cakephp 3关联模型数据的表单验证

Question

我需要帮助来验证相关的模型数据。我有一个包含用户数据(UsersTable)的表单，其中包含来自Model Companies (Users hasMany Companies)的其他字段。

我的表单视图如下所示：

echo $this->Form->create($contentData);
  echo $this->Form->control('User.person_name');
  echo $this->Form->control('User.email');
  echo $this->Form->control('User.phone');
  echo $this->Form->control('Companies.0.company_name'); 
  //I try Companies.company_name too
  echo $this->Form->control('Companies.0.nip');

控制器中的操作如下所示：

$userTable = TableRegistry::get('Users');
$contentData = $userTable->newEntity(null, ['associated' => ['Companies']]);

if ($this->request->is(['post', 'put'])) {

    $formData = $this->request->getData();

    $contentData = $userTable->newEntity($this->request->getData(),
        ['validate' => true, 'associated' => ['Companies']]);

    pr($contentData->getErrors());
    die();

}

不幸的是，除CompaniesTable之外，调试从UsersTable验证返回错误。

你知道我哪里错了吗？