gistfile1.php

class Book extends ActiveRecordModel {
  static $belongs_to = array(
    array('publisher'),
    array('author', 'readonly' => true, 'select' => 'name', 'conditions' => "name != 'jax'"),
    array('another', 'class_name' => 'SomeModel')
  );

  static $has_many = array(
    array('revisions'),
    array('editors', 'through' => 'revisions')
  );
 
  static $has_one = array(
    array('something')
  );

  static $validates_length_of = array(
    array('title', 'within' => array(1, 5))
  );
}