<?php 
/* $Id$ */
namespace MCMS\Model;
(defined('MCMS') && (basename(__FILE__) != basename($_SERVER['PHP_SELF']))) or die('ACCESS DENIED');

/**
 * Model base class
 *
 * Models cannot get additional fields by using $object->newfield = newval. a $object->newfield in a get context
 * will also fail. Each model has to implement the static method fieldInfo().
 * The returned value should be a array with the property names of the class as keys
 * and the value type description as value.
 *
 * The type description has to contain the type at least, but can contain addition options, separated by commas.
 * allowed types are:
 *
 * BASE
 * numeric:		serial(digits), int(digits), float, double, decimal(p,s)
 * char:		char(chars), text, longtext
 * binary:		binary(kbytes), blob
 * logic: boolean
 * date/time:	date, time, datetime, timestamp
 * other:		enum(comma-separated values), set(comma-separated values)
 *
 * EXTENDED
 * numeric:		objid, money, option
 * char:		email, url, username
 * binary:		image(kbytes)
 * logic:
 * date/time:
 * other:		objref
 *
 * Adding an [] after the type defines a list of values.
 *
 * Additional options:
 * null:	value can be null
 * primary:	part of the primary key
 * _(NAME):	property is part of key NAME
 * ro:		property is marked as read only
 *
 * @package MCMS
 * @subpackage Model
 * @author Stefan Daurer <sd@qdevzone.net>
 * @since 1.0.0.0
 */
abstract class Model extends \Mammut\StrictObject implements iModel {
	private $initalized = false;
	
	// universal getter method for all properties which start with [a-z]
	public function __call($name, $arguments) {
		if(preg_match('/get([A-Z][a-zA-Z0-9_]*)/', $name, $match)) {
			$pname = strtolower(substr($match[1], 0, 1)) . substr($match[1], 1);
			if(isset($this->$pname))
				return $this->$pname;
			else
				throw new InvalidArgumentException("no such method '{$name}' in " . __CLASS__);
		}
		else
			throw new InvalidArgumentException("no such method '{$name}' in " . __CLASS__);
	}

	/**
	 * this method should be called to mark this object as initialized
	 */
	public function initalize() {
		$this->initalized = true;
	}

	public function isInitalized() {
		return (boolean) $this->initalized;
	}

	public static function fieldInfo() {
		return array();
	}

	public static function fieldDBMapping() {
		$result = array();
		// should now work, as we support only php >= 5.3
		foreach(static::fieldInfo() as $field=>$info)
			$result[$field] = $field; // simple 1:1 mapping by default
		return $result;
	}
}