<?php

abstract class Libs_Table extends Zend_Db_Table_Abstract
{
	protected static $_loadedForms = array();
	const DEFAULT_FORM = 'Default';
	
	public function __construct($config = array())
	{
		$class    = explode('_', get_class($this));
		$rowClass = 'Object_' . substr(array_pop($class), 0, -1);
		if (!class_exists($rowClass)) {
			throw new Libs_Exception("Class $rowClass not found");
		}
		$config   = array_merge($config, array(self::ROW_CLASS => $rowClass));
		parent::__construct($config);
	}
	
	public function getForm($form = null)
	{
		$form = ucfirst(strtolower($form));
	
		if ($form == null) {
			$form = self::DEFAULT_FORM;
		}
	
		$className = "Form_" . ucfirst($this->_name) . '_' . $form;
	
		if (array_key_exists($className, self::$_loadedForms)) {
			return self::$_loadedForms[$className];
		}
	
		if (class_exists($className, true)) {
			self::$_loadedForms[$className] = new $className;
			return self::$_loadedForms[$className];
		} else {
			throw new Libs_Exception("Class $className not found");
		}
	}
	
	public function __call($meth, $args)
	{
		if (preg_match('|get(\w+)Form|', $meth, $matches)) {
			return $this->getForm($matches[1]);
		}
	}
}
?>