How to display child categories + image, as well as subcategories?

Question

opencart

Good evening! Tell me the module or the possibility of implementing the following:
In the catalog of categories (no matter what level), you need to display:
- Category picture
- Category name
- Subcategories
An example of how I want to do it can be found here www.technomarin.ru/index.php?route= product/categor...
I say right away, I just started working with the operating card)

Answer 1

In controller /product/category.php

$data['categories'] = array();

$results = $this->model_catalog_category->getCategories($category_id);

foreach ($results as $result) {
             
  $children_data = array();

  $children = $this->model_catalog_category->getCategories($result['category_id']);

  foreach($children as $child) {
    $filter_data = array('filter_category_id' => $child['category_id'], 'filter_sub_category' => true);

    $children_data[] = array(
      'category_id' => $child['category_id'],
      'name' => $child['name'] . ($this->config->get('config_product_count') ? ' (' . $this->model_catalog_product->getTotalProducts($filter_data) . ')' : ''),
      'href' => $this->url->link('product/category', 'path=' . $result['category_id'] . '_' . $child['category_id'])
    );
  }
 
  $filter_data = array(
    'filter_category_id'  => $result['category_id'],
    'filter_sub_category' => true
  );

  $data['categories'][] = array(
    'name' => $result['name'] . ($this->config->get('config_product_count') ? ' (' . $this->model_catalog_product->getTotalProducts($filter_data) . ')' : ''),
    'children'    => $children_data,
    'href' => $this->url->link('product/category', 'path=' . $this->request->get['path'] . '_' . $result['category_id'] . $url)
   );
 }

and in template

{% if category.children %}
   {% for child in category.children %}
        <li">
          <div >
               <a href="{{ child.href }}">{{ child.name }}</a>
          </div>
        </li>
     {% endfor %}
{% endif %}

And update the modifier cache