public function initCategoriesAssociation($id_root = null)
{
if (is_null($id_root)) {
$id_root = Configuration::get('PS_ROOT_CATEGORY');
}
$id_shop = (int) Tools::getValue('id_shop');
$shop = new Shop($id_shop);
$selected_cat = Shop::getCategories($id_shop);
if (empty($selected_cat)) {
// get first category root and preselect all these children
$root_categories = Category::getRootCategories();
$root_category = new Category($root_categories[0]['id_category']);
$children = $root_category->getAllChildren($this->context->language->id);
$selected_cat[] = $root_categories[0]['id_category'];
foreach ($children as $child) {
$selected_cat[] = $child->id;
}
}
if (Shop::getContext() == Shop::CONTEXT_SHOP && Tools::isSubmit('id_shop')) {
$root_category = new Category($shop->id_category);
} else {
$root_category = new Category($id_root);
}
$root_category = array('id_category' => $root_category->id, 'name' => $root_category->name[$this->context->language->id]);
$helper = new Helper();
return $helper->renderCategoryTree($root_category, $selected_cat, 'categoryBox', false, true);
}
