BackendUser.php

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

    /**
     * {@inheritdoc}
     */
    public static function findIdentityByAccessToken($token, $type = null)
    {
        $result = static::findOne(['accessToke'=>$token]);
        return new static($result);
    }

    /**
     * Finds user by username
     *
     * @param string $username
     * @return static|null
     */
    public static function findByUsername($username)
    {
        $result = self::find()->where(['username'=>$username])->one();
        return new static($result);
    }

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

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

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

    /**
     * Validates password
     *
     * @param string $password password to validate
     * @return bool if password provided is valid for current user
     */
    public function validatePassword($password)
    {
        return $this->password == $password;
    }