Question

我试图结合我的两个功能，但我无法弄清楚如何。我想要特色图片。我知道有很多类似的问题，但它们始终以wp_die();结尾，在我看来并不是真的用户友好。我无法解决Wordpress错误信息。

我的代码应该做什么：

检查帖子在保存/发布时是否有特色图片
如果没有，请将帖子设为草稿并显示错误消息（需要特色图片！帖子未发布/更新。）

PS：目前，在打开或创建帖子时会立即显示错误消息。它应该不是那样的。

我目前的代码是：

function featured_image_required($post_id, $post, $update){
    $post_type  = $post->post_type;
    $id         = $post_id;

    if(!has_post_thumbnail($id) AND $post_type == "custom_post_type") {
        remove_action('save_post', 'featured_image_required'); 
        $query = array(
            'ID' => $id,
            'post_status' => 'draft',
        );
        wp_update_post($query, true);
        add_action('save_post', 'featured_image_required');
    }
}
add_action('save_post', 'featured_image_required', 10, 3 );

function show_editor_message($messages){
    global $post;
    $post_type = $post->post_type;

    if (!has_post_thumbnail($post_id) AND $post_type == "custom_post_type") {
        $error_message = 'Featured Image is required! The post was not published.';
        add_settings_error('featured_image_required', '', $error_message, 'error');
        settings_errors( 'featured_image_required' );
        return;
    }
    return $messages;
}
add_action('post_updated_messages', 'show_editor_message');

Answer 1

一个选项就是测试帖子的初始状态（此处为自动草稿＆＃39;），如果帖子处于该状态，则不显示消息。

save_post操作需要对状态进行额外检查，否则，如果帖子没有精选图片（例如，无法删除帖子），则该帖子将始终返回到草稿状态

以下是修改过的代码：

function featured_image_required($post_id, $post, $update){
    $post_type  = $post->post_type;
    $id         = $post_id;

    if($post->post_status == "publish" AND !has_post_thumbnail($id) AND $post_type == "custom_post_type") {
        remove_action('save_post', 'featured_image_required'); 
        $query = array(
            'ID' => $id,
            'post_status' => 'draft',
        );
        wp_update_post($query, true);
        add_action('save_post', 'featured_image_required');
    }
}
add_action('save_post', 'featured_image_required', 10, 3 );

function show_editor_message($messages){
    global $post;
    $post_type = $post->post_type;

    if ($post->post_status != "auto-draft" AND !has_post_thumbnail($post->ID) AND $post_type == "custom_post_type") {
        $error_message = 'Featured Image is required! The post was not published.';
        add_settings_error('featured_image_required', '', $error_message, 'error');
        settings_errors( 'featured_image_required' );
        return;
    }
    return $messages;
}
add_action('post_updated_messages', 'show_editor_message');

需要制作精选图片+显示自定义错误消息

1 个答案: