<?php

/**
 * UserIdentity represents the data needed to identity a user.
 * It contains the authentication method that checks if the provided
 * data can identity the user.
 */
class UserIdentity extends CUserIdentity
{
	/**
	 * Authenticates a user.
	 * The example implementation makes sure if the username and password
	 * are both 'demo'.
	 * In practical applications, this should be changed to authenticate
	 * against some persistent user identity storage (e.g. database).
	 * @return boolean whether authentication succeeds.
	 */
	
	private $_id; //对应useradmin_id
	
	public function authenticate()
	{
		$record = Useradmin::model()->findByAttributes(array('username' => $this->username, 'status' => 1));
		if ($record === null){
			$this->errorCode = self::ERROR_USERNAME_INVALID;
		}
		else if ($record->password !== md5($this->password)){
			$this->errorCode = self::ERROR_PASSWORD_INVALID;
		}
		else
		{
			$this->_id=$record->id;
			$this->setState('_id', $record->id);
		
			$this->setState('username', $record->username);
			$this->setState('password', $record->password);
			$this->errorCode = self::ERROR_NONE;
		}
		return !$this->errorCode;
	}
	
	public function getId()
	{
		return $this->_id;
	}	
}