Question

我需要以下输出的代码。我尝试了somany时间但未能找到。这是我想要的输出格式

{
name: "Jan",
ds10: 0,
ds9: 0,
ds8: 0,
ds7: 0,
ds6: 0,
ds5: 0,
ds4: 0,
ds3: 0,
ds2: 0,
ds1: 0
},

这是一个代码，用于查找2004年至2013年间的月份数。 ds1到ds10的发生是两年的差异。如果我们增加年份，“ds”范围就会根据这个差异而来。那是

ds1: corresponding to 2004
ds2: corresponding to 2005
ds3: corresponding to 2006

这只是1月份的一个例子。

我写了这样的代码。

app.get('/stats-by-time', function(req, res){
  var year    =  (req.query["year"]) ? req.query["year"] : "";
  var year2     =  (req.query["year2"]) ? req.query["year2"] : "";
  var family    =  (req.query["family"]) ? req.query["family"] : "";
  var month     =  (req.query["month"]) ? req.query["month"] : "";
  var eventDate     =  (req.query["eventDate"]) ? req.query["eventDate"] : "";
  var errFlag   =   1;
  var errObj    =   '';
  var filter    =  (req.query["filter"]) ? req.query["filter"] : "";
  //var filter =  req.query["filter"] || {};
  try {
    filter = (filter != '') ? JSON.parse(filter) : {};

    } catch(err) {
      errObj = err;
      errFlag = 0;
    }
  var callback = req.query["callback"] || '';
  var yearvalues = {};
  yearvalues["year"] = year;    
  if(year !="year" && year2 != ''){

    var objyears = { $and: [ { "year" : { $gte: year } }, { "year": { $lte: year2 } } , filter ]  }
    collection.aggregate(

      { $match  : objyears},
      { $group : {
        _id : '$month',
        //month : '$month',
        count : { $sum : 1 },

      }},

      { $sort : {_id: 1}},
      function(err, results) {
        var outputArray = [];
        for(var j in results) { 
          var obj1 = {};
          var objyear = results[j];
          obj1["name"] = objyear['_id'];
          //obj1["ds"] = ""+ objyear['count'] +"";

          obj1["ds"] = objyear['count'];
          var diff = year2 - year;
          console.log("difference",diff);

          outputArray.push(obj1);

        } 
        console.log("results",outputArray);
        res.writeHead(200, {'Content-Type': 'application/json'});
        if (callback != '') {
          res.end(callback + '(' + JSON.stringify({success: true, rows: outputArray}) + ')');

        } else {
            res.end(JSON.stringify({success: true, rows: outputArray}));
        }
      });   
  } else {
  res.end(JSON.stringify({success: false, error:{msg:"Year2 must be passed"}}));
  }
});

每月指定的月份

0 个答案: