Peter Solnica solnic

6 steps to set up a rails development environment on OS X:

install Apple Command Line Tools
install homebrew[1]: /usr/bin/ruby -e "$(/usr/bin/curl -fksSL https://raw.github.com/mxcl/homebrew/master/Library/Contributions/install_homebrew.rb)"
install rvm: bash -s stable < <(curl -s https://raw.github.com/wayneeseguin/rvm/master/binscripts/rvm-installer)
install ruby rvm install 1.9.3
install rails

	SELECT DISTINCT "song_id", "name", "tag_name"
	FROM (
	SELECT * FROM (
	SELECT "id" AS "song_id", "name" FROM "songs"
	) AS "left" NATURAL JOIN (
	SELECT * FROM "song_tags" AS "left"
	NATURAL JOIN (
	SELECT "id" AS "tag_id", "name" AS "tag_name" FROM "tags"
	) AS "right"
	) AS "right"

	/* generated */
	SELECT "user_id", "username", "id", "street" FROM (SELECT "id" AS "user_id", "username" FROM "users") AS "left" NATURAL JOIN "addresses" AS "right"

	/* inner join alternative */
	SELECT users.id AS user_id, username, addresses.id, street FROM users INNER JOIN addresses ON users.id = addresses.user_id

	class User
	include DataMapper::Model

	attribute :id, Integer
	attribute :name, String
	attribute :age, Integer
	end

	DataMapper.generate_mapper_for(User) do
	key :id

	$ history \| awk {'print $2, $3, $4'} \| sort \| uniq -c \| sort -k1 -rn \| head -n 30
	610 git status
	568 git commit -m
	491 git add .
	252 git push origin
	176 bundle
	138 rails s
	128 ls
	120 git commit --amend
	114 git reset --hard

	1.9.3p327 :011 > Benchmark.bm { \|x\| x.report { User.all.each { \|u\| u.city } } }
	user system total real
	4.320000 0.010000 4.330000 ( 4.344362)

	DATE=2012-06-01
	for version in `find $rvm_path/rubies/ -mindepth 1 -maxdepth 1 -type d -not -newermt $DATE \| cut -d / -f 7`; do rvm remove $version; done

	def route_name
	Rails.application.routes.recognize(request) { \|route, _\| route.name }.flatten.last.name.to_sym
	end