Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
NTU CCSP 2012Fall - Node.js #3 - Mongoose
Search
Sponsored
·
Your Podcast. Everywhere. Effortlessly.
Share. Educate. Inspire. Entertain. You do you. We'll handle the rest.
→
Steven Su
October 31, 2012
Programming
2
720
NTU CCSP 2012Fall - Node.js #3 - Mongoose
Data Layer / Mongodb / Mongoose
Steven Su
October 31, 2012
Tweet
Share
More Decks by Steven Su
See All by Steven Su
JSDC.TW 2013 Node.js佈署心得
xpsteven
14
1.2k
NTU CCSP 2012Fall - Mobile Web入門 回首網頁開發
xpsteven
3
290
NTU CCSP 2012Fall - Facebook
xpsteven
1
210
NTU CCSP 2012Fall - Node.js #2.1 - Simple File Host Service
xpsteven
2
450
NTU CCSP 2012Fall - Node.js #2 - express.js
xpsteven
3
570
Y! Open Hack 2012 Taiwan
xpsteven
0
180
NTU CCSP 2012Fall - Node.js #2 - Advanced Javascript and Node.js
xpsteven
1
540
Other Decks in Programming
See All in Programming
16年目のピクシブ百科事典を支える最新の技術基盤 / The Modern Tech Stack Powering Pixiv Encyclopedia in its 16th Year
ahuglajbclajep
5
1k
Automatic Grammar Agreementと Markdown Extended Attributes について
kishikawakatsumi
0
200
なぜSQLはAIぽく見えるのか/why does SQL look AI like
florets1
0
470
Data-Centric Kaggle
isax1015
2
780
Grafana:建立系統全知視角的捷徑
blueswen
0
330
AI時代の認知負荷との向き合い方
optfit
0
160
dchart: charts from deck markup
ajstarks
3
990
AI Schema Enrichment for your Oracle AI Database
thatjeffsmith
0
300
CSC307 Lecture 04
javiergs
PRO
0
660
AIによるイベントストーミング図からのコード生成 / AI-powered code generation from Event Storming diagrams
nrslib
2
1.9k
Amazon Bedrockを活用したRAGの品質管理パイプライン構築
tosuri13
5
740
AgentCoreとHuman in the Loop
har1101
5
240
Featured
See All Featured
職位にかかわらず全員がリーダーシップを発揮するチーム作り / Building a team where everyone can demonstrate leadership regardless of position
madoxten
57
50k
What the history of the web can teach us about the future of AI
inesmontani
PRO
1
430
Crafting Experiences
bethany
1
49
Visualization
eitanlees
150
17k
The Mindset for Success: Future Career Progression
greggifford
PRO
0
240
Jamie Indigo - Trashchat’s Guide to Black Boxes: Technical SEO Tactics for LLMs
techseoconnect
PRO
0
62
Building the Perfect Custom Keyboard
takai
2
690
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
uxyall
0
170
Chasing Engaging Ingredients in Design
codingconduct
0
110
We Analyzed 250 Million AI Search Results: Here's What I Found
joshbly
1
730
Jess Joyce - The Pitfalls of Following Frameworks
techseoconnect
PRO
1
66
Agile that works and the tools we love
rasmusluckow
331
21k
Transcript
資料層:Mongoose NTU CCSP 2012Fall
目標 • 安裝mongodb • 使用mongo shell • 簡易CRUD
環境 • Windows 7 • Sublime Text 2 • Node.js
0.8.x • Express.js 3.0 • Mongoose.js
MONGODB INSTALL
Step 0: 下載mongodb
Step 0: 下載mongodb
Step 1: 解壓縮移動到C 並命名為mongodb
Step 2: 設定環境
Step 3: 啟動mongod
Step 4: 進入mongo shell
MONGO SHELL
MongoDB • 是一種NoSQL • 不需要資料綱要(Schema-Free) • 允許巢狀資料 • 沒有JOIN 沒有TRANS
• 簡單說就是一個存放JSON的資料庫 所以才 會跟Node.js很合
MongoDB練習 • http://try.mongodb.org/
FIRST LOOK OF MONGOOSE
Step -1: 請先安裝mongoose npm install mongoose -g
Step 0: 產生綱要 1. 產生schema 2. 產生model instance.save(fn(err){}) 儲存 Model.find()
搜尋
Step 0: 產生綱要
Step 1: 更新與刪除 • Model.remove() 刪除所有文件 • instance.remove() 刪除一個文件
Step 2: 綱要進階 • 常用type String, Number, Date, ObjectId •
Array用法 • Embed Docs => Array嵌入物件
CRUD BY EXPRESS+MONGOOSE
Step 0: 建立express專案
Step 1: 修改package.json
Step 2: 安裝套件
Step3: 編輯models/User.js
Step 3: 編輯 app.js • mongoose.connect和 mongoose.createConnection是不 同的 • 前者是模組等級
後者是獨立連線 • 沒有指明連線的model會嘗試使用 並等待模組等級連線建立
Step 4: Create • 編輯route/user.js • 注意callback的例外
Step 4: Create • 編輯view/index.ejs
Step 4.5: 來試試看吧
Step 5: Read • Read包含兩種 • 讀取集合 • 讀取單一物件
Step 6: Update
Step 6: Update • Callback hell很痛苦 • 銀幕在寬都不夠
Step 8: step.js解決cb hell • 解決callback hell • Err可以很帥氣的throw
遺珠之憾 • Population http://mongoosejs.com/docs/populate.html • Middleware http://mongoosejs.com/docs/middleware.html • Advanced Query
http://mongoosejs.com/docs/queries.html • SQL to Mongo mapping http://www.mongodb.org/display/DOCS/SQL+to+Mongo+Map ping+Chart • Step.js https://github.com/creationix/step