对应第一篇文章api的编写

router.get('/api/tags/search/:list/:key/:page', function(req, res) {
    if(_.isEmpty(req.params.key)) {
      res.json({items:null});
    } else {
      var key = urlencode.decode(req.params.key);

      var page = parseInt(req.params.page);
      if(!page) page = 0;

      var filter = {};

      if(req.params.list != 'all')
        filter = {term: {list: req.params.list}};

      Tag.search({
        filtered: {
          query: {query_string: {query:key}},
          filter: filter
        }
      }, {from: page * 40, size: 40}, function (err, results) {
        var items = results ? results.hits.hits : [];
        var total = results ? results.hits.total : 0;

        res.json({items: items, total:total});
      });
    }
  });

search()方法不知道从哪里来的，这个方法接受了三个参数：

1、

filtered: {
          query: {query_string: {query:key}},
          filter: filter
        }

2、

{from: page * 40, size: 40}

3、

function (err, results) {
        var items = results ? results.hits.hits : [];
        var total = results ? results.hits.total : 0;

        res.json({items: items, total:total});
      }

静态方法中没有此方法；

此为问题