I am trying to implement the login system from the Cake php blog tutorial into my own system but cannot seem to get it working. All attempts made to login are met with the error I set in UserController->login().

我试图实现登录系统从蛋糕php博客教程到我自己的系统，但似乎无法让它工作。所有登录尝试都会遇到我在UserController->LOGIN()中设置的错误。

Heres some of my code, I can post more if needed.

以下是我的一些代码，如果需要，我可以发布更多。

UsersController.php

UsersController.php

namespace App\Controller;

use App\Controller\AppController;
use Cake\Event\Event;

class UsersController extends AppController
{

    public function beforeFilter(Event $event)
    {
        parent::beforeFilter($event);
        $this->Auth->allow(['add','logout']);
    }

    public function login() 
    {
        if($this->request->is('post')){
            $user = $this->Auth->identify();
            if($user){
                $this->Auth->setUser($user);
                return $this->redirect($this->Auth->redirectUrl());
            }
        }
        $this->Flash->error(__('Invalid username or password, try again.'));
    }
}

AppController.php

AppController.php

class AppController extends Controller
{
    public function initialize()
    {
        parent::initialize();

        $this->loadComponent('RequestHandler');
        $this->loadComponent('Flash');
        $this->loadComponent('Auth', [
            'authenticate' => [
                'Form' => [
                    'fields' => [
                        'username' => 'username',
                        'password' => 'password'
                    ]
                ]
            ],
            'loginRedirect' => [
                'controller' => 'Projects',
                'action' => 'index'
            ],
            'logoutRedirect' => [
                'controller' => 'Pages',
                'action' => 'display',
                'home'
            ]
        ]);
    }

    public function beforeFilter(Event $event)
    {
        $this->Auth->allow(['index', 'view', 'edit', 'display']);
    }
}

login.ctp

Login.ctp

<div class="users form">
<?= $this->Flash->render('auth') ?>
<?= $this->Form->create() ?>
    <fieldset>
        <legend><?= __('Please enter your username and password') ?></legend>
        <?= $this->Form->input('username') ?>
        <?= $this->Form->input('password') ?>
    </fieldset>
<?= $this->Form->button(__('Login')); ?>
<?= $this->Form->end() ?>
</div>

User.php

User.php

class User extends Entity
{

    protected $_accessible = [
        '*' => true,
        'id' => false,
    ];

    protected function _setPassword($password)
    {
        return (new DefaultPasswordHasher)->hash($password);
    }

}

UsersTable.php

UsersTable.php

class UsersTable extends Table
{

    public function initialize(array $config)
    {
        parent::initialize($config);

        $this->table('users');
        $this->displayField('username');
        $this->primaryKey('id');

        $this->addBehavior('Timestamp');

        $this->hasMany('Projects', [
            'foreignKey' => 'user_id'
        ]);
        $this->hasMany('TicketsComments', [
            'foreignKey' => 'user_id'
        ]);
        $this->belongsToMany('Projects', [
            'foreignKey' => 'user_id',
            'targetForeignKey' => 'project_id',
            'joinTable' => 'projects_users'
        ]);
        $this->belongsToMany('Tickets', [
            'foreignKey' => 'user_id',
            'targetForeignKey' => 'ticket_id',
            'joinTable' => 'tickets_users'
        ]);
    }

    public function validationDefault(Validator $validator)
    {
        $validator
            ->integer('id')
            ->allowEmpty('id', 'create');

        $validator
            ->requirePresence('username', 'create')
            ->notEmpty('username', 'A username is reuired.')
            ->add('username', 'unique', ['rule' => 'validateUnique', 'provider' => 'table']);

        $validator
            ->email('email')
            ->requirePresence('email', 'create')
            ->notEmpty('email')
            ->add('email', 'unique', ['rule' => 'validateUnique', 'provider' => 'table']);

        $validator
            ->requirePresence('password', 'create')
            ->notEmpty('password', 'A password is required.');

        $validator
            ->notEmpty('role', 'A role is required.')
            ->add('role', 'inList', [
                'rule' => ['inList',['Admin', 'User']],
                'message' => 'Please enter a valid role.'
            ]);

        return $validator;
    }

    public function buildRules(RulesChecker $rules)
    {
        $rules->add($rules->isUnique(['username']));
        $rules->add($rules->isUnique(['email']));
        return $rules;
    }
}

I am pretty baffled as to what I have done wrong. I can confirm in the database that the passwords are actually hashing. I also read somewhere that passwords should be VARCHAR(50) in the database and this is the case with mine so it shouldn't be that.

我对自己做错了什么感到很困惑。我可以在数据库中确认密码实际上是散列的。我还在某个地方读到数据库中的密码应该是VARCHAR(50)，我的密码就是这样，所以不应该是这样的。

Thanks in advance

提前谢谢你

So my passwords was too small, according to a helpful answer from ndm default password hasher needs varchar(60), the stuff I had read about varchar(50) could have been for blowfish which I don't use.

所以我的密码太小了，根据NDM默认密码hasher Need varchar(60)的一个有用的答案，我读到的关于varchar(50)的东西可能是我不使用的河豚的。

The syntax for easily changing the varcahr limit is: ALTER TABLE users CHANGE password password VARCHAR(255);

轻松更改varcahr限制的语法为：ALTER TABLE USERS CHANGE PASSWORD PASSWORD VARCHAR(255)；

edit: I cannot mark my own answer as solved but the problem is solved.

编辑：我无法将我自己的答案标记为已解决，但问题已解决。

This will probably not work right away, but is the form being POSTed?
You need to start debugging, change your function to this, to check:

这可能不会马上起作用，但是表格已经发布了吗？您需要开始调试，将您的函数更改为以下内容，以检查：

public function login() 
    {
        if($this->request->is('post')){
        echo "YES, we have posted information!<br />"; var_dump($this->request);
            $user = $this->Auth->identify();
        echo "<br /><br />Let's have a look at $user = $this->Auth->identify();"; var_dump($this->request); 
            if($user){
                $this->Auth->setUser($user);
                return $this->redirect($this->Auth->redirectUrl());
            }
        }
        $this->Flash->error(__('Invalid username or password, try again.'));
    }