MongoDB和MongoJS-无法让runCommand用于文本查询 [英] MongoDB and MongoJS - can't get runCommand to work for text queries

问题描述

我的目标是使用Node的MongoDB(2.4.4)文本命令.从命令行可以正常工作.基于此先前的SO问题:等同于mongo shell db .js 中的.collection.runCommand()，我尝试使用MongoJS(0.7.17)，但无法成功.这是代码:

My goal is to use MongoDB's (2.4.4) text command from Node. It works fine from the command line. Based on this previous SO issue: Equivalent to mongo shell db.collection.runCommand() in Node.js, I tried using MongoJS (0.7.17) but can't make it go. Here is the code:

mongojs = require('mongojs');
var products = mongojs('localhost:27017/mydb').collection('products');
products.runCommand('text', {search: 'a'}, function (err, docs) {
   ...
});

docs返回undefined，并且err为null.我可以执行常规功能，例如products.find()fine ...，也可以在MongoDB命令行上执行搜索.有谁知道该怎么做?

docs returns undefined and err is null. I can execute a normal function such as products.find() fine... and I can execute the search on the MongoDB command line. Anyone know how to make this go?

顺便说一句，这是文档包含在回调中的内容:

BTW, here is what docs contains in the callback:

{
    "queryDebugString": "||||||",
    "language": "english",
    "results": [],
    "stats": {
        "nscanned": 0,
        "nscannedObjects": 0,
        "n": 0,
        "nfound": 0,
        "timeMicros": 55
    },
    "ok": 1
}

顺便说一句，如果还有另一种方法可以使普通的本机驱动程序正常工作，那我很好.

BTW, if there's another approach to make this work with just the normal native driver, I'm fine with that.

推荐答案

使用本机驱动程序，可以从db对象运行以下命令:

Using the native driver I can run a command off of the db object as follows:

var MongoClient = require("mongodb").MongoClient;
MongoClient.connect(database, function (err, db) {
    if (!err) {
        db.command({ distinct: "Messages", key: "session" }, function (err, result) {
            //more code here
        });
    }
});

我注意到您正在从收集对象中运行命令，这可能是问题所在.

I noticed you are running the command off of the collection object, that might be the problem.

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