我试图在自定义帖子类型首次发布时发送电子邮件，因为它将该帖子分配给一个人，并要求仅将电子邮件发送给该用户。用户是从列出特定用户角色的ACF选择框中选择的。

用户登录后，他们只能看到分配给他们的帖子，保存帖子后，他们可以填写其余自定义字段，然后向所有管理员发送电子邮件，说明用户已更新帖子。这是通过检查旧状态是否已发布和新状态是否已发布来实现的。

分配的用户只能在前端更新帖子，但管理员可以通过仪表板创建帖子，并可以在前端或仪表板中编辑帖子。

我的所有功能都正常工作，除了发送给ACF填写的post设置的自定义字段中的所选人员部分。在使用add\\u操作保存post之前，字段似乎不会被填充（“post\\u updated”、“updatepostsz”，10，3）；这不允许我仅在更新已发布的帖子时使用ACF填充的信息。

如果我的代码看起来有误，那是因为我为了帮助解决这个问题而精简了代码以减少混乱。

我的代码是：

    function updatepostsz( $post_id, $post_after, $post_before ) {

  // Grab our post status
  $post_status = get_post_status($post_id);
  // get post type for checking
  $post_type = get_post_type( $post_id );
  // Before and after
  $post_after_email_var  = $post_after->post_status;
  $post_before_email_var = $post_before->post_status;



  // Stop anything from happening if revision or where we dont need it to be doing things
  if ( wp_is_post_revision( $post_id ) ) { return; }


  if ( defined(\'DOING_AUTOSAVE\') && DOING_AUTOSAVE ) return;
  // unhook this function so it doesn\'t loop infinitely
  remove_action( \'save_post\', \'updateposts\' );

  // If this isn\'t a custom post, run code.
  if ( "task" != $post_type ) return;


  // run codes on creation of new task only to email asigned person
  if (  $post_before_email_var != \'publish\' &&  $post_after_email_var  == \'publish\' ) 
  {


     // get user running script
     $current_user = wp_get_current_user();
     // the current users name
     $cu = $current_user->user_login;

     // all our information of custom post
     $value_person = get_field( "responsible_person",$post_id );
     // link to the post
     $value_post_link = get_permalink( $post_id );
     //grabs the id of the person assigned to
     $select_staff_id = $value_personcu[\'ID\'];
     // use our id to grab details on the user
     $author_obj = get_user_by(\'id\', $select_staff_id);
     $user_email = $author_obj->user_email;


    //does not work in getting fields!!!!!!!!!!!!!!!
    // Fields not saved until after this hook so email is empty
    //////////////////////////////////////////////////////////////////
    $to = $user_email;
    $subject = \'A user email \'.$user_email.\'  \'.$post_id.\' has been assigned to you\';
    $body = \'You have been assigned a post task due by: \'.$value_date.\' \';
    wp_mail( $to, $subject, $body);
    ///////////////////////////////////////////////////////////////////

  }


  // run codes only when a update is made to the task and works!
  if ( $post_before_email_var == \'publish\' && $post_after_email_var  == \'publish\' )
  {
     // get user running script
     $current_user = wp_get_current_user();
     // the current users name
     $cu = $current_user->user_login;

     // all our information of custom post
     $value_person = get_field( "responsible_person" );
     // link to the post
     $value_post_link = get_permalink( $post_id );

           //////////////////////////////////////////////////////////////////
           $to = $user->user_email;
           $subject = \'post updated by user\';
           $body = \'body message\';
           wp_mail( $to, $subject, $body);
           ///////////////////////////////////////////////////////////////////

  }

}
add_action( \'post_updated\', \'updatepostsz\', 10, 3 );