我正在切换到一个使用自定义帖子类型的新主题：问题（作为帖子）和答案（作为帖子的评论）。我使用插件将当前帖子转化为疑问。现在，我必须将（每个帖子的）评论转换为与每个（转换后的）问题相关的答案。
我使用了下面的代码，但尽管所有的评论都进行了转换，并与每个问题建立了正确的关系，但我最终得到了多个答案，这取决于每个帖子中的评论数量。更清楚地说，如果一个问题之前有5条评论，现在我有5x5=25个答案。代码实际上插入了5次答案，而不是1次。
我认为问题出在foreach循环中。你能帮我修改代码以避免这个问题吗？
$args = array(
\'posts_per_page\' => -1,
\'post_type\' => \'thread\'
);
$threads= get_posts( $args ); // Get all posts of thread.
foreach($threads as $thread):
$comment_args= array(
\'post_id\' => $thread->ID
);
$thread_comments= get_comments($comment_args); // Get all comments of the post.
foreach($thread_comments as $thread_comment):
$reply_post= array(
\'post_status\' => \'publish\', // Set replies status.
\'post_type\' => \'answer\', // Set post type, post type must be answer.
\'post_parent\' => $thread->ID // Set id of question to make relation between question and answer
\'post_author\' => $thread_comment->user_id, // Set comment user id as post id.
\'post_title\' => \'RE: \'.$thread->post_title, //They prefix RE: to every reply so i think we might be do the same.
\'post_content\' => $thread_comment->comment_content // Set comment content as post content.
);
wp_insert_post($reply_post); // Insert the comment as post having post type replies.
endforeach;
endforeach;
最合适的回答,由SO网友:CK MacLeod 整理而成
Please try:
$args = array(
\'posts_per_page\' => -1,
\'post_type\' => \'thread\'
);
$thread_posts = get_posts( $args ); // Get all posts of thread.
foreach($thread_posts as $thread_post_object) {
/*not sure really need to be working IDs only, but is simpler, plus made checking was getting right ones easier */
$thread_post_IDs[] = $thread_post_object->ID;
}
foreach ($thread_post_IDs as $thread_post_ID) {
$comments_query = new WP_Comment_Query;
$thread_comments = $comments_query->query(array
(
\'post_id\' => $thread_post_ID,
\'status\' => \'approve\'
)
);
foreach ($thread_comments as $thread_comment) {
$reply_post = array(
\'post_status\' => \'publish\', // Set replies status.
\'post_type\' => \'answer\', // Set post type, post type must be answer.
\'post_parent\' => $thread_post_ID, // Set id of question to make relation between question and answer
\'post_author\' => $thread_comment->user_id, // Set comment user id as post id - requires registered users otherwise returns 0
\'post_title\' => \'RE: \' . get_the_title($thread_post_ID), //since have ID only need alternative way to get title
\'post_content\' => $thread_comment->comment_content // Set comment content as post content.
);
//print_r($reply_post); // if you want to test it first
wp_insert_post($reply_post); // if you want to see what happens!
}
}
