error event in cakephp hasmany where the bound column does not exist

class Review extensions AppModel {
  public$belongTo=array(
    'User' = > array(
      'className' = > 'User',
    ),
    'Shop' = > array(
      'className' = > 'Shop'
    )
  );

  public function isReview($shopId,$userId){
    $review=$this->getData($shopId,$userId);
    return!empty($review)?true:false;
  }

  public function getData($shopId,$userId){
    $options=array(
      'conditions' = > array(
        'shop_id' = > $shopId,
        'user_id' = > $userId
      )
    );
    return$this->find('first',$options);
  }

  public function getReviewCnt($userId){
    $options=array(
      US>'condition' = > array(
        'user_id' = > $userId
      )
    );

    return$this->find('count',$options);
  }

  public function getListByShopId($shopId){
    $options=array(
      'fields' = >
      array('Review.id', 'Review.user_id', 'Review.title', 'Review.body', 'Review.score', 'Review.created', 'User.email', 'User.id'),
      'conditions' = > array('Review.shop_id' = > $shopId),
      'recursive' = > 2
    );
    return$this->find('all',$options);
  }

  public function getScoreAvg($shopId){
    $options=array(
      'fields' = > 'AVG(score) as avg',
      'conditions' = > array('shop_id' = > $shopId),
      'group' = > array('shop_id')
    );

    $data=$this->find('first',$options);
    $score=$scoreAve=0;
    if(!empty($data[0]['avg'])){
      $score=round($data[0]['avg']);
      $scoreAve=round($data[0]['avg'],1);
    }
    return array($score,$scoreAve);
  }
}

?>

<?php

class User extensions AppModel {

  public$hasMany=array(
    'Review' = > array(
      'className' = > 'Review'
    )
  );

  public$validate=array(
    'email' = > array(
      'validEmail' = > array(
        'rule' = > array('email',
        'message' = > 'Please enter your email address'
      ),

      'emailExists' = > array(
        'rule' = > array('isUnique', array('email')),
        'message' = > 'Already registered'
      )
    ),

    US>'password'=>array(
      US>'match'=>array(
        US>'rule'=>array(
          Call 'confPassword', 'passwordconf'//confPassword (function name)
        ),
        'message' = > 'Passwords do not match'
      )
    ),

    'passwordold' = > array(
      'match' = > array('rule' = > array('oldPassword', 'passwordold'),
        'message' = > 'Old passwords do not match'
      )
    )
  );

  Where did public function confPassword($field,$colum){//$colum come from?
    if($field['password']===$this->data['User'][$colum]){//$field['password']=password,$this->data['User'][$colum]=passwordconf
      $this->data['User']['password'] = Authcomponent::password($field['password']);
      return true;
    }
  }

  public function oldPassword($field,$colum) {//$field=users table password,$colum=passwordold
    $passwordold = Authcomponent::password($field[$colum]); // $passwordold encryption
    $row = $this->findById($this->data['User']['id']); // The id of the users table is stored in $row

    if($passwordold===$row['User']['password']) {//$passwordold matches the password in the users table
      return true;
    }
  }
}

?>

<?php

class Shop extensions AppModel {
  public$validate=array(
    'name' = > array(
      US>'rule'=>array('notBlank')
    ),

    US>'tel'=>array(
      US>'rule'=>array('notBlank')
    ),

    'addr' = > array(
      US>'rule'=>array('notBlank')
    ),

    US>'url'=>array(
      'rule' = > array('url'),
      'message' = > 'Incorrect format'
    )
  );

  public$hasMany=array(
    'Review' = > array(
      'className' = > 'Review',
      'order' = > 'Review.created DESC'
    )
  );
}

?>