Adding fields to backoffice product page

[zwora]

Hi,

 

I would like to enable my module to add some fields (of input type) in the backoffice product page. These fields will be used to retrieve/send data from/to database table. In prestashop 1.5 I've done this as follows:

 

In the main module file (modulename.php) I had function hookdisplayBackOfficeHeader($params) where I received data from DB and packed them to an array like this: $this->smarty->assign(array( data comes here ));

 

The function called template file like that: return $this->display(__FILE__,'template_file.tpl');

 

In the template file I had:

 

<script type="text/javascript">
    $(document).ready(function(){
        $("#product_form #product-tab-content-Informations table:eq(0) tr:eq(0)").after(""

and then some html to dislpay the fields.

 

It was working perfectly in PS 1.5, but in PS 1.6 it doesn't.

 

What shall I do to make my module working the way I like to (displaying the fields in BO)?

 

I can of course modify BO template file by hand, but I don't want to the job this way.

 

Any help appreciated.