ActiveRecord example

active_record_example.rb

require "rubygems"
require "active_record"

#Change this to reflect your database settings
ActiveRecord::Base.establish_connection (
  :adapter => "mysql",
  :host => "localhost",
  :username => "root",
  :password => "password",
  :database => "some_database")

#Now define your classes from the database as always
class User < ActiveRecord::Base
  #Si la tabla se llama "users", la va a reconocer automaticamente
  #Si la tabla se llama de otra manera:
  #set_table_name 'uSeRs'
end

#Recorrer todos los registros de la tabla 'users' e imprimir el campo nombre para cada una:
User.all.each do |user|
  puts user.name
end

#Crear un nuevo usuario
User.create(:name => "Rodrigo", :age => 26)