Android - 加密和解密(Android - encryption and decryption)

 您正在用户控制器的索引方法中设置变量$companies ，但在视图中引用$company 。 
 
 如果您在视图中引用$companies ，它应该可以工作。 
 
 您可以使用contain指定要加载的关联数据。 
 
$companies = $this->Companies
        ->find('all', [
            'order' => ['Companies.name' => 'ASC'],
            'contain' => ['Users'],
        ]
);
 
 您可以阅读有关在文档中检索数据的更多信息 
 
 我认为问题在于您如何尝试访问对象属性。 尝试这样的事情： 
 
foreach ($companies as $company) {
    $company->users; // each company has many users

    // if you want to loop over each company's users
    foreach ($company->users as $user) {
        //etc
    }
}

You are setting the variable $companies in the index method of your users controller, but referencing $company in the view.
 
It should work if you reference the $companies in the view.
 
You can use contain to specify what associated data is loaded. 
 
$companies = $this->Companies
        ->find('all', [
            'order' => ['Companies.name' => 'ASC'],
            'contain' => ['Users'],
        ]
);
 
You can read more about retrieving data in the docs
 
I think that the problem is with how you are trying to access to object properties. Try something like this:
 
foreach ($companies as $company) {
    $company->users; // each company has many users

    // if you want to loop over each company's users
    foreach ($company->users as $user) {
        //etc
    }
}