NodeJS Mongo Basic
Contents
Install in Mac OS X
Install with homebrew
It’s easy way to install mongodb
Basic Operation using mongo
mongo is client application to manipulate
Start mongodb
mongod --dbpath ./data
You need to make data directory. data is data space.
By executing this command, mongod process starts
Connect database
mongo
mongo is client command
Show database list
show dbs
Switch database
use mydb
mydb is database name.
Check db object
db
Check db object to connect successfully
Show collection list
collection is like table of database
That is, data collection name
show collections
Save data
Insert data into collection
db.mydata.save({name:'yoona', mail:'yoona@snsd.com',memo:'this is test'})
Show data
basic
db.mydata.find()
{ “_id” : ObjectId(“54cc31d54a29d4a4ab3307b4”), “name” : “yoona”, “mail” : “yoona@snsd.com”, “memo” : “this is test” }
where clause
db.mydata.find({name:'yoona'})
Regular expression
db.mydata.find({name:/oo/})
Add condition
db.mydata.find({name:/oo/, mail:'yoona@snsd.com'})
MongoDB nodejs
mongodb : MongoDB driver
Mongoose : Modeling tool library
With Express
package.json
"dependencies":{
"express": "3.2.6",
"jade": "*",
"mongoose": "3.x"
}
npm install(with Eclipse)
Point “package.json” -> Run As -> npm install
Before starting application, you need to start mongod program.
※ We need some steps to use mongoose in Mac OS X
This is great post about it.
Delete mongoose folder and npm install again
npm install