getting start with DataMapper

gistfile1.txt

#!/usr/bin/env ruby
# simple connect to database with DataMapper

require "rubygems"
require "data_mapper"

DataMapper.setup(
  :default,
  "sqlite3:///tmp/dm-core.sqlite3"
)

class Post
  include DataMapper::Resource
  property :id,           Integer,    :serial => true
  property :name,         String,     :key    => true
  property :notes,        Text,       :lazy   => false
  property :create_at,    DateTime
end

Post.auto_migrate!


post = Post.new
post.name = "shelling"
post.notes = "hello world"
post.create_at = DateTime.now
post.save