diff --git a/models/ContactForm.php b/models/ContactForm.php
deleted file mode 100644
index f001d21..0000000
--- a/models/ContactForm.php
+++ /dev/null
@@ -1,65 +0,0 @@
-<?php
-
-namespace app\models;
-
-use Yii;
-use yii\base\Model;
-
-/**
- * ContactForm is the model behind the contact form.
- */
-class ContactForm extends Model
-{
-    public $name;
-    public $email;
-    public $subject;
-    public $body;
-    public $verifyCode;
-
-
-    /**
-     * @return array the validation rules.
-     */
-    public function rules()
-    {
-        return [
-            // name, email, subject and body are required
-            [['name', 'email', 'subject', 'body'], 'required'],
-            // email has to be a valid email address
-            ['email', 'email'],
-            // verifyCode needs to be entered correctly
-            ['verifyCode', 'captcha'],
-        ];
-    }
-
-    /**
-     * @return array customized attribute labels
-     */
-    public function attributeLabels()
-    {
-        return [
-            'verifyCode' => 'Verification Code',
-        ];
-    }
-
-    /**
-     * Sends an email to the specified email address using the information collected by this model.
-     * @param string $email the target email address
-     * @return bool whether the model passes validation
-     */
-    public function contact($email)
-    {
-        if ($this->validate()) {
-            Yii::$app->mailer->compose()
-                ->setTo($email)
-                ->setFrom([Yii::$app->params['senderEmail'] => Yii::$app->params['senderName']])
-                ->setReplyTo([$this->email => $this->name])
-                ->setSubject($this->subject)
-                ->setTextBody($this->body)
-                ->send();
-
-            return true;
-        }
-        return false;
-    }
-}
diff --git a/models/LoginForm.php b/models/LoginForm.php
deleted file mode 100644
index dce15cc..0000000
--- a/models/LoginForm.php
+++ /dev/null
@@ -1,81 +0,0 @@
-<?php
-
-namespace app\models;
-
-use Yii;
-use yii\base\Model;
-
-/**
- * LoginForm is the model behind the login form.
- *
- * @property-read User|null $user
- *
- */
-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.');
-            }
-        }
-    }
-
-    /**
-     * 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;
-    }
-}
diff --git a/models/User.php b/models/User.php
deleted file mode 100644
index 2e3fb25..0000000
--- a/models/User.php
+++ /dev/null
@@ -1,104 +0,0 @@
-<?php
-
-namespace app\models;
-
-class User extends \yii\base\BaseObject implements \yii\web\IdentityInterface
-{
-    public $id;
-    public $username;
-    public $password;
-    public $authKey;
-    public $accessToken;
-
-    private static $users = [
-        '100' => [
-            'id' => '100',
-            'username' => 'admin',
-            'password' => 'admin',
-            'authKey' => 'test100key',
-            'accessToken' => '100-token',
-        ],
-        '101' => [
-            'id' => '101',
-            'username' => 'demo',
-            'password' => 'demo',
-            'authKey' => 'test101key',
-            'accessToken' => '101-token',
-        ],
-    ];
-
-
-    /**
-     * {@inheritdoc}
-     */
-    public static function findIdentity($id)
-    {
-        return isset(self::$users[$id]) ? new static(self::$users[$id]) : null;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public static function findIdentityByAccessToken($token, $type = null)
-    {
-        foreach (self::$users as $user) {
-            if ($user['accessToken'] === $token) {
-                return new static($user);
-            }
-        }
-
-        return null;
-    }
-
-    /**
-     * Finds user by username
-     *
-     * @param string $username
-     * @return static|null
-     */
-    public static function findByUsername($username)
-    {
-        foreach (self::$users as $user) {
-            if (strcasecmp($user['username'], $username) === 0) {
-                return new static($user);
-            }
-        }
-
-        return null;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getId()
-    {
-        return $this->id;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getAuthKey()
-    {
-        return $this->authKey;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function validateAuthKey($authKey)
-    {
-        return $this->authKey === $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;
-    }
-}