いつもググってる気がするのでシリーズ。
require 'rubygems'
require 'active_record'
ActiveRecord::Base.establish_connection(
:adapter => 'postgresql',
:host => 'localhost',
:username => 'komagata',
:password => '',
:database => 'foo',
:port => 5432
)
class Post < ActiveRecord::Base
end
puts Post.first.name