Question

我是 Laravel 的新手，当我尝试将数据数据保存到数据库时，我遇到了问题。这是我得到的错误

参数1传递给 Illuminate \ Database \ Eloquent \ Relations \ HasOneOrMany :: save（）必须是 Illuminate \ Database \ Eloquent \ Model的实例，给定的数组，调用 S：\文档\ samdyk \供应商\ laravel \框架的\ src \照亮\数据库\雄辩\关系\ HasOneOrMany.php 在第267行并定义

所以这是我的代码

public function editMyProfile(Request $request) {
        $user = Auth::user();

        dump($request->get('skills'));
       // dump($request->get('skills')[0]);
        dump($user->skills()->saveMany($request->get('skills')));
       return 1;
}

这是控制器功能

$request->get('skills')

所以这里是array:5 [ 0 => array:2 [ "skill_title" => "fghjghj" "knowledge_level" => "20" ] 1 => array:2 [ "skill_title" => "gjghjhgj" "knowledge_level" => "50" ] 2 => array:2 [ "skill_title" => "ghjhgjgfjh" "knowledge_level" => "80" ] 3 => array:2 [ "skill_title" => "hjkhgkkkhgjkjhkhjgk" "knowledge_level" => "53" ] 4 => array:2 [ "skill_title" => "jghjhgjhgj" "knowledge_level" => "57" ] ]数据

$post->comments()->saveMany([
    new App\Comment(['message' => 'A new comment.']),
    new App\Comment(['message' => 'Another comment.']),
]);

因此，您可以看到我尝试保存数组（这很明显）。然而，即使是laravel文档，我也看到了这一点 $ post = App \ Post :: find（1）;

{{1}}

为什么我的代码错了？

Answer 1

您需要将Skill个对象数组传递给saveMany()方法：

$skillModels = [];
foreach ($request->skills as $skill) {
    $skillsModels[] = new Skill($skill);
}

$user->skills()->saveMany($skillModels);

你传递的是一个简单的阵列。

Answer 2

只需尝试createMany：）

$post->comments()->createMany([
    ['message' => 'A new comment.'],
    ['message' => 'Another comment.'],
]);

查看文档：{{3}}

传递给HasOneOrMany的Laravel Argument 1 :: save（）必须是给定的Model数组的实例

2 个答案: