你不能在字段中指定一个虚拟字段，你需要在没有字段选项的情况下调用它，所以它会把它和结果一起带来...你可能想读一下examples in the cookbook
调用所有字段是一个选项，另一个选项是调用字段选项中的字段，如下所示

$this->Student->find('all', array('fields' => array(
    $this->student->virtualFields['full_name'].'AS Student__full_name',
    'Student.fname','Student.lname')
));

在你的app_model. php中放置一个方法怎么样：

/**
 * combine virtual fields with fields values of find()
 * USAGE:
 * $this->Model->find('all', array('fields' => $this->Model->virtualFields('full_name')));
 * @param array $virtualFields to include
 */
public function virtualFields($fields = array()) {
    $res = array();
    foreach ((array)$fields as $field) {
        //TODO: if key numeric => value sql!
        //TODO: allow combined/other models via Model.field syntax
        $sql = $this->virtualFields[$field];
        $res[] = $sql.' AS '.$this->alias.'__'.$field;
    }
    return $res;
}

然后像这样使用它：

$this->Model->find('all', array('fields' => $this->Model->virtualFields('full_name')))

））;
或这样：

$fields = $this->Model->virtualFields('full_name');
$fields = am($fields, 'status', 'created');
$this->Model->find('all', array('fields' => $fields));

））;

在CookBook上：http://book.cakephp.org/2.0/en/models/virtual-fields.html
它说你可以这样使用它：
产品型号：

public $virtualFields = array(
'name' => 'CONCAT(User.first_name, " ", User.last_name)');

控制器或视图：

$results = $this->User->find('first');

结果：

array(
    [User] 
        [first_name] => 'Mark',
        [last_name] => 'Story',
        [name] => 'Mark Story',
        //more fields.
    )

因此，您可以像这样使用它：

$this->set('list_fields', $this->User->find('list', 
array('fields' => array('first_name', 'last_name', 'name'), 
'recursive' => -1, 'condition' => ...)));