0

这只是一个简单的检查，如果集合不存在，则创建它并预填充数据。这在我的本地机器上工作正常，并且取决于在 db.collection 调用上设置的“严格”标志，如果 coll 不存在，它将引发错误。然而，它在 Heroku 上不起作用，有人知道为什么吗？

mongo.Db.connect(mongoUri, function (err, db) {
  if (!err)
  {
    console.log("Connected to Database")
    db.collection('collectionName', {strict:true}, function(er, collection) {
      if (!er)
      {
        console.log("Collection opened, ready for use!")
      } else {
        console.log("DATA DOES NOT EXIST, PREPOPULATING")
        populateDB();
      }
    });
  } else {
    console.log("Error connecting to database: " + err)
  }
});

包.json

    {
    "name": "appname",
    "description": "Application",
    "version": "0.0.1",
    "private": true,
    "dependencies": {
        "express": "3.x",
        "mongodb": "1.3.x",
        "socket.io": "0.9.10"
    },
    "engines": {
        "node": "0.8.4",
        "npm": "1.1.49"
    }
}
4

1 回答 1

0

Nevermind - I updated Node to version 0.10.x in the package.json file and that seemed to fix it.

于 2013-10-03T19:19:02.980 回答