PHP 将 WP 术语子术语导入自定义帖子类型

Question

我创建了一个导入工具，用于从 json 文件导入数据，以创建自定义帖子类型的帖子。这一切都很好，我可以导入 acf 字段以及指定的术语。我的问题是，如何导入分配给该术语的子术语。

我现在有两个变量来收集数据。我希望有变量 eventCategoryChildName 将其值作为子项分配给 eventCategoryID

  $eventCategoryChildName = $ev['OfficialCity'];
  $eventCategoryId = $ev['RegionID'];

以下是目前在没有子术语的情况下导入术语的功能：

 // set category terms
 $cat_ids = $eventCategoryName;
 // Add these categories, note the last argument is true.
 wp_set_object_terms( $post_id, $cat_ids, 'lan', true );

编辑：

所以我设法将孩子与正确的父母相关联，但他们没有被检查到帖子

    // set category terms
    $cat_ids = $eventCategoryName;

    // Import category name
    $term_taxonomy_ids = wp_set_object_terms( $post_id, $cat_ids, 'lan', true );

    $parent_term = wp_set_object_terms( $post_id, $cat_ids, 'lan', true );

    // Check terms import for errors
    if ( is_wp_error( $term_taxonomy_ids ) ) {
        // There was an error somewhere and the terms couldn't be set.
        echo $return->get_error_message();
    } else {
        // Success! These categories were added to the post.
    }


    $parent_term = term_exists( $eventCategoryName, 'lan' ); 
    wp_insert_term(
      $eventCategoryChildName,                // Customize as you wish
      'lan',
      array(
          'parent'      => $parent_term['term_id'],
          'slug'        => $eventCategoryChildName  // Customize as you wish
      )
    );

    if ( !is_wp_error( $child_term_result ) ) {
      wp_set_object_terms( $post_id, $child_term_result['term_id'], 'lan', true );
  }

Answer 1

首先，你应该检查wp_set_object_terms的结果，看看是否返回错误：

$term_taxonomy_ids = wp_set_object_terms( $post_id, $cat_ids, 'lan', true );
if ( is_wp_error( $term_taxonomy_ids ) ) {
    // There was an error somewhere and the terms couldn't be set.
    echo $return->get_error_message();
} else {
    // Success! These categories were added to the post.
}

那么，您要添加的术语可能不存在。在这种情况下，wp_set_object_terms 将返回 invalid_taxonomy 错误。因此，您可能希望将此类缺失的术语添加到您的分类中：

wp_insert_term(
    'Term Name',                      // Customize as you wish
    'lan',
    array(
        'description' => 'Term desc', // Customize as you wish
        'slug'        => 'lan-slug1'  // Customize as you wish
    )
);

// For child term:
$parent_term = term_exists( 'parent_term_id', 'lan' );
$child_term_result = wp_insert_term(
    'Child Term Name',                // Customize as you wish
    'lan',
    array(
        'parent'      => $parent_term['term_id']
        'description' => 'Term desc', // Customize as you wish
        'slug'        => 'lan-slug1'  // Customize as you wish
    )
);

// Add the child term to the post
if ( !is_wp_error( $child_term_result ) ) {
     wp_set_object_terms( $post_id, $child_term_result['term_id'], 'lan', true );
}

最后，请确保在 - 至少 - Wordpress 的 init 挂钩之后执行此代码。例如：

function parse_my_json() {
    // Your code here
}
add_action('init','parse_my_json');

有用的参考资料：

• https://codex.wordpress.org/Function_Reference/wp_set_object_terms
• https://codex.wordpress.org/Class_Reference/WP_Error
• https://codex.wordpress.org/Function_Reference/wp_insert_term