I have did according to things mentioned in Yii BOOK on user mangement but i get blank page on Login
here is my UserIdentity
<?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
{
private $_id;
/*
Authenticating using User Model
*/
public function authenticate()
{
$user=User::model->findByAttributes(array('username'=>$this->username));
if($user==null)
{
$this->errorCode=self::ERROR_USERNAME_INVALID;
}
else
{
if($user->password!==$user->md5($this->password))
{
$this->errorCode=self::ERROR_USERNAME_INVALID;
}
else
{
$this->_id = $user->id;
}
}
return !$this->errorCode;
}
public function getId()
{
return $this->_id;
}
/**
* 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.
public function authenticate()
{
$users=array(
// username => password
'demo'=>'demo',
'admin'=>'admin',
);
if(!isset($users[$this->username]))
$this->errorCode=self::ERROR_USERNAME_INVALID;
else if($users[$this->username]!==$this->password)
$this->errorCode=self::ERROR_PASSWORD_INVALID;
else
$this->errorCode=self::ERROR_NONE;
return !$this->errorCode;
}*/
}
LoginForm.php in model direcoty
<?php
/**
* LoginForm class.
* LoginForm is the data structure for keeping
* user login form data. It is used by the 'login' action of 'SiteController'.
*/
class LoginForm extends CFormModel
{
public $username;
public $password;
public $rememberMe;
private $_identity;
/**
* Declares the validation rules.
* The rules state that username and password are required,
* and password needs to be authenticated.
*/
public function rules()
{
return array(
// username and password are required
array('username, password', 'required'),
// rememberMe needs to be a boolean
array('rememberMe', 'boolean'),
// password needs to be authenticated
array('password', 'authenticate'),
);
}
/**
* Declares attribute labels.
*/
public function attributeLabels()
{
return array(
'rememberMe'=>'Remember me next time',
);
}
/**
* Authenticates the password.
* This is the 'authenticate' validator as declared in rules().
public function authenticate($attribute,$params)
{
if(!$this->hasErrors())
{
$_identity=new UserIdentity($this->username,$this->password);
$_identity->authenticate();
switch($identity->errorCode)
{
case UserIdentity::ERROR_NONE:
$duration=$this->rememberMe ? 3600*24*30 : 0; //30 days
Yii::app()->user->login($identity,$duration);
break;
case UserIdentity::ERROR_USERNAME_INVALID:
$this->addError('username','Username is incorrect');
break;
default: //Useridentity :: ERROR_PASSWORD_INVALID
$this->addError('password','Password is incorrect');
break;
}
}
}
*/
/**
* Authenticates the password.
* This is the 'authenticate' validator as declared in rules().
*/
public function authenticate($attribute,$params)
{
if(!$this->hasErrors())
{
$this->_identity=new UserIdentity($this->username,$this->password);
if(!$this->_identity->authenticate())
$this->addError('password','Incorrect username or password.');
}
}
/**
* Logs in the user using the given username and password in the model.
* @return boolean whether login is successful
*/
public function login()
{
if($this->_identity===null)
{
$this->_identity=new UserIdentity($this->username,$this->password);
$this->_identity->authenticate();
}
if($this->_identity->errorCode===UserIdentity::ERROR_NONE)
{
$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days
Yii::app()->user->login($this->_identity,$duration);
return true;
}
else
return false;
}
}
Login.php in view folder
<?php
$this->pageTitle=Yii::app()->name . ' - Login';
$this->breadcrumbs=array(
'Login',
);
?>
<h1>Login</h1>
<p>Please fill out the following form with your login credentials:</p>
<div class="form">
<?php $form=$this->beginWidget('CActiveForm', array(
'id'=>'login-form',
'enableClientValidation'=>true,
'clientOptions'=>array(
'validateOnSubmit'=>true,
),
)); ?>
<p class="note">Fields with <span class="required">*</span> are required.</p>
<div class="row">
<?php echo $form->labelEx($model,'username'); ?>
<?php echo $form->textField($model,'username'); ?>
<?php echo $form->error($model,'username'); ?>
</div>
<div class="row">
<?php echo $form->labelEx($model,'password'); ?>
<?php echo $form->passwordField($model,'password'); ?>
<?php echo $form->error($model,'password'); ?>
<p class="hint">
Hint: You may login with <tt>demo/demo</tt> or <tt>admin/admin</tt>.
</p>
</div>
<div class="row rememberMe">
<?php echo $form->checkBox($model,'rememberMe'); ?>
<?php echo $form->label($model,'rememberMe'); ?>
<?php echo $form->error($model,'rememberMe'); ?>
</div>
<div class="row buttons">
<?php echo CHtml::submitButton('Login'); ?>
</div>
<?php $this->endWidget(); ?>
</div><!-- form -->
Anything else needed?