我收到此错误“传递给Illuminate \ Database \ Grammar :: parameterize（）的参数1必须为类型

Question

当我尝试向表中插入数据时

  

传递给Illuminate \ Database \ Grammar :: parameterize（）的参数1必须为数组类型，给定字符串，在C：\ xampp \ htdocs \ Portal \ vendor \ laravel \ framew中调用...

视图

class InitialWorker(ctx: Context, params: WorkerParameters) : Worker(ctx, params) {

   override fun doWork(): Result {
       // Do Something Useful

       // Enqueue the periodic Worker
       val dailyWorkRequest = PeriodicWorkRequestBuilder<DailyWorker>(1, TimeUnit.DAYS)
               .addTag(TAG_OUTPUT)
               .build()
       WorkManager.getInstance(applicationContext).enqueue(dailyWorkRequest)

       return Result.success()
   }
}

控制器

<form method="post" action="{{ route('notice.store') }}">
    {{ csrf_field() }}

    <div class="form-group">
        <label for="Select Group to Post  Notice">Select Group to Post Notice </label>
        <select class="bg-white text-danger  form-control " name='GroupID[]' multiple>
            @foreach ($users as $user)
                <option value="{{ $user->GroupID }}">{{ $user->GroupID }}</option>
            @endforeach
        </select>
    </div>
    <div class="form-group">
        <label for="Enter Notice">Enter Notice</label>
        <input class="bg-white text-danger p-2 form-control form-control-sm" type="text" name="Notice" placeholder="Enter Notice">
    </div>

    <input class="btn btn-danger btn-lg px-5" type="submit" name="submit">
</form>

Answer 1

我想您收到此错误的原因是：

$storeInfo->GroupID = $request->input('GroupID');

$request->input('GroupID')将返回一个数组（name='GroupID[]'），而不是单个ID。

由于您已经遍历了组ID，因此可以改用GroupId的值：

public function store(Request $request)
{
    foreach ($request->input('GroupID') as $groupId) {
        $storeInfo = new notice();
        $storeInfo->GroupID = $groupId; //<--here
        $storeInfo->Notice = $request->input('Notice');
        $storeInfo->save();
    }

    return redirect('notice');
}

Answer 2

尝试更改控制器逻辑

 public function store(Request $request)
{
    //
    $member=$request->input('GroupID');
    foreach($member as $value){
        $storeInfo = new notice();
        $storeInfo->GroupID = $value;
        $storeInfo->Notice = $request->input('Notice');
        $storeInfo->save();
    }

        return redirect('/notice');
}