<?php defined('SYSPATH') OR die('No direct access allowed.');

class User_Model extends ORM {

	protected $ignored_columns = array('confirm');

	public function validate(array & $array, $save = FALSE)
	{
		$array = Validation::factory($array)
			->pre_filter('trim')
			->add_rules('username','required', array($this, '_key_exists'), 'is_string')
			->add_rules('email', 'required', 'valid::email', array($this, '_key_exists'))
			->add_rules('password', 'required', 'alpha_numeric')
			->add_rules('confirm', 'matches[password]')
			->add_rules('hash', 'required', 'length[32]', 'alpha_numeric');

		return parent::validate($array, $save);
	}

	public function __set($key, $value)
	{
		if ($key === 'password')
		{
			$value = md5($value);
		}

		return parent::__set($key, $value);
	}

	public function _key_exists($username)
	{
		return (bool) ! ORM::factory('user', $username)->loaded;
	}

	public function unique_key($id) {

		if (empty($id) OR is_numeric($id))
		{
			return $this->primary_key;
		} elseif (valid::email($id)) {
			return 'email';
		} else {
			return 'username';
		}
	}

};