cakephp 3关联模型数据的表单验证

// src/Model/Table/UsersTable.php

namespace App\Model\Table;

use Cake\ORM\Table;

class UsersTable extends Table
{
    public function initialize(array $config)
    {
        $this->hasOne('Profiles');
    }
}

// src/Controller/UsersController.php

namespace App\Controller;

use App\Model\Table\UsersTable;

class UsersController extends AppController
{
    public function add()
    {
        $user = $this->Users->newEntity($this->request->getData(), [
            'associated' => ['Profiles']
        ]);

        if ($this->request->is('post')) {
            if ($this->Users->save($user)) {
                // 保存成功
            } else {
                // 保存失败
            }
        }

        $this->set(compact('user'));
    }
}

// templates/Users/add.ctp

<?= $this->Form->create($user) ?>
<?= $this->Form->input('username') ?>
<?= $this->Form->input('password') ?>
<?= $this->Form->input('Profiles.email') ?>
<?= $this->Form->button(__('Submit')) ?>
<?= $this->Form->end() ?>