使用 WP Discourse 将 WordPress 文章发布到 Discourse

我正在尝试为不同的自定义帖子类型设置不同的类别。下面的代码可以在 WordPress 管理员中选择正确的类别。但是,在发布到 Discourse 时,类别并未在那里设置(并默认为“未分类”)。

也许我遗漏了显而易见的东西?

// WP Discourse 为 CPTS 设置 CPT 论坛类别

add_filter( 'wp_discourse_publish_categories', 'radhr_filter_categories_policies', 10, 2 );
function radhr_filter_categories( $categories, $post ) {
	if ( 'policy' === get_post_type( $post ) ) {
		$output = [];
		foreach ( $categories as $category ) {
			if ( 'Policies' === $category['name']) {
				$output[] = $category;
			}
		}
		return $output;
	}

	elseif ( 'guide' === get_post_type( $post ) ) {
		$output = [];
		foreach ( $categories as $category ) {
			if ( 'Guides' === $category['name']) {
				$output[] = $category;
			}
		}
		return $output;
	}

	elseif ( 'post' === get_post_type( $post ) ) {
		$output = [];
		foreach ( $categories as $category ) {
			if ( 'Blogs' === $category['name']) {
				$output[] = $category;
			}
		}
		return $output;
	}

	return $categories;
}