Php 使用电子邮件而不是用户名进行身份验证

我遵循了CakePHP的基本原理。如果我添加了一个用户，我就不能和他一起登录。具有输入的视图应该是正确的。 Background：用户拥有许多带有联接表的播客

---

Controller/userscocontroller.php

public function add() {
    if ($this->request->is('post')) {
        $this->User->create();
        if ($this->User->saveAssociated($this->request->data)) { //saveAssociatied() is described below
            $this->redirect(array('action' => 'index'));
        }

    }
    $podcasts = $this->User->Podcast->find('list');
    $this->set(compact('podcasts'));
}

public function login() {
    if ($this->request->is('post')) {
        if ($this->Auth->login()) {
            $this->redirect($this->Auth->redirect());
        }
    }
}

public $hasAndBelongsToMany = array(
    'Podcast' => array(
        'className' => 'Podcast',
        'joinTable' => 'podcasts_users',
        'foreignKey' => 'user_id',
        'associationForeignKey' => 'podcast_id',
        'unique' => false,
    )
);

//password encryption
public function beforeSave($options = array()) {
    if (isset($this->data[$this->alias]['password'])) {
        $this->data[$this->alias]['password'] = AuthComponent::password($this->data[$this->alias]['password']);
    }
    return true;
}

Model/User.php

public function add() {
    if ($this->request->is('post')) {
        $this->User->create();
        if ($this->User->saveAssociated($this->request->data)) { //saveAssociatied() is described below
            $this->redirect(array('action' => 'index'));
        }

    }
    $podcasts = $this->User->Podcast->find('list');
    $this->set(compact('podcasts'));
}

public function login() {
    if ($this->request->is('post')) {
        if ($this->Auth->login()) {
            $this->redirect($this->Auth->redirect());
        }
    }
}

public $hasAndBelongsToMany = array(
    'Podcast' => array(
        'className' => 'Podcast',
        'joinTable' => 'podcasts_users',
        'foreignKey' => 'user_id',
        'associationForeignKey' => 'podcast_id',
        'unique' => false,
    )
);

//password encryption
public function beforeSave($options = array()) {
    if (isset($this->data[$this->alias]['password'])) {
        $this->data[$this->alias]['password'] = AuthComponent::password($this->data[$this->alias]['password']);
    }
    return true;
}

---

AppModel.php（）

---

解决方案：我想通过电子邮件进行身份验证，我必须根据

因此，我的AppController.php如下所示：

public $components = array(
        'Session',
        'Auth' => array(
            'authenticate' => array(
                'Form' => array(
                    'fields' => array('username' => 'email')
                )
            ),
            'loginRedirect' => array('controller' => 'xxx', 'action' => 'index'),
            'logoutRedirect' => array('controller' => 'users', 'action' => 'login')
        )
    );

---

那么你到底想要什么？很显然，我想登录。