Article.php

<?php
App::uses('AppModel', 'Model');
/**
 * Article Model
 *
 * @property Comment $Comment
 */
class Article extends AppModel {

/**
 * Validation rules
 *
 * @var array
 */
	public $validate = array(
		'title' => array(
			'notEmpty' => array(
				'rule' => array('notEmpty'),
			),
		),
	);

/**
 * hasMany associations
 *
 * @var array
 */
	public $hasMany = array(
		'Comment' => array(
			'className' => 'Management.Comment',
			'foreignKey' => 'article_id',
			'dependent' => false,
			'conditions' => '',
			'fields' => '',
			'order' => '',
			'limit' => '',
			'offset' => '',
			'exclusive' => '',
			'finderQuery' => '',
			'counterQuery' => ''
		)
	);


}

ArticlesController.php

<?php
App::uses('AppController', 'Controller');
/**
 * Articles Controller
 *
 */
class ArticlesController extends AppController {

	public function index() {
		$this->autoRender = false;
		$res = $this->Article->find('all', [
			'contain' => ['Comment']
		]);
		debug($res);
		debug($this->Article->getDataSource()->getLog());
	}
}

database.php

<?php
/**
 * In this file you set up your database connection details.
 *
 * @package       cake
 * @subpackage    cake.config
 */
class DATABASE_CONFIG {


	// MySQL
	var $default = array(
		'datasource' => 'Database/Mysql',
		'persistent' => false,
		'host' => 'localhost',
		'login' => 'root',
		'password' => '',
		'database' => 'cake_debug',
		'prefix' => 'pre_',
		'encoding' => 'utf8'
	);

}

schema.sql

CREATE TABLE `pre_articles` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(255) NOT NULL,
  `body` text,
  `created` datetime DEFAULT NULL,
  `modified` datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
);
CREATE TABLE `pre_comments` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `article_id` int(11) NOT NULL,
  `body` text,
  `created` datetime DEFAULT NULL,
  `modified` datetime DEFAULT NULL,
  PRIMARY KEY (`id`)
);