#JS, #MongoDB Cheat Sheet

scipt.js

/**
 * mongodb cheat sheet
 */

// create db
use tasks

// list dbs
show dbs

// create tasks collection and insert new task into collection
a = {val: 'test'};
db.tasks.save(a);

// find object with id eq to ...
db.tasks.find({'_id': "830957ae-4cb2-474b-aa48-306b5b62ada5"})

// update attribute on object with _id...
db.tasks.update({_id: "830957ae-4cb2-474b-aa48-306b5b62ada5"}, {$set: {'data.attributes.active': true}})

// find objects by nested property
db.tasks.find( { 'data.attributes.userId':"2" });

// number of results
db.tasks.find().length();

// date range lookup ?
db.tasks.find( { 'data.attributes.created': {$gte: ISODate("2015-05-22T14:56:29.000Z"), $lt: ISODate("2015-05-22T14:56:29.000Z")} })

// delete collection
db.tasks.drop();

// find task that fall under project with ID A or ID B
db.tasks.find({$or: [{'data.attributes.projectId': '12'}, {'data.attributes.projectId': '4564564'}]})