Prestashop subcategories menu inside a subcategory - prestashop

Question

I am trying to show the subcategories menu of prestashop categories inside all subcategories. By default you only can see the subcategories menu inside a category but you cant see the "brother" subcategories of a subcategory.
I think I only need to make this code to work inside a subcategory because this code works well inside a category:
{foreach from=$subcategories item=subcategory}
<li > <a href="{$link->getCategoryLink($subcategory.id_category, $subcategory.link_rewrite)|escape:'htmlall':'UTF-8'}"
class="cat_name">{$subcategory.name|escape:'htmlall':'UTF-8'}</a>
</li> {/foreach}
Any ideas?
Thanks so much

Answer 1

as always i don't give you a full code, but i tell you how to do it.
in smarty you need to create a function that takes as param number of parent category,
and in this function you need to use Category::getChildren( $id_category );then in smarty you need only take a loop through the smarty function.
regards
and sorry for my English.

Answer 2

For to start i would have created a override file in /override/controllers/, named CategoryController.php
And add this:
<?php
class CategoryController extends CategoryControllerCore
{
public function displayContent()
{
// Get the global smarty object.
global $smarty;
// Get current category's parent.
$parent_category = new Category($this->category->id_parent, self::$cookie->id_lang);
// Get parent category's subcategories (which is current category's siblings, including it self).
$category_siblings = $parent_category->getSubCategories((int)self::$cookie->id_lang)
/* Assign your siblings array to smarty. */
$smarty->assign(
array(
"category_siblings" => $category_siblings
)
);
/* This we run the normal displayContent, but pass the siblings array to
category.tpl */
parent::displayContent();
}
}
?>
And in product-list.tpl file:
<ul>
{foreach from=$category_siblings item=elemento}
<li {if $category->id == $elemento.id_category}class="active"{/if}> {$elemento.name} </li>
{/foreach}
</ul>
via Get sibling categories in category.tpl for the current category in prestashop