WordPress的 - 取消後保存過程

Question

當發佈內容包含特定字符串，然後顯示一條消息給用戶時，我需要中止後保存過程。

我發現了一種顯示消息的方法，但沒有找到拒絕後保存的方法。

到目前爲止，這裏就是我所做的

add_action("pre_post_update", "checkPost"); 
function checkPost($post_ID) { 
     $post = get_post($post_ID); 

     $postContent = $post->post_content; 

     if (wp_is_post_revision($post_ID )) 
      return; 

     if(preg_match("/bad string/", $postContent) == 1) { 

      // 
      // cancel post save 
      // 

      // then 
      add_filter("redirect_post_location", "my_redirect_post_location_filter", 99); 
     } 
} 

function my_redirect_post_location_filter($location) { 
     remove_filter('redirect_post_location', __FUNCTION__, 99); 
     $location = add_query_arg('message', 99, $location); 
     return $location; 
} 

add_filter('post_updated_messages', 'my_post_updated_messages_filter'); 
function my_post_updated_messages_filter($messages) { 
     $messages['post'][99] = 'Publish not allowed'; 
     return $messages; 
} 

Answer 1

希望這有助於您檢查帖子內容

function to_err_is_human($post_id) { 
    // If this is just a revision, don't check 
    if (wp_is_post_revision($post_id)) 
     return; 
    $post_content = wp_unslash(!empty($_REQUEST['content']) ? $_REQUEST['content'] : $post_data['content']); 
     if ($post_content=="abc") 
     { add_filter("redirect_post_location", "my_redirect_post_location_filter", 99);} 
} 
add_action('save_post', 'to_err_is_human'); 
function my_redirect_post_location_filter($location) { 
     remove_filter('redirect_post_location', __FUNCTION__, 99); 
     $location = add_query_arg('message', 99, $location); 
     return $location; 
} 

add_filter('post_updated_messages', 'my_post_updated_messages_filter'); 
function my_post_updated_messages_filter($messages) { 
     $messages['post'][99] = 'Publish not allowed'; 
     return $messages; 
}