我已经使用EdiFlow插件创建了许多自定义帖子状态。现在，我想做的是，如果贡献者访问帖子编辑页面，并且帖子状态为“已分配”以自动更改为“正在工作”。这将允许我知道并在他们开始工作时向他们发送电子邮件（在编辑后加载页面时）。

我正在尝试使用这个代码，它似乎没有任何作用

function educadme_assigned_to_inprogress( $post_id ) {
if ( current_user_can(\'edit_post\', $post_id) && !current_user_can( \'manage_options\' ) ) {

            $post = get_post($post_id);
            if (get_post_type()==\'post\' && $post->post_status ==\'assigned\' && strstr($_SERVER[\'REQUEST_URI\'], \'wp-admin/post-new.php\')) {                                   
                    $post->post_status = \'in-progress\'; // use any post status
                    wp_update_post($post); 
                }
    }
}
add_action(\'add_meta_boxes\', \'educadme_assigned_to_inprogress\');

另一个条件较少的简化版本可能是：

function educadme_assigned_to_inprogress( $post_id ) {
if ( current_user_can(\'edit_post\', $post_id) && !current_user_can( \'manage_options\' ) ) {

            $post = get_post($post_id);
            $screen = get_current_screen();

            if ($screen->base != \'post\')
                return;

            if ($post->post_status ==\'assigned\') {                                      
                $post->post_status = \'in-progress\'; // use any post status
                wp_update_post($post); 
            }
    }
}
add_action(\'add_meta_boxes\', \'educadme_assigned_to_inprogress\');

另一个类似的版本虽然起到了一定的作用，但导致了以下问题：

function educadme_assigned_to_inprogress( $post_id ) {
if ( current_user_can(\'edit_post\', $post_id) && !current_user_can( \'manage_options\' ) ) {

            $post = get_post($post_id);
            if (get_post_type()==\'post\' && $post->post_status ==\'assigned\' && strstr($_SERVER[\'REQUEST_URI\'], \'wp-admin/post-new.php\') || strstr($_SERVER[\'REQUEST_URI\'], \'wp-admin/post.php\')) {                                   
                    $post->post_status = \'in-progress\'; // use any post status
                    wp_update_post($post); 
                }
    }
}
add_action(\'add_meta_boxes\', \'educadme_assigned_to_inprogress\');

此代码的主要问题是，它不仅在指定自定义状态时运行。此外，它在列出所有帖子的页面上运行，而不仅仅在单个编辑帖子页面中运行。也就是说，如果我正在查看帖子列表，它会更改他们的帖子状态！

如有任何建议或更正，将不胜感激。我相信其他人也会觉得这很有用。

function educadme_assigned_to_inprogress() {
global $post;
$id = get_the_ID();
if ( current_user_can(\'edit_post\', $id) && !current_user_can( \'manage_options\' ) ) {

            $post = get_post($id);
            $screen = get_current_screen();             

            if ($screen->base != \'post\')
                return;

            if ( ! function_exists( \'EditFlow\' ) )
                return;

            $post_status = get_post_status();

            if ($post_status ==\'assigned\') {                                    
                $post->post_status = \'in-progress\'; // use any post status
                wp_update_post($post); 
            }
    }
}
add_action(\'admin_head\', \'educadme_assigned_to_inprogress\');

            if ( ! function_exists( \'EditFlow\' ) )
                return;

/**
 * Set default post status as \'in-progress\' for contributors
 *
 * @link https://wordpress.stackexchange.com/a/143128/26350
 *
 * @param  array $data 
 * @return array $data
 */

function wpse_143100_wp_insert_post_data( $data )
{
    $current_user = wp_get_current_user();      

    if( \'auto-draft\' === $data[\'post_status\']
        && \'post\' === $data[\'post_type\']
        && \'0000-00-00 00:00:00\' === $data[\'post_date_gmt\']
        && in_array( \'contributor\', $current_user->roles, TRUE ) 
    )
        $data[\'post_status\'] = \'in-progress\';

    return $data;
}           

add_filter( \'wp_insert_post_data\', \'wpse_143100_wp_insert_post_data\' );

new -> auto-draft

auto-draft -> draft

draft -> in-progress
new   -> inherit (revision created)

in-progress -> in-progress

function educadme_assigned_to_inprogress()
{    
    global $post;
    if ( get_current_user_id() == $post->post_author  // current user is the post author
         && \'post\' === get_post_type()                // current post type is \'post\'
         && \'assigned\' === get_post_status()          // current post status is \'assigned\'
         && ! current_user_can( \'publish_post\' )      // current user is \'contributor\'
         && function_exists( \'EditFlow\' )             // Edit flow plugin is installed
    ):
        if ( $post->ID > 0 ):
            $post->post_status = \'in-progress\';  // use any post status
            $pid = wp_update_post( $post );      // update post             
            if ( is_wp_error( $pid ) ):          // debug
                // error_log( $pid->get_error_message(), 1 );
            endif;
        endif;
    endif;
}

add_action( \'admin_head-post.php\', \'educadme_assigned_to_inprogress\');