Security::validatepassword Not Working help!

I have this example proyect, I try to use generatePasswordHash,validatePassword but I have no luck I read Incorrect username or password.. the problem is validatepassword always return false, I test pass input and pass stored are used
<?php

namespace app\models;

use Yii;
use yii\web\IdentityInterface;

/**

  • This is the model class for table “usuarios”.

  • @property int $id

  • @property string $nombre_usuario

  • @property int $rol

  • @property int $estado

  • @property string $pass

  • @property string $auth_key

  • @property string $access_token
    /
    class User extends \yii\db\ActiveRecord implements IdentityInterface
    {
    /
    *

    • {@inheritdoc}
      */
      public static function tableName()
      {
      return ‘usuarios’;
      }

    /**

    • {@inheritdoc}
      */
      public function rules()
      {
      return [
      [[‘nombre_usuario’, ‘rol’, ‘estado’, ‘pass’, ‘auth_key’, ‘access_token’], ‘required’],
      [[‘rol’, ‘estado’], ‘integer’],
      [[‘nombre_usuario’], ‘string’, ‘max’ => 55],
      [[‘pass’, ‘auth_key’, ‘access_token’], ‘string’, ‘max’ => 255],
      ];
      }

    /**

    • {@inheritdoc}
      */
      public function attributeLabels()
      {
      return [
      ‘id’ => ‘ID’,
      ‘nombre_usuario’ => ‘Nombre Usuario’,
      ‘rol’ => ‘Rol’,
      ‘estado’ => ‘Estado’,
      ‘pass’ => ‘Pass’,
      ‘auth_key’ => ‘Auth Key’,
      ‘access_token’ => ‘Access Token’,
      ];
      }

    /**

    • {@inheritdoc}
      */
      public static function findIdentity($id)
      {
      return self::findOne($id);
      }

    /**

    • {@inheritdoc}
      */
      public static function findIdentityByAccessToken($token, $type = null)
      {
      return self::find()->where([“access_token”=>$token])->one();
      }

    /**

    • Finds user by username
    • @param string $username
    • @return static|null
      */
      public static function findByUsername($username)
      {
      return self::findOne([“nombre_usuario”=>$username]);
      }

    /**

    • {@inheritdoc}
      */
      public function getId()
      {
      return $this->id;
      }

    /**

    • {@inheritdoc}
      */
      public function getAuthKey()
      {
      return $this->auth_key;
      }

    /**

    • {@inheritdoc}
      */
      public function validateAuthKey($authKey)
      {
      return $this->auth_key === $authKey;
      }

    /**

    • Validates password
    • @param string $password password to validate
    • @return bool if password provided is valid for current user
      */
      public function validatePassword($password)
      {
      return Yii::$app->security->validatePassword($password, $this->pass);
      }
      }
    <?php

namespace app\models;

use Yii;
use yii\base\Model;

/**

  • LoginForm is the model behind the login form.
  • @property User|null $user This property is read-only.

*/
class LoginForm extends Model
{
public $username;
public $password;
public $rememberMe = true;

private $_user =false;


/**
 * @return array the validation rules.
 */
public function rules()
{
    return [
        // username and password are both required
        [['username', 'password'], 'required'],
        // rememberMe must be a boolean value
        ['rememberMe', 'boolean'],
        // password is validated by validatePassword()
        ['password', 'validatePassword'],
    ];
}

/**
 * Validates the password.
 * This method serves as the inline validation for password.
 *
 * @param string $attribute the attribute currently being validated
 * @param array $params the additional name-value pairs given in the rule
 */
public function validatePassword($attribute, $params)
{
    if (!$this->hasErrors()) {
        $user = $this->getUser();

       /* if (!$user || !$user->validatePassword($this->password)) {
            $this->addError($attribute, 'Incorrect username or password.');
        }*/
        if (!$user) {
            $this->addError($attribute, 'Incorrect username.');
        } else {

            if (!$user->validatePassword($this->password)) {

                $this->addError($attribute, 'Incorrect password.');

            }
        }
    }
}

/**
 * Logs in a user using the provided username and password.
 * @return bool whether the user is logged in successfully
 */
public function login()
{
    if ($this->validate()) {
        return Yii::$app->user->login($this->getUser(), $this->rememberMe ? 3600*24*30 : 0);
    }
    return false;
}

/**
 * Finds user by [[username]]
 *
 * @return User|null
 */
public function getUser()
{
    if ($this->_user === false) {
        $this->_user = User::findByUsername($this->username);
    }

    return $this->_user;
}

}
<?php

/* @var $this yii\web\View /
/
@var $form yii\bootstrap\ActiveForm /
/
@var $model app\models\LoginForm */

use yii\helpers\Html;
use yii\bootstrap\ActiveForm;

$this->title = ‘Login’;
$this->params[‘breadcrumbs’][] = $this->title;
?>

<?= Html::encode($this->title) ?>

<p>Please fill out the following fields to login:</p>

<?php $form = ActiveForm::begin([
    'id' => 'login-form',
    'layout' => 'horizontal',
    'fieldConfig' => [
        'template' => "{label}\n<div class=\"col-lg-3\">{input}</div>\n<div class=\"col-lg-8\">{error}</div>",
        'labelOptions' => ['class' => 'col-lg-1 control-label'],
    ],
]); ?>

    <?= $form->field($model, 'username')->textInput(['autofocus' => true]) ?>

    <?= $form->field($model, 'password')->passwordInput() ?>

    <?= $form->field($model, 'rememberMe')->checkbox([
        'template' => "<div class=\"col-lg-offset-1 col-lg-3\">{input} {label}</div>\n<div class=\"col-lg-8\">{error}</div>",
    ]) ?>

    <div class="form-group">
        <div class="col-lg-offset-1 col-lg-11">
            <?= Html::submitButton('Login', ['class' => 'btn btn-primary', 'name' => 'login-button']) ?>
        </div>
    </div>

<?php ActiveForm::end(); ?>

<div class="col-lg-offset-1" style="color:#999;">
    You may login with <strong>admin/admin</strong> or <strong>demo/demo</strong>.<br>
    To modify the username/password, please check out the code <code>app\models\User::$users</code>.
</div>

DB