如何在Yii中创建具有两个用户级别的登录模块

我想让一个登录页面与2个不同的用户级别，医生"家长如何在Yii中实现....

下面列出了两个表....对于两个用户，电子邮件地址都是用户名。

CREATE TABLE Doctordoctor_email VARCHAR (50),password VARCHAR (50),doctor_name VARCHAR (50),doctor_phone INT (10),speciality VARCHAR (200),主键( doctor_email)

);

CREATE TABLE Parentparent_email VARCHAR (50),parent_name VARCHAR (50),password VARCHAR (20),parent_address VARCHAR (100),parent_phone INT (10),主键( parent_email)）;

这是UserIdentity.php

中的authenticate()函数

public function authenticate() {

    $record1 = Doctor::model()->findByAttributes(array('doctor_email' => $this->username));
    $record2 = Parents::model()->findByAttributes(array('parent_email' => $this->username));
    if ($record1 !== NULL) {
        if ($record1->password == $this->password) {
            $this->errorCode = self::ERROR_NONE;
        } else {
            $this->errorCode = self::ERROR_PASSWORD_INVALID;
        }
    } else if ($record2 !== NULL) {
        if ($record2->password == $this->password) {
            $this->errorCode = self::ERROR_NONE;
        } else {
            $this->errorCode = self::ERROR_PASSWORD_INVALID;
        }
    }
    return !$this->errorCode;
}

这是我的login()函数在models/loginfo .php

公共函数login() {

    if ($this->_identity === null) {
        $this->_identity = new UserIdentity($this->username, $this->password);
        $this->_identity->authenticate();
        if ($this->_identity->record1 !== NULL)
            $this->isDoc = TRUE;
        else if ($this->_identity->record2 !== NULL)
            $this->isDoc = FALSE;
    }
    if ($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;
}

这是sitecontoller。php中的actionLogin()

公共功能actionLogin() {$model = new LoginForm;

    // if it is ajax validation request
    if (isset($_POST['ajax']) && $_POST['ajax'] === 'login-form') {
        echo CActiveForm::validate($model);
        Yii::app()->end();
    }
    // collect user input data
    if (isset($_POST['LoginForm'])) {
        $model->attributes = $_POST['LoginForm'];

        if ($model->validate() && $model->login()) {

            if ($model->isDoc) {
                $this->redirect(array('/doctor/index'));
            } elseif ($model->isDoc == FALSE) {
                $this->redirect(array('/parents/index'));
            }
        }
    }
    // display the login form
    $this->render('login', array('model' => $model));
}

当两个用户登录时，重定向到'/parents/index'。谁能告诉我我做错了什么吗?或者有任何想法.....

if ($this->_identity->record1 !== NULL)
            $this->isDoc = TRUE;
        else if ($this->_identity->record2 !== NULL)
            $this->isDoc = FALSE;

class UserIdentity extends CUserIdentity
{
public $record1;
public $record2;
}