kohana验证规则rules

一般都可以在API中找到

http://www.kofans.org/3.2/guide/api

Valid

• Valid::alpha
• Valid::alpha_dash
• Valid::alpha_numeric
• Valid::color
• Valid::credit_card
• Valid::date
• Valid::decimal
• Valid::digit
• Valid::email
• Valid::email_domain
• Valid::equals
• Valid::exact_length
• Valid::ip
• Valid::luhn
• Valid::matches
• Valid::max_length
• Valid::min_length
• Valid::not_empty
• Valid::numeric
• Valid::phone
• Valid::range
• Valid::regex
• Valid::url

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

class Useradmin_Model_User_Identity extends ORM {

	protected $_belongs_to = array(
		'user' => array()
	);

	/**
	 * Rules for the user identity.
	 * @return array Rules
	 */
	public function rules ()
	{
		return array(
			'user_id' => array(
				array('not_empty'), 
				array('numeric')
			), 
			'provider' => array(
				array('not_empty'), 
				array('max_length', array(':value', 255) )
			), 
			'identity' => array(
				array('not_empty'), 
				array('max_length', array(':value', 255) ), 
				array(array($this, 'unique_identity'), array(':validation', ':field') ) 
			)
		);
	}

	/**
	 * Triggers error if identity exists.
	 * Validation callback.
	 *
	 * @param   Validation  Validation object
	 * @param   string    field name
	 * @return  void
	 */
	public function unique_identity (Validation $validation, $field)
	{
		$identity_exists = (bool) DB::select(array('COUNT("*")', 'total_count'))
			->from($this->_table_name)
			->where('identity', '=', $validation['identity'])
			->and_where('provider', '=', $validation['provider'])
			->execute($this->_db)
			->get('total_count');
		if ($identity_exists)
		{
			$validation->error($field, 'identity_available', array($validation[$field]));
		}
	}
}