如何将内容从一种帖子类型复制到另一种？

Question

我试图在创建或编辑事件时将某些字段从事件自定义帖子类型复制到标准博客文章。我现在已经开始工作，当一个事件被更新或编辑时，它将创建一个博客文章，但如果我要添加一个全新的事件，它会添加2个博客文章，然后添加正确的帖子与内容。它创建的第一个帖子是自动草稿，然后它创建一个标题和作者，但没有内容。它创建的第3个帖子是正确的。当我添加新活动时，如何防止它创建这些额外的帖子？

到目前为止这是我的代码：

function create_event_post( $post_id ) {

    // If this is just a revision, don't create a new post.
    if ( wp_is_post_revision( $post_id ) )
        return;

    // Set the title, thumbnail id, author, and content variables
    $post_title = get_the_title( $post_id );
    $post_type = get_post_type($post_id);
    $post_content = get_post_field('post_content', $post_id);
    $thumbnail_id = get_post_thumbnail_id( $post_id );
    $author_id = get_post_field ('post_author', $post_id);
    $author_name = get_the_author_meta( 'display_name' , $author_id );  

    // Set the variables for the new post to the same as the event post     
    $new_post = array(
            'comment_status'    =>  'closed',
            'ping_status'       =>  'closed',
            'post_author'       =>  $author_id,
            'post_title'        =>  $post_title,
            'post_content'      =>  $post_content,
            'post_status'       =>  'publish',
            'post_type'     =>  'post'
        );  

    // If the post is not "tribe_events", don't create a new post.  
    if ( "tribe_events" != $post_type ) 
        return;

    // Create the new post and retrieve the id of the new post
    $new_post_id = wp_insert_post ( $new_post );
    // Set the featured image for the new post to the same image as event post 
    set_post_thumbnail( $new_post_id, $thumbnail_id );      

}
add_action( 'save_post', 'create_event_post' );

Answer 1

搞定了。如果有人想看看它是如何工作的，这是最终的代码。

add_action( 'save_post', 'create_event_post' );

function create_event_post( $post_id ) {

    // Set the title, thumbnail id, author, and content variables
    $post_title = get_the_title( $post_id );
    $post_type = get_post_type($post_id);
    $post_content = get_post_field('post_content', $post_id);
    $thumbnail_id = get_post_thumbnail_id( $post_id );
    $author_id = get_post_field ('post_author', $post_id);

    // If the post is not "tribe_events", don't create a new post.  
    if ( "tribe_events" != $post_type ) 
        return;

    $new_post = array(
                'comment_status'    =>  'closed',
                'ping_status'       =>  'closed',
                'post_author'       =>  $author_id,
                'post_title'        =>  $post_title,
                'post_content'      =>  $post_content,
                'post_status'       =>  'publish',
                'post_type'     =>  'post'
            );

    remove_action( 'save_post', 'create_event_post' );

    $post_exists = get_page_by_title( $post_title, $output, "post" );

    if ( !empty($post_exists) ) {
        // Update post
        $update_post = array(
            'ID'           =>   $post_exists->ID,
            'post_title'   =>   $post_title,
            'post_content' =>   $post_content,
        );

        // Update the post into the database
        wp_update_post( $update_post );
        set_post_thumbnail( $post_exists->ID, $thumbnail_id );
    }
    else {
        // Create the new post and retrieve the id of the new post
        $new_post_id = wp_insert_post ( $new_post );
        // Set the featured image for the new post to the same image as event post 
        set_post_thumbnail( $new_post_id, $thumbnail_id );
    }           

    // Now hook the action
    add_action( 'save_post', 'create_event_post' );
}