{% macro tree(Category) %}
    {% dump(Category.id) %}
    {% dump(Category.name) %}
    {% dump(Category.CategoryCount.product_count|default(0)) %}

    {% if Category.CategoryCount.product_count|default(0) > 0 %}
      <li>
          <a href="{{ url('product_list') }}?category_id={{ Category.id }}">{{ Category.name }}</a>
          {% if Category.children|length > 0 %}
              <ul>
                  {% for ChildCategory in Category.children %}
                      {{ _self.tree(ChildCategory) }}
                  {% endfor %}
              </ul>
          {% endif %}
      </li>
    {% else %}
    {% endif %}
{% endmacro %}

{{Category.ProductCategories|length}}

{% for hoge in Category.ProductCategories %}
{% dump(hoge.Product.Status.id) %}
{% endfor %}

    public function publishCount()
    {
        $result = array_reduce(
            array_map(
                function ($ProductCategory) {
                    $Product = $ProductCategory->getProduct();
                    if ($Product->getStatus()->getId() === 1) {
                        return 1;
                    } else {
                        return 0;
                    }
                }, $this->ProductCategories->toArray()),
            function ($carry, $item) {
                return $carry += $item;
            }
        );
        return $result ? $result : 0;
    }

{{ Category.publishCount }}

    /**
     * Get Creator
     *
     * @return \Eccube\Entity\Member
     */
     public function getCreator()
     {
         return $this->Creator;
     }

     /**
      * Get publishCount
      *
      * @return integer
      */
     public function publishCount()
     {
         $result = array_reduce(
             array_map(
                 function ($ProductCategory) {
                     $Product = $ProductCategory->getProduct();
                     if ($Product->getStatus()->getId() === 1) {
                         return 1;
                     } else {
                         return 0;
                     }
                 }, $this->ProductCategories->toArray()),
             function ($carry, $item) {
                 return $carry += $item;
             }
         );
         return $result ? $result : 0;
     }
  }

{% macro tree(Category) %}
     <li>
         <a href="{{ url('product_list') }}?category_id={{ Category.id }}">
             {{ Category.name }}【{{ Category.publishCount }}】
         </a>

    public function publishCount()
    {
        $result = array_reduce(
            array_map(
                function ($ProductCategory) {
                    $Product = $ProductCategory->getProduct();
                    if (\Eccube\Util\EntityUtil::isNotEmpty($Product) && $Product->getStatus()->getId() === 1) {
                        return 1;
                    } else {
                        return 0;
                    }
                }, $this->ProductCategories->toArray()),
            function ($carry, $item) {
                return $carry += $item;
            }
        );
        return $result ? $result : 0;
    }

<li>
    <a href="http://localhost/ec3/html/products/list?category_id=30">親カテゴリ【0】</a>
    <ul>
        <li>
            <a href="http://localhost/ec3/html/products/list?category_id=155">子カテゴリ1【28】</a>
        </li>
        <li>
            <a href="http://localhost/ec3/html/products/list?category_id=156">子カテゴリ2【26】</a>
        </li>
        <li>
            <a href="http://localhost/ec3/html/products/list?category_id=157">子カテゴリ3【9】</a>
        </li>
    </ul>
</li>