我刚从 Derby 开始，然后开始集成 MongoDB 和 derby-auth。但是，我遇到了麻烦，无法弄清楚。以下代码返回其下方的堆栈跟踪。找出导致错误的原因非常困难。这是使用 derby -c new project 生成的新项目。我所知道的是它与这auth.store(store)条线有关。
更新：我example/在 derby-auth 中也遇到了这个问题，但仅限于我的第一个请求，所以我猜这与数据库连接有关。
http = require 'http'
path = require 'path'
express = require 'express'
gzippo = require 'gzippo'
derby = require 'derby'
app = require '../app'
serverError = require './serverError'
auth = require('derby-auth')
MongoStore = require('connect-mongo')(express)
## SERVER CONFIGURATION ##
expressApp = express()
server = http.createServer expressApp
derby.use(require 'racer-db-mongo')
derby.use(derby.logPlugin)
store = derby.createStore
listen: server
db:
type: 'Mongo'
uri: 'mongodb://localhost/admin'
module.exports = server
auth.store(store)
ONE_YEAR = 1000 * 60 * 60 * 24 * 365
root = path.dirname path.dirname __dirname
publicPath = path.join root, 'public'
# Authentication strategies (providers actually)
strategies =
facebook:
strategy: require('passport-facebook').Strategy
conf:
clientID: 'boo'
clientSecret: 'boo'
# Authentication optionss
options =
domain: (if process.env.NODE_ENV is 'production' then "http://www.mydomain.com" else "http://localhost:3000" )
expressApp
.use(express.favicon())
# Gzip static files and serve from memory
.use(gzippo.staticGzip publicPath, maxAge: ONE_YEAR)
# Gzip dynamically rendered content
.use(express.compress())
# Uncomment to add form data parsing support
.use(express.bodyParser())
.use(express.methodOverride())
# Uncomment and supply secret to add Derby session handling
# Derby session middleware creates req.session and socket.io sessions
.use(express.cookieParser())
.use(store.sessionMiddleware
secret: 'mooo'
cookie: {maxAge: ONE_YEAR}
store: new MongoStore({ url: 'mongodb://localhost/admin' })
)
# Adds req.getModel method
.use(store.modelMiddleware())
# Authentication
.use(auth.middleware(strategies, options))
# Creates an express middleware from the app's routes
.use(app.router())
.use(expressApp.router)
.use(serverError root)
## SERVER ONLY ROUTES ##
expressApp.all '*', (req) ->
throw "404: #{req.url}"
堆栈跟踪：
TypeError: Cannot read property '_at' of undefined
at Model.mixin.proto._createRef ($derbypath/node_modules/derby/node_modules/racer/lib/refs/index.js:158:20)
at Model.mixin.proto.ref ($derbypath/node_modules/derby/node_modules/racer/lib/refs/index.js:124:19)
at $derbypath/lib/app/index.js:18:11
at Object.fail ($derbypath/node_modules/derby/node_modules/racer/lib/descriptor/descriptor.Model.js:268:21)
at Object.module.exports.events.middleware.middleware.subscribe.add._res.fail ($derbypath/node_modules/derby/node_modules/racer/lib/pubSub/pubSub.Store.js:80:40)
at module.exports.events.init.store.eachContext.context.guardReadPath.context.guardReadPath ($derbypath/node_modules/derby/node_modules/racer/lib/accessControl/accessControl.Store.js:25:26)
at next ($derbypath/node_modules/derby/node_modules/racer/lib/middleware.js:7:26)
at guard ($derbypath/node_modules/derby/node_modules/racer/lib/accessControl/accessControl.Store.js:156:36)
at next ($derbypath/node_modules/derby/node_modules/racer/lib/middleware.js:7:26)
at run ($derbypath/node_modules/derby/node_modules/racer/lib/middleware.js:10:12)
at $derbypath/node_modules/derby/node_modules/racer/lib/pubSub/pubSub.Store.js:88:11
at next ($derbypath/node_modules/derby/node_modules/racer/lib/middleware.js:7:26)
at Object.run [as subscribe] ($derbypath/node_modules/derby/node_modules/racer/lib/middleware.js:10:12)
at module.exports.server._addSub ($derbypath/node_modules/derby/node_modules/racer/lib/descriptor/descriptor.Model.js:237:26)
at Object.Promise.on ($derbypath/node_modules/derby/node_modules/racer/lib/util/Promise.js:29:7)
at Model.module.exports.server._addSub ($derbypath/node_modules/derby/node_modules/racer/lib/descriptor/descriptor.Model.js:221:29)
at subscribe ($derbypath/node_modules/derby/node_modules/racer/lib/descriptor/descriptor.Model.js:267:9)
at Model.module.exports.proto.subscribe ($derbypath/node_modules/derby/node_modules/racer/lib/descriptor/descriptor.Model.js:106:7)
at $derbypath/lib/app/index.js:17:16
at onRoute ($derbypath/node_modules/derby/lib/derby.server.js:69:7)
at app.router ($derbypath/node_modules/derby/node_modules/tracks/lib/index.js:96:16)
at callbacks ($derbypath/node_modules/derby/node_modules/tracks/node_modules/express/lib/router/index.js:160:37)
at param ($derbypath/node_modules/derby/node_modules/tracks/node_modules/express/lib/router/index.js:134:11)
at param ($derbypath/node_modules/derby/node_modules/tracks/node_modules/express/lib/router/index.js:131:11)
at pass ($derbypath/node_modules/derby/node_modules/tracks/node_modules/express/lib/router/index.js:141:5)
at Router._dispatch ($derbypath/node_modules/derby/node_modules/tracks/node_modules/express/lib/router/index.js:169:5)
at dispatch ($derbypath/node_modules/derby/node_modules/tracks/lib/index.js:43:21)
at Object.middleware [as handle] ($derbypath/node_modules/derby/node_modules/tracks/lib/index.js:58:7)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at app.use.fn ($derbypath/node_modules/express/lib/application.js:121:9)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:127:23)
at pass ($derbypath/node_modules/express/lib/router/index.js:107:24)
at Router._dispatch ($derbypath/node_modules/express/lib/router/index.js:170:5)
at Object.router ($derbypath/node_modules/express/lib/router/index.js:33:10)
at Context.next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Context.actions.pass ($derbypath/node_modules/derby-auth/node_modules/passport/lib/passport/context/http/actions.js:77:8)
at SessionStrategy.authenticate ($derbypath/node_modules/derby-auth/node_modules/passport/lib/passport/strategies/session.js:52:10)
at attempt ($derbypath/node_modules/derby-auth/node_modules/passport/lib/passport/middleware/authenticate.js:243:16)
at Passport.authenticate ($derbypath/node_modules/derby-auth/node_modules/passport/lib/passport/middleware/authenticate.js:244:7)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Passport.initialize ($derbypath/node_modules/derby-auth/node_modules/passport/lib/passport/middleware/initialize.js:69:5)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Object.handle ($derbypath/node_modules/derby-auth/index.js:71:16)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Object.module.exports [as handle] ($derbypath/node_modules/derby-auth/node_modules/connect-flash/lib/flash.js:20:5)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Object.expressInit [as handle] ($derbypath/node_modules/express/lib/middleware.js:31:5)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Object.query [as handle] ($derbypath/node_modules/express/node_modules/connect/lib/middleware/query.js:44:5)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Function.app.handle ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:198:3)
at Object.app.use.fn [as handle] ($derbypath/node_modules/express/lib/application.js:117:11)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at Object.modelMiddleware [as handle] ($derbypath/node_modules/derby/node_modules/racer/lib/session/session.Store.js:119:5)
at next ($derbypath/node_modules/express/node_modules/connect/lib/proto.js:190:15)
at store.get.next ($derbypath/node_modules/derby/node_modules/racer/node_modules/connect/lib/middleware/session.js:313:9)
at $derbypath/node_modules/derby/node_modules/racer/node_modules/connect/lib/middleware/session.js:337:9
at sessStore.load.sessStore.get ($derbypath/node_modules/derby/node_modules/racer/lib/session/session.Store.js:262:11)
at process.startup.processNextTick.process._tickCallback (node.js:245:9)