Wordpress如何从其他特定类别的产品中获取类别

Question

我有服装产品。一种产品有多个类别，如“性别”（“男性”或“女性”）和“类型”（如“裤子”、“衬衫”等）。

我想列出所有类别和子类别的“类型”从产品中存在的“男子”类别。

"type"类别的ID： 1696

$args = array(
  'taxonomy' => 'product_cat',
  'orderby'  => 'title',
  'order'    => 'ASC',
  'child_of'   => 1696,
);
$categories = get_terms( $args );
print_r($categories);

这段代码给了我1696下的所有类别，但我只想从也属于“男性”类别的产品中获得“类型”类别。

我明白了吗？

非常感谢你的帮助。

Answer 1

谢谢你的帮助，但这不是我需要的。

我找到了实现我想要的东西的方法。一定有更好的方法，但我是这样做的：

我循环每个产品，如果它们属于性别类别（“女性”和“男性”），就把它们放在数组中。

    $categories_femme = array(); // 1718
    $categories_homme = array(); // 1700
    
    $args = array(
        'post_type' => 'product',
        'posts_per_page' => -1
    );
    $loop = new WP_Query( $args );
    if ( $loop->have_posts() ): while ( $loop->have_posts() ): $loop->the_post();

      global $product;

      $p_id = $product->get_id();
      
      // FEMME
      if( has_term( 1718, 'product_cat' ) ) {
        $categories_femme[] = wp_get_post_terms($p_id, 'product_cat');
      }
      // HOMME
      if( has_term( 1700, 'product_cat' ) ) {
        $categories_homme[] = wp_get_post_terms($p_id, 'product_cat');
      }

    endwhile; endif; wp_reset_postdata();

之后，我格式化数组以获得类别的结构（每个性别一个数组）：数组（'term_id'=

    $categories_femme_formated = array();
    foreach ($categories_femme as $categorie_femme) {
      foreach ($categorie_femme as $categoriefemme) {
        $categories_femme_formated[$categoriefemme->term_id] = $categoriefemme->name;
      }
    }
    
    $categories_homme_formated = array();
    foreach ($categories_homme as $categorie_homme) {
      foreach ($categorie_homme as $categoriehomme) {
        $categories_homme_formated[$categoriehomme->term_id] = $categoriehomme->name;
      }
    }

在此之后，我将遍历所有衣服类别，并查看之前创建的数组中是否存在此类别ID。如果是，我将把这个类别添加到菜单中。

    $args = array(
      'taxonomy' => 'product_cat',
      'hide_empty' => false,
      'parent'   => 1696
    );
    $product_cat = get_terms( $args );

    // FEMME
    $count_order = 100;
    foreach ($product_cat as $parent_product_cat)
    {
      $p_id = $parent_product_cat->term_id;
      if (array_key_exists($p_id, $categories_femme_formated)) {
        $count_order++;
        $menu_items[] = _custom_nav_menu_item( $categories_femme_formated[$p_id], get_term_link($p_id), $count_order, 11407 );
        
        $child_args = array(
                'taxonomy' => 'product_cat',
                'hide_empty' => false,
                'parent'   => $parent_product_cat->term_id
            );
        $child_product_cats = get_terms( $child_args );
        $parent_order = $count_order;
        foreach ($child_product_cats as $child_product_cat)
        {
          $c_id = $child_product_cat->term_id;
          if (array_key_exists($c_id, $categories_femme_formated)) {
            $count_order++;
            $child_menu_id = 1000000 + $parent_order + 11407;
            $menu_items[] = _custom_nav_menu_item( $categories_femme_formated[$c_id], get_term_link($c_id), $count_order, $child_menu_id );
            
          }
        }
      }
    }
    
    // HOMME
    $count_order = 100;
    foreach ($product_cat as $parent_product_cat)
    {
      $p_id = $parent_product_cat->term_id;
      if (array_key_exists($p_id, $categories_homme_formated)) {
        $count_order++;
        $menu_items[] = _custom_nav_menu_item( $categories_homme_formated[$p_id], get_term_link($p_id), $count_order, 11408 );
        
        $child_args = array(
                'taxonomy' => 'product_cat',
                'hide_empty' => false,
                'parent'   => $parent_product_cat->term_id
            );
        $child_product_cats = get_terms( $child_args );
        $parent_order = $count_order;
        foreach ($child_product_cats as $child_product_cat)
        {
          $c_id = $child_product_cat->term_id;
          if (array_key_exists($c_id, $categories_homme_formated)) {
            $count_order++;
            $child_menu_id = 1000000 + $parent_order + 11408;
            $menu_items[] = _custom_nav_menu_item( $categories_homme_formated[$c_id], get_term_link($c_id), $count_order, $child_menu_id );
            
          }
        }
      }
    }

为了让每个人都能理解，我在一个函数中调用了以下代码：

add_filter( 'wp_nav_menu_objects', 'my_dynamic_menu_items' );

这里是_custom_nav_menu_item函数：

function _custom_nav_menu_item( $title, $url, $order, $parent = 0 ){
  $item = new stdClass();
  $item->ID = 1000000 + $order + $parent;
  $item->db_id = $item->ID;
  $item->title = $title;
  $item->url = $url;
  $item->menu_order = $order;
  $item->menu_item_parent = $parent;
  $item->type = '';
  $item->object = '';
  $item->object_id = '';
  $item->classes = array();
  $item->target = '';
  $item->attr_title = '';
  $item->description = '';
  $item->xfn = '';
  $item->status = '';
  $item->icon = '';
  $item->nolink = '';
  $item->hide = '';
  $item->mobile_hide = ''; 
  $item->cols = ''; 
  $item->tip_label = '';
  $item->popup_type = 'wide';
  $item->popup_pos = '';
  $item->popup_cols = 'col-4';
  $item->popup_max_width = '';
  $item->popup_bg_image = '';
  $item->popup_bg_pos = ''; 
  $item->popup_bg_repeat = ''; 
  $item->popup_bg_size = ''; 
  $item->popup_style = '';
  $item->block = '';
  $item->preview = '';
  $item->preview_fixed = ''; 
  $item->current = '';
  $item->current_item_ancestor = '';
  $item->current_item_parent = '';
  return $item;
}

再次感谢您的帮助。：）

Answer 2

由于wordpress一次只允许一个id用于参数的child\u，因此您可以创建一个自定义数组，并为所需的每个父类别运行get\u terms。

从文件中：

• child\u of-（int）术语ID，用于检索的子术语。如果传递了多个分类法，则忽略$child\u of。默认值为0
wp\u术语\u查询

$child_cats = array();

$parent_cats = array(1696, {the other category id});

$args = array(
  'taxonomy' => 'product_cat',
  'orderby'  => 'title',
  'order'    => 'ASC',
  'child_of'=> $parent_cat
);

foreach ($parent_cats as $parent_cat) 
{
    $child_cats = array_merge($child_cats, get_terms($args));
};

print_r($child_cats);

如果这就是你要找的，请告诉我！