.:] $this->php(beans) [:. « beef.b10g-2.0.0

.:] $this->php(beans) [:.

August 8th, 2007 – 13:40:20

When I am working in Java, I code in IntelliJ which has this nice little macro to create all my getters and setters for the Bean object that I am working on at that point in time. It is a huge time saver. I recently started a new project in PHP and found myself desiring the same functionality in my PHP IDE, which didn`t exist. After a little bit of research, I decided I could do one of two things, either hack together a little macro to do it for me, or just create some function that would do it dynamically, on the fly… Here is what I came up with, it is likely that this will end up as part of a bigger PHP Framework that I will work on when I have some spare time (notice how long it has been between blog entries to get a clue how much spare time I have had lately) that will be some port of the JavaBeans API for PHP… Anyhow, I hope you enjoy!

/**
 * Base PHPBeanFramework Object to handle Dynamic Bean Functions
 *
 * This class will handle dynamically "creating" your getters/setters for
 * Bean Properties, re-instantiating your ReflectionObject when an implementing
 * class is deserialized from Session or Stream (DB/File) and will also create
 * your dynamic __toString() implementation to dump the values of the
 * implementation object.
 *
 *
 * Changelog:
 * 		1.0		7/28/07		Initial Creation
 * 		1.1		7/30/07		Changed __toString() to use a local array for
 * 							$class->getProperties since it was blowing up
 * 							due to trying to reference a temporary array.
 *
 * @author 		Chris Schmidt 
 * @package 	PHPBeanFramework/core
 * @version 	1.1
 * @since 		1.0.0
 * @copyright 	Copyright © 2007 - Digital-Ritual LLC.
 * @todo 		Make __call smart enough to work with boolean values as well.
 * @todo 		Allow a decorator to be injected for __toString()
 */
abstract class AbstractDataObject extends Object {
	/**
	 * A instance of ReflectionClass to represent the implementation object
	 * for dynamic methods defined in this base class.
	 *
	 * @var ReflectionClass
	 */
	private $clazz;	

	public function __construct() {
		$this->clazz = new ReflectionClass($this);
	}

	/**
	 * Generates, on the fly, a dynamic getter/setter pair for public properties
	 * of the implementation class. Note that case-sensitivity is in force here
	 * so if you have the following implementation class
	 *
	 * class X extends AbstractDataObject {
	 * 		public $vAr;
	 *
	 * 		public function __construct() {
	 * 			parent::__construct();
	 * 			$this->$vAr = "YO!";
	 * 		}
	 * }
	 *
	 * $x = new X();
	 * print($x->getvAr());		// Prints YO!
	 * print($x->getVaR());		// Fails
	 *
	 * @param string $method
	 * @param array $arguments
	 * @return mixed
	 */
	public function __call( $method, $arguments ) {
		if ( String::startsWith($method, "get") || String::startsWith($method, "set") ) {
			$property = strtolower(substr($method,3, 1)).substr($method,4);
			if ( $this->clazz->hasProperty( $property ) && $this->clazz->getProperty($property)->isPublic() ) {
				if ( String::startsWith( $method, "get" )) {
					return $this->clazz->getProperty( $property )->getValue( $this );
				} else {
					$this->clazz->getProperty( $property )->setValue( $this, $arguments[0] );
					return true;
				}
			}
		}

		error_log( "No Such Method: ".get_class($this)."::".$method);
		return false;
	}

	/**
	 * Dumps out the properties and values for the implementation class.
	 *
	 * @return string
	 */
	public function __toString() {
		$out = "";
		$props = $this->clazz->getProperties();
		foreach ( $props as &$prop ) {
			if ( $prop->isPublic() ) {
				$out .= sprintf( "[%-20s] %80s: %s
", array( gettype($prop->getValue($this)),$prop->getName(), $prop->getValue( $this ) ) );
			}
		}
		return $out;
	}

	/**
	 * Override the wakeup function since for some reason ReflectionObjects do
	 * not serialize/deserialize correctly. When the implementation object is
	 * deserialized, this function will recreate the ReflectionObject for this
	 * class.
	 */
	public function __wakeup() { $this->clazz = new ReflectionObject($this); }
}
?>

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