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common/models/LoginForm.php 2.59 KB
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  <?php
      namespace common\models;
      
      use artbox\core\models\User;
      use Yii;
      use yii\base\Model;
      
      /**
       * Login form
       */
      class LoginForm extends Model
      {
          public $username;
          public $password;
          public $rememberMe = true;
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          public $returnUrl;
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          private $_user;
          
          /**
           * @inheritdoc
           */
          public function rules()
          {
              return [
                  // username and password are both required
                  [
                      [
                          'username',
                          'password',
                      ],
                      'required',
                  ],
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                  [
                      [
                          'returnUrl',
                      ],
                      'string',
                  ],
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                  // 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);
              } else {
                  return false;
              }
          }
          
          /**
           * Finds user by [[username]]
           *
           * @return User|null
           */
          protected function getUser()
          {
              if ($this->_user === null) {
                  $this->_user = User::findByUsername($this->username);
              }
              
              return $this->_user;
          }
      }