Laravel 从 for-each 循环中存储值并将其作为数组传递

Question

我的创建视图中有两个 for-each 循环 [Subject_id，Lead_id]，我想使用数组方法将 for-each 值存储到我的数据库中，但我不能'没有人能修改我的代码或指出正确的方法，谢谢。

控制器：

public function store(Request $request)
{
    //
    $input = $request->all();
    $items = array(['Subject_id','Lead_id']);
    foreach($input as $inputs) {
        $items[] = $inputs;
    }
    $scores = new Score();
    $scores->Subject_id=$items['Subject_id'];
    $scores->Lead_id=$items['Lead_id'];
    $scores->save();
    dd($request->all());
    return redirect()->route('scores.create')->with('notif', 'Success.');
}

这是消息：

创建视图

@foreach ($leads as $lead)
    <tr>
        <td>{{ $lead->student_name }}</td>
        <td><input type="checkbox" class="checkbox" name="Lead_id[]"  value="{{ $lead->id }}"></td>
    </tr>
@endforeach
@foreach($subjects as $subject)
 <label >
    <input type="checkbox" name="Subject_id[]" value="{{ $subject->id }}">
    {{ $subject->subject_name }}
 </label>
 @endforeach

DD 结果：

Answer 1

更新您的 blade

    @foreach ($leads as $lead)
    {{ $lead->student_name }}
        @foreach($subjects as $subject)
          <input type="checkbox" name="Subject_id[$lead->id][]" value="{{ $subject->id }}">
          {{ $subject->subject_name }}
        @endforeach
   @endforeach

这就是你的控制器

   public function store(Request $request)
    {
        //
    $subjects = $request->get('Subject_id');

       foreach($subjects as $key=>$oneLeadOptions) {

           foreach($oneLeadOptions as $option){
                  $scores = new Score();
                  $scores->Subject_id  = $option;
                  $scores->Lead_id = $key;
                  $scores->save();

           }
       }
    //To to other redirects logic here
    }

试试这个

Answer 2

在您的控制器中尝试此代码

public function store(Request $request)
{
  $data = $request->all();

  $leads = $data['Lead_id'];

  $subject_ids = $data['Subject_id'];

  //insert using foreach loop
  foreach($leads as $key => $input) {
    $scores = new Score();
    $scores->Subject_id = isset($leads[$key]) ? $leads[$key] : ''; //add a default value here
    $scores->Lead_id = isset($subject_ids[$key]) ? $subject_ids[$key] : ''; //add a default value here
    $scores->save();
  }


  //insert using array at once
  $rows = [];
  foreach($leads as $key => $input) {
    array_push($rows, [
      'Subject_id' => isset($leads[$key]) ? $leads[$key] : '', //add a default value here
      'Lead_id' => isset($subject_ids[$key]) ? $subject_ids[$key] : '' //add a default value here
    ]);
  }
  Score::insert($rows);

  return redirect()->route('scores.create')->with('notif', 'Success.');
}

Answer 3

每次在 foreach 循环中创建模型实例都不是一种有效的方式。你可以这样做

   foreach($input as $inputs) {
     $dataArray[] = [
    'Subject_id' => $inputs['Subject_id'],
    'Lead_id' => $inputs['Lead_id'],
    ];    
    }
DB::table('Score')->insert($dataArray);

您可以随意操作数据。

有了这个代码我就有了这个

Laravel 从 for-each 循环中存储值并将其作为数组传递

Laravel store value from for-each loop and passed it as array

php

laravel