javascript - 当前上下文中不存在名称 'content'

Question

我收到此错误，我做错了什么？

` 使用系统； 使用 System.Collections.Generic； 使用 System.Linq； 使用系统.Web； 使用 System.Web.Mvc； 使用 Umbraco.Web.WebApi；

namespace Umbraco.Course.Controllers
{
[MemberAuthorize(AllowType = "IntranetUser")]
public class LikesController : UmbracoApiController
{
    [System.Web.Http.HttpGet]
    public int LikeStatus(int id)
    {
        var contentService = Services.ContentService;
        var memberService = Services.MemberService;
        var relationService = Services.RelationService;

        var member = memberService.GetById(Members.GetCurrentMemberId());

        var post = contentService.GetById(id);

        if (!relationService.AreRelated(content, member, "likes"))
            relationService.Relate(post, member, "likes");

        var likes = relationService.GetByParent(post, "likes").Count();

            post.SetValue("likes", likes);

            contentService.PublishWithStatus(post);
            return likes;

        }
    }
  }`

Answer 1

if (!relationService.AreRelated(content, member, "likes"))

变量内容未定义。