Question

任何人都可以在c9.io中给我一个mongodb连接URL的例子吗？我想连接到他们当地的mongodb实例，我有mongod在后台运行。

以下是我正在尝试使用的内容：

#  explore the legend route
#    add to legend rather than replace
dyG %>%
  dyCallbacks(
    highlightCallback = sprintf(
      'function(e, x, pts, row) {

      // added to illustrate what is happening
      //   remove once satisfied with your code
      debugger;  

      var customLegend = %s


      // should get our htmlwidget
      var legendel = e.target.parentNode.parentNode
        .querySelectorAll(".dygraph-legend")[0];

      // should get our htmlwidget
      legendel.innerHTML = legendel.innerHTML + "<br>" + customLegend[row];
      }'
            ,# supply a vector or text that you would like
      jsonlite::toJSON(rep('something here',length(as.vector(presidents))))
    )
  )

它甚至没有记录，任何帮助都会非常感激。

Answer 1

我得到了这个工作我的逻辑有点偏离：p

function OpenDB(mongoUrl, callBack){
    var MongoClient = mongodb.MongoClient;
    //var url = 'mongodb://localhost:27017/my_database_name';
    var url = mongoUrl || "mongodb://" + process.env.IP + "/test";
    console.log(url.bgWhite.blue);
    // Use connect method to connect to the Server
    MongoClient.connect(url, function(err, db) {
        if(err){
           console.log(err);
        }
      console.log("Connected correctly to server");
      callBack(db);
      db.close();
    });
}

c9.io mongodb连接url示例

1 个答案: