Openshift

Question

我正在尝试使用以下代码连接到 mongodb：

var restify = require('restify');
var mongojs = require('mongojs');

var ip_addr = process.env.OPENSHIFT_NODEJS_IP || '127.0.0.1';
var port    =  process.env.OPENSHIFT_NODEJS_PORT || 8080;

console.log('ip_addr: ' + ip_addr + ' port ' + port);

var server = restify.createServer({name: 'myproject'});
server.use(restify.queryParser());
server.use(restify.bodyParser());
server.use(restify.CORS());

server.listen(port, ip_addr, function(){
              console.log(server.name + ' listening at url ' + server.url);
              });

var connectionString = '127.0.0.1:27017/myproject';

if(process.env.OPENSHIFT_MONGODB_DB_PASSWORD){
    connectionString = process.env.OPENSHIFT_MONGODB_DB_USERNAME + ':' +
    process.env.OPENSHIFT_MONGODB_DB_PASSWORD + '@' +
    process.env.OPENSHIFT_MONGODB_DB_HOST + ':' +
    process.env.OPENSHIFT_MONGODB_DB_PORT + '/' +
    process.env.OPENSHIFT_APP_NAME;
}

console.log('~~ connectionString: '+connectionString);

var db = mongojs(connectionString, ['accounts']);
var accounts = db.collection('accounts');
console.log('~~ db: '+ db + ' accounts:' + accounts);

var ACNT_PATH = '/accounts';

// get all records
server.get({path: ACNT_PATH, version:'0.0.1'}, findAllAccounts);

// defining call backs
function findAllAccounts(req, res, next){
    res.setHeader('Access-Control-Allow-Origin', '*');
    console.log('~~ Before firing query to accounts');

    db.accounts.find(function(err, docs){

                      if(docs){
                     console.log('About to return docs');
                      res.send(200, docs);
                      return next();
                      }

                     console.log('about to return error');
                      return next(err);
                      });
}

它在这一行之前工作正常：console.log('~~ Before firing query to accounts');。之后它在浏览器中显示此错误：

{"code":"InternalError","message":"Object function Object() { [native code] } has no method 'assign'"}

有什么想法，这里有什么问题吗？

Answer 1

我通过在 app.js 文件顶部添加以下行解决了这个问题：

Object.assign = require('object-assign')

参考link：Object function Object() { [native code] } has no method 'assign' #120

Openshift - 连接到 mongodb 时出现内部错误

Openshift - InternalError while connecting to mongodb

mongodb

node.js

mongojs