将数据保存到属于关系的2个表时，cakephp 3.x数据不保存

Question

我有两个表users和user_details，user_details我们之间有user_id和user hasOne user_detail字段user_detail belongs to user，我有以下我的视图文件中的代码

echo $this->Form->create($user);
echo $this->Form->input('name');
echo $this->Form->input('email');
echo $this->Form->input('user_detail.first_name');
echo $this->Form->input('user_detail.last_name');
echo $this->Form->button(__('Submit'))
echo $this->Form->end()

我的UsersController代码

public function add() {
    $user = $this->Users->newEntity();
    if ($this->request->is('post')) {
        $user = $this->Users->patchEntity($user, $this->request->data, [
            'associated' => ['UserDetails']
        ]);
        if ($this->Users->save($user)) {
            $this->Flash->success(__('The user has been saved.'));
            return $this->redirect(['action' => 'index']);
        } else {
            $this->Flash->error(__('The user could not be saved. Please, try again.'));
        }
    }
    $this->set(compact('user'));
    $this->set('_serialize', ['user']);
}

如果我在补丁输入后的print_r（$ user）比我得到的数据

App\Model\Entity\User Object
(
    [name] => User1
    [email] => user1@user2.com
    [user_detail] => Array
        (
            [first_name] => user1
            [last_name] => last naem
        )

        [[new]] => 1
        [[accessible]] => Array
        (
            [*] => 1
        )

        [[dirty]] => Array
        (
            [name] => 1
            [email] => 1
            [user_detail] => 1
        )

        [[original]] => Array
        (
        )

        [[virtual]] => Array
        (
        )

        [[errors]] => Array
        (
        )

        [[repository]] => Users
)

这是我的用户模型我删除了验证规则

    <?php
        namespace App\Model\Table;
        use App\Model\Entity\User;
        use Cake\ORM\Query;
        use Cake\ORM\RulesChecker;
        use Cake\ORM\Table;
        use Cake\Validation\Validator;

        /**
         * Users Model
         *
         * @property \Cake\ORM\Association\HasMany $UserDetails
         */
        class UsersTable extends Table
        {

            /**
            * Initialize method
            * @param array $config The configuration for the Table.
            * @return void
            */
        public function initialize(array $config)
        {
            parent::initialize($config);

            $this->table('users');
            $this->displayField('id');
            $this->primaryKey('id');

            $this->addBehavior('Timestamp');

            $this->hasMany('UserDetails', [
                'foreignKey' => 'user_id'
            ]);
        }


        }
    ?>

这是我删除验证规则的用户详细信息模型

<?php
    namespace App\Model\Table;
    use App\Model\Entity\UserDetail;
    use Cake\ORM\Query;
    use Cake\ORM\RulesChecker;
    use Cake\ORM\Table;
    use Cake\Validation\Validator;

    /**
     * UserDetails Model
     *
     * @property \Cake\ORM\Association\BelongsTo $Users
     */
    class UserDetailsTable extends Table
    {

    /**
     * Initialize method
     * @param array $config The configuration for the Table.
     * @return void
     */
    public function initialize(array $config)
    {
        parent::initialize($config);

        $this->table('user_details');
        $this->displayField('id');
        $this->primaryKey('id');

        $this->addBehavior('Timestamp');

        $this->belongsTo('Users', [
            'foreignKey' => 'user_id',
            'joinType' => 'INNER'
        ]);
    }


    public function buildRules(RulesChecker $rules)
    {
        return $rules;
    }
}

但仅在user表中的数据保存不在user_detail表中，不知道问题是什么。