simple transaction service

base_service.php

<?php

/* 
 * ###############
 * # W A R N I N G
 * ###############
 * 
 * This implementation is thought of madness.
 * So DO NOT use this for basic process of service at your applications.
 */

class BaseService {

	public function __get($name) {

		$class = Inflector::classify($name);
		if ($name === 'Transaction') {
			return $this->$class = ClassRegistry::init('TransactionService');
		}

		return $this->$class = ClassRegistry::init($class);

	}

	public function simpleTransaction($lambda) {
		$this->Transaction->begin();
		$result = $lambda($this);
		if (!$result) {
			$this->Transaction->rollback();
		} else {
			$this->Transaction->commit();
		}
		return $result;
	}

	public function transaction($datasources = null) {
		return $this->Transaction->setDataSources($datasources);
	}

}

service.php

<?php

/* 
 * ###############
 * # W A R N I N G
 * ###############
 * 
 * This implementation is thought of madness.
 * So DO NOT use this for basic process of service at your applications.
 */

App::import('Model', 'BaseService');

/*
 * Service model class.
 * This model provides interfaces for features that affects database with create, update and delete functionalities.
 * Any controllers or shells(tasks) should use Service methods to make consistency.
 */

class Service extends BaseService {
	/*
	public function registerUser($data) {
		$this->Transaction->begin();
		$result = $this->User->signup($data);
		if (!$result) {
			$this->Transaction->rollback();
		} else {
			$this->Transaction->commit();
		}
		return $result;
	}
	*/
	public function registerUser($data) {
		return $this->simpleTransaction(function($self) {
			return $self->User->signup($data);
		});
	}

}