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我試圖將一個對象保存到我的數據庫;我知道數據庫是活動的,因爲我已經通過用於更新它的相同連接讀取對象。調用Mongoose document.save()似乎不能保存?
saveAndReturnQuiz = (res, quiz) ->
quiz.save (err) ->
# At some point, started seeing empty object for err, rather than null
if not _.isEmpty err
switch err?.code
when 11000
sendError res, "Quiz title must be unique"
else
console.error "Unexpected error on save(): %j", err
sendError res, extractError err
return
console.log "Sending Quiz response: %j", quiz
res.send quiz
我看到的是對save()的調用失敗,但是傳遞了一個空的err對象。
這裏是我的架構:
# Defines the schema of data
# Exports three Mongoose Model objects: Question, Round, and Quiz
mongoose = require "mongoose"
Schema = mongoose.Schema
Question = new Schema
kind:
type: String
enum: [ "text" ]
text:
type: String
required: true
answer:
type: String
required: true
value: Number
{ strict: true }
Round = new Schema
kind:
type: String
required: true
enum: ["normal", "challenge", "wager"]
title:
type: String
required: true
questions: [Question]
{ strict: true }
Quiz = new Schema
title:
type: String
required: true
unique: true
created:
type: Date
default: -> new Date()
location: String
rounds: [Round]
{ strict: true }
module.exports =
Question: mongoose.model('Question', Question)
Round: mongoose.model('Round', Round)
Quiz: mongoose.model('Quiz', Quiz)
因此,也許我只是處理錯誤,這些嵌入元素?
有趣的是,我可以添加新的測驗對象數據庫,只是沒有更新現有的:
app.post "/api/quiz",
(req, res) ->
quiz = new Quiz req.body
saveAndReturnQuiz res, quiz
# Update an existing Quiz
app.put "/api/quiz/:id",
(req, res) ->
Quiz.findById req.params.id,
handleError res, (quiz) ->
_.extend quiz, req.body
console.log "Ready to save: %j", quiz
saveAndReturnQuiz res, quiz
進一步更新:當該模型沒有嵌套元素,更新似乎正常工作。正是在嵌套元素(Rounds,以及Rounds,Questions)中,事情失敗了。
我懷疑在設置我的模式時缺少某些東西,但我不確定接下來要檢查什麼。
在此先感謝您的幫助!