())
            Shop::setContext(Shop::CONTEXT_ALL);

        return parent::install() && $this->registerHook('displayMyAccountBlock');
    }

    public function uninstall()
    {
        return parent::uninstall();
    }

    public function hookDisplayCustomerAccount($params)
    {
        $this->smarty->assign('in_footer', false);
        return $this->display(__FILE__, 'my-account.tpl');
    }
}