如何使用 cakephp hasMany 一次链接多个记录？

Question

我用谷歌搜索了很多，但似乎没有什么与我正在寻找的相似..

我要做的是使用多个 HTML 列表一次将一条记录“用户”与其他多条记录“卡片”链接起来。

表格是： 用户（ID、姓名、用户名） 卡片（id，user_id）

型号：

class User extends AppModel {
    public $name = 'User';
    public $hasMany = array('Card');}

class Card extends AppModel {    
    public $name = 'Card';
    public $belongsTo = array('User');}

用户edit.ctp视图

echo $this->Form->input('id');
echo $this->Form->input('Card', array('multiple'=>true));

我的控制器会是什么样子？目前它看起来像这样，但只保存“没有相关卡”的用户记录

if (!empty($this->data)) {
    foreach($this->data['User']['Card'] as $key => $item){
        $this->data['User']['Card'][$key] = array('id'=>$item, 'user_id'=>$this->data['User']['id']);
                        }
        if ($this->User->saveAll($this->data)) {
            //$this->User->Card->saveAll($this->data);
            $this->Session->setFlash(__('The user has been saved', true));
            $this->redirect(array('action' => 'index'));
        } else {
            $this->Session->setFlash(__('The user could not be saved. Please, try again.', true));
    }
}
if (empty($this->data)) {
    $this->data = $this->User->read(null, $id);
    $this->set('cards', $this->User->Card->find('list'));
}

$this->数据包含：

Array
(
    [User] => Array
    (
        [id] => 1
        [name] => Superman
        [status] => 1
        [Card] => Array
        (
            [0] => Array
            (
                [id] => 11402130001
                [user_id] => 1
            )
            [1] => Array
            (
                [id] => 11402130002
                [user_id] => 1
            )
            [2] => Array
            (
                [id] => 11402130003
                [user_id] => 1
            )
            [3] => Array
            (
                [id] => 11402130004
                [user_id] => 1
            )
        )
    )
)

Answer 1

您需要为您的卡片添加一个 user_id 条目，以便您的数据看起来像这样：

Array
(
    [User] => Array
        (
            [id] => 10
        )
    [Card] => Array
        (
            [0] => Array
                (
                [id] => 1
                [user_id] => 10
                )
            [1] => Array
                (
                [id] => 2
                [user_id] => 10
                )

        )
)

我会在 $this->data['Card] 数组上进行 foreach 循环：

foreach ($this->data['Card'] as &$card) {
  $card['user_id'] = $this->data['User']['id'];
}

然后您可以执行 saveAll。顺便说一句，应该删除 $this->User->Card->saveAll($this->data)。