mongoose 官方文档学习

Mongoose_tour_01

/**
 * Created by focusj on 14-6-20.
 */
var mongoose = require('mongoose');
var Schema = mongoose.Schema;


mongoose.connect('mongodb://10.0.1.39:30000/TestGeo');

var db = mongoose.connection;

db.on('error', console.error.bind(console, 'connection error:'));
db.once('open', function callback() {
    console.log("mongodb connected");
});

var kittySchema = Schema({
    name: String
});

//methods
kittySchema.methods.speak = function () {
    var greeting = this.name
        ? "Meow name is " + this.name
        : "I don't have a name";
    console.log(greeting);
}

//statics
kittySchema.statics.findByName = function (name, callback) {
    this.find({name: name}, callback);
}

//index 有量中级别:
//1.fields level
//2.schema level
//
//默认的是启动系统的时候创建索引, 创建索引的过程是非常消耗资源的,
//会造成数据库系统暂时的性能颠簸, 这边给出了两种关闭的方式.
//
//animalSchema.set('autoIndex', false);
//new Schema({..}, { autoIndex: false });
var personSchema = Schema({
    id: {type: String, index: true},
    name: String,
    score: Number,
    address: String
});
personSchema.index({score: 1, score: -1});

//Virtual
personSchema.virtual("toString").get(function(name) {
    
});



var Kitten = mongoose.model('Kitten', kittySchema);

//var fluffy = new Kitten({ name: 'Silence' });
//fluffy.save(function (err, fluffy) {
//    if (err) return console.error(err);
//    fluffy.speak();
//});


Kitten.findByName("Silence", function (err, data) {
    if (!err)
        console.log(data)
});