Seiya KONNO nulltask

Rails 3.2 on Heroku (cedar)

環境

ruby 1.9.2
rails 3.2.1

作成フロー

サバクラ両方で動く JavaScript の大規模開発を行うために

原文：Scaling Isomorphic Javascript Code (This is just for study, please contact me at tily05 atmark gmail.com if any problem.)

考えてみれば Model-View-Controller とか MVC ってよく聞くよね。実際どんなものか知ってる？抽象的に言うなら「オブジェクト情報の保持されるグラフィック・システム (つまり、ラスターではないグラフィック。ゲームとか) 上に構築された、表示系を中心としたアプリケーションにおいて、主要な機能どうしの関わりをうまく分離すること」とでも言おうか。もう少し深く考えを押し進めてみれば、これは当然、他のさまざまなアプリケーションにもあてはまる言葉 (bucket term ?) だ。

過去に多くの開発コミュニティが MVC による解決案を提供し、それによってよくあるユースケースにうまく対処し、地位を築くことができた。例をあげるなら、Ruby や Python コミュニティは Rails や Django を作り、MVC アーキテクチャを実現した。

Friendly URLs

By default, Rails applications build URLs based on the primary key -- the id column from the database. Imagine we have a Person model and associated controller. We have a person record for Bob Martin that has id number 6. The URL for his show page would be:

/people/6

But, for aesthetic or SEO purposes, we want Bob's name in the URL. The last segment, the 6 here, is called the "slug". Let's look at a few ways to implement better slugs.

Setup new Mac with OSX Lion from scratch

These commands are good as of 2011-07-27.

Install xcode 4

App store http://itunes.apple.com/us/app/xcode/id448457090?mt=12) The download/install takes awhile so start it first. When it finishes downloading you will still need to run it to complete installation.

	#!/bin/bash
	set -e # exit on error
	### README

	# * installs your desired ruby versions using rbenv
	# ** including openssl (needed by bundler)
	# ** including sqlite (probably needed for rails apps)
	#
	# Before you start:
	# * put ssh-keys in place

	var unref = require('./build/Release/unref.node').unref;
	var http = require('http');
	http.createServer(function(req,res){
	res.writeHead(200, {'Content-Type': 'text/plain'});
	res.end('Loop Counter='+unref()+'\n');
	}).listen(8080);

	cd ~
	sudo yum update
	sudo yum install java-1.7.0-openjdk.i686 -y

	wget https://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.19.9.tar.gz -O elasticsearch.tar.gz

	tar -xf elasticsearch.tar.gz
	rm elasticsearch.tar.gz
	mv elasticsearch-* elasticsearch
	sudo mv elasticsearch /usr/local/share

	%w!ubygems scissor/echonest pit open-uri tempfile!.each {\|g\| require g }

	Scissor.logger.level = Logger::DEBUG
	Scissor.echonest_api_key = Pit.get('echonest.com', :require => {
	'api_key' => 'your Echo Nest API key'
	})['api_key']

	infile, outfile = ARGV

	file = Tempfile.new(%w/amen .wav/)

	# ## Backbone model caching
	# This is a simple solution to the problem "how do I make less requests to
	# my server?".
	#
	# Whenever you need a model instance, this will check first if the same thing
	# has been fetched before, and gives you the same instance instead of fetching
	# the same data from the server again.
	#
	# Reusing the same instance also has the great side-effect of making your
	# model changeable from one part of your code, with your changes being available

	.DS_Store
	._*
	node_modules/