Wrapper for ORM models to add view logic on top

view_model.php

<?php defined('SYSPATH') or die('No direct script access.');

class View_Model
{
	public static function factory(Model $model)
	{
		// Get the associated View_ name (ex: View_Model_User)
		$class = 'View_'.get_class($model);

		if (class_exists($class))
		{
			$reflection = new ReflectionClass($class);
			$instance = $reflection->newInstance($model);
		}
		else
		{
			$instance = new View_Model($model);
		}

		return $instance;
	}

	protected $_model;

	public function __construct(Model $model)
	{
		$this->_model = $model;
	}

	public function __get($key)
	{
		return method_exists($this, $key)
			? $this->{$key}()
			: $this->_model->{$key};
	}

	public function __call($method, $args)
	{
		return call_user_func_array(array($this->_model, $method), $args);
	}

	public function __isset($column)
	{
		return ($this->_model->__isset($column) OR
			((property_exists($this, $column) OR method_exists($this, $column)) AND
				$this->{$column} !== NULL));
	}

	public function save()
	{
		throw new Kohana_Exception('Model in read-only mode');
	}

	public function delete()
	{
		throw new Kohana_Exception('Model in read-only mode');
	}
}