grails - 如何检测 Controller 已被 g :include tag lib? 调用

Question

为了发送适当的响应，我需要检测是否已通过经典 HTTP GET 请求、AJAX 请求或 g:include 请求 Controller 操作标签库.

例如，考虑以下片段代码:

class CommunityController {
  def show = {
    def users = getUsers()
    if (/* WHAT IS THE CODE HERE??? */)  //g:include request => render 'show' template only
      render template:'show', model=[users]
    else if (request.xhr)  //Ajax => we send JSON content
      render users as JSON
    else //Classic request => we render 'show' GSP page
      [users]
  }
}

...我怎样才能检测到该操作已通过 g:include 标记库调用？

谢谢。

Answer 1

你可以这样测试:

import org.springframework.web.util.WebUtils

if (request.getAttribute(WebUtils.INCLUDE_REQUEST_URI_ATTRIBUTE)) {
    // request was included
}