Laravel 循环遍历关联数组然后保存到数据库

Question

我是初学者，目前正在学习 Vue js 和 Laravel。所以我想弄清楚如何通过 axios 创建一个 POST 请求，然后将多个条目插入到我的数据库中。

我有这个数组，例如：

{
  "comakers": [
    {
      "name": "Sample",
      "email": "sample@email.com"
    },
    {
      "name": "Test",
      "email": "test@email.com"
    }
  ]
}

然后在我的 laravel 控制器上我想做一个像这样的 foreach 循环

public function update(Request $request, $id)
{
    $data = $request->all();

    foreach ($data as $comaker){
        $nominate = new Nominate();
        $nominate->loan_application_id = $id;
        $nominate->comaker_name = $comaker->name;
        $nominate->comaker_email = $comaker->email;

        $nominate->save();
    }

}

但我收到一个错误“尝试获取非对象的属性'名称'”。有人可以给我一些关于如何实现这一目标的想法吗？

顺便说一句，我正在尝试使用控制器中的更新功能。基本上，我想（如果不存在则插入新的）或（当存在现有数据时进行编辑）。我在这里的做法是否正确？

（更新）

当我尝试获取 $data = $request->all(); 的值时，laravel dd 或 dump 会显示此信息

array:1 [
  "comakers" => array:2 [
    0 => array:2 [
      "name" => "Sample"
      "email" => "sample@email.com"
    ]
    1 => array:2 [
      "name" => "Test"
      "email" => "test@email.com"
    ]
  ]
]

Answer 1

我认为all() 不会返回一个对象数组，而是一个关联数组。因此，您可以尝试以下方法：

// Notice that you should use `json()` since the data is in json format
$data = $request->json()->all();

foreach ($data['comakers'] as $comaker) {
  $nominate = new Nominate();
  $nominate->loan_application_id = $id;
  $nominate->comaker_name = $comaker['name'];
  $nominate->comaker_email = $comaker['email'];

  $nominate->save();
}

当然，您也可以将结果转换为这样的对象：

foreach ($data['comakers'] as $item) {
  $comaker = (object) $item;
  $nominate = new Nominate($data);
  ...

我还建议您简单地打印出结果的内容，以查看它实际包含的内容，例如使用var_dump()：

var_dump($data);

Answer 2

我认为您对 Json 变量而不是其中的 comakers 对象进行了 foreach。

foreach ($data->comakers as $comaker) {
        $nominate = new Nominate();
        $nominate->loan_application_id = $id;
        $nominate->comaker_name = $comaker->name;
        $nominate->comaker_email = $comaker->email;

        $nominate->save();
}

Answer 3

当你尝试循环时忘记了comaker 键，你应该这样做

$data = $request->all();

foreach ($data['comakers'] as $comaker){
    $nominate = new Nominate();
    $nominate->loan_application_id = $id;
    $nominate->comaker_name = $comaker['name'];
    $nominate->comaker_email = $comaker['email'];

    $nominate->save();
}