我正在尝试使自定义帖子类型由一群人（即用户部门）而不是仅由作者编辑。我不想让他们编辑其他组（部门）的人创建的帖子。为了解决这个问题，我使用map_meta_cap 筛选以映射自定义功能。这实际上工作得很好。如果我这样检查：user_can( $user_id_of_who_is_editing, \'edit_post\', $post_id ) 对于同一部门的用户，返回true。

现在，如果属于同一部门的非所有者用户出现以下错误：

不允许您编辑此帖子。

如果wordpress未检查current_user_can( \'edit_post\', $post_id ), 如何检查以及如何绕过它？

映射元映射筛选器：

add_filter( \'map_meta_cap\', function( $caps, $cap, $user_id, $args ) {
    global $dept_based_cap_post_types;

    if( isset( $args[0] ) ){
        $post = get_post( $args[0] );
        if( isset( $post->post_type ) && in_array( $post->post_type, $dept_based_cap_post_types ) ){
            $edit   = "edit_$post->post_type";
            $delete = "delete_$post->post_type";
            $read   = "read_$post->post_type";

            $post_belongs_to_users_department = lu_post_under_users_dept( $user_id, $post->ID );
        }
        else {
            return $caps;
        }
    }
    else {
        return $caps;
    }

    /* If editing, deleting, or reading a post, get the post and post type object. */
    if ( $edit == $cap || $delete == $cap || $read == $cap ) {
        $post_type = get_post_type_object( $post->post_type );

        /* Set an empty array for the caps. */
        $caps = array();
    }

    /* If editing a post, assign the required capability. */
    if ( $edit == $cap ) {
        if ( $post_belongs_to_users_department || ( $user_id == $post->post_author && \'draft\' == $post->post_status ) )
            $caps[] = $post_type->cap->edit_posts;
        else
            $caps[] = $post_type->cap->edit_others_posts;
    }

    /* If deleting a post, assign the required capability. */
    elseif ( $delete == $cap ) {
        if ( $post_belongs_to_users_department || ( $user_id == $post->post_author && \'draft\' == $post->post_status ) )
            $caps[] = $post_type->cap->delete_posts;
        else
            $caps[] = $post_type->cap->delete_others_posts;
    }

    /* If reading a private post, assign the required capability. */
    elseif ( $read == $cap ) {

        if ( \'private\' != $post->post_status )
            $caps[] = \'read\';
        elseif ( $post_belongs_to_users_department || ( $user_id == $post->post_author && \'draft\' == $post->post_status ) )
            $caps[] = \'read\';
        else
            $caps[] = $post_type->cap->read_private_posts;
    }

    return $caps;
}, 10, 4 );

$capabilities = array(
    \'edit_post\'           => \'edit_registration\',
    \'read_post\'           => \'read_registration\',
    \'delete_post\'         => \'delete_registration\',
    \'delete_posts\'        => \'delete_registrations\',
    \'delete_others_posts\' => \'delete_others_registrations\',
    \'edit_posts\'          => \'edit_registrations\',
    \'edit_others_posts\'   => \'edit_others_registrations\',
    \'publish_posts\'       => \'publish_registrations\',
    \'read_private_posts\'  => \'read_private_registrations\'
);

$args = array(
    \'labels\'             => $labels,
    \'public\'             => false,
    \'publicly_queryable\' => false,
    \'show_ui\'            => current_user_can( \'edit_programs\' ) ? \'edit.php?post_type=program\' : true,
    \'query_var\'          => false,
    \'capabilities\'       => $capabilities,
    \'has_archive\'        => false,
    \'hierarchical\'       => false,
    \'menu_icon\'          => \'dashicons-clipboard\',
    \'supports\'           => array( null ) // Array must contain a value to remove the default fields
);

register_post_type( \'registration\', $args );