MongoSkin基本使用

MongoDBにアクセスできるドライバーMongoskinの基本使い方です。

/**
 * Mongoskin
 * https://github.com/kissjs/node-mongoskin
 * http://www.hacksparrow.com/mongoskin-tutorial-with-examples.html
 */
// ライブラリ参照
var mongo = require('mongoskin');
// DB接続
var db = mongo.db('192.168.11.1:27017/blog_db', {
    safe : false
});
// コレクション取得
var users = db.collection('users');
// user検索
users.find({
    "name" : {
        $regex : /user-[0-4]/i
    }
}).toArray(function(error, band) {
    for ( var i = 0; i < band.length; i++) {
        console.log("name" + i + "=" + band[i].name);
    }
});
var threads = db.collection('threads');
var thread = {
    "title" : "title-4",
    "content" : "this is title-4 content."
};
// データ追加
threads.insert(thread, function(error, resultArray) {
    console.log("inserted thread title=" + JSON.stringify(resultArray));
    threads.find({}).each(function(error, thread) {
        if (thread !== null)
            console.log("thread title=" + thread.title);
    });
    // データ更新
    threads.update({
        "title" : "title-4"
    }, {
        $set : {
            "content" : "new title-4 content."
        }
    }, function(error, result) {
        console.log("object is updated.");
        threads.findOne({
            "title" : "title-4"
        }, function(error, thread) {
            console.log("thread4 new content=" + thread.content);
        });
    });
});
// データ削除
threads.remove({
    "title" : "title-4"
}, function(error, result) {
    console.log("object is removed.");
});
// データ件数取得
threads.count({}, function(error, count) {
    console.log("threads.count=" + count);
});