category tree in module

[jiro]

Hello,

 

I want to adapt one of modules from presta 1.5 to presta 1.6 but I have a problem with category tree in it. There should be a possibility to check some categories and modules should remember those checks... but in my case it doesnt do that. I can check all but after saving all checks disappear.

 

There is a code of categories from this module:

 

 

    if (Tools::isSubmit('submit')) {
            if (Tools::getValue('categoryBox') && count(Tools::getValue('categoryBox')))
                Configuration::updateValue('POROWNYWARKI_CATEGORIES', implode(',', Tools::getValue('categoryBox')));
            else
                Configuration::updateValue('POROWNYWARKI_CATEGORIES', '');

 

 

$selectedCat = explode(',', Configuration::get('POROWNYWARKI_CATEGORIES'));
        $helper = new HelperTreeCategories('categories-treeview');
        $helper->setUseCheckBox(true);
 

                  <table border="0" cellspacing="3" cellpadding="4">
                                <tr>
                                        <td class="title">Wybierz kategorie:</td>
                                        <td>' . $helper->render(null, $selectedCat) . '</td>
                                </tr>

 

I would be really greatfull for help.

Edited November 10, 2014 by jiro (see edit history)