Как организовать этот контекст, чтобы правильно собрать ответы каждого участника?

Ответ 1

Я немного изменил структуру файлов HTML.

<form method="post" id="registration_form" action="http://proj.test/conference/1/conference-title/registration/storeRegistration">

{{csrf_field()}}

<h6>Participant - 1 - general</h6>
<div class="form-group">
    <label for="namegeneral_1">Name</label>
    <input type="text" id="namegeneral_1" name="participant[1][name]" required="" class="form-control" value="">
</div>

<div class="form-group">
    <label for="surnamegeneral_1">Surname</label>
    <input type="text" id="surnamegeneral_1" required="" class="form-control" name="participant[1][surname]" value="">
</div>

<div class="form-group">
    <label for="participant_question">Phone?</label>
    <input type="text" name="participant[1][answer]" class="form-control" required="">
    <input type="hidden" name="participant_question_required[]" value="1">
    <input type="hidden" value="1" name="participant[1][question_id]">
</div>

<input type="hidden" name="participant[1][rtypes]" value="1">

<h6> Participant - 2 - general</h6>

<div class="form-group">
    <label for="namegeneral_2">Name</label>
    <input type="text" id="namegeneral_2" name="participant[2][name]" required="" class="form-control" value="">
</div>

<div class="form-group">
    <label for="surnamegeneral_2">Surname</label>
    <input type="text" id="surnamegeneral_2" required="" class="form-control" name="participant[2][surname]" value="">
</div>

<div class="form-group">
    <label for="participant_question">Phone?</label>
    <input type="text" name="participant[2][answer]" class="form-control" required="">
    <input type="hidden" name="participant_question_required[]" value="1">
    <input type="hidden" value="1" name="participant[2][question_id]">
</div>

<input type="hidden" name="participant[2][rtypes]" value="1">

<h6> Participant - 1 - plus</h6>

<div class="form-group font-size-sm">
    <label for="nameplus_1">Name</label>
    <input type="text" id="nameplus_1" name="participant[3][name]" required="" class="form-control" value="">
</div>

<div class="form-group font-size-sm">
    <label for="surnameplus_1">Surname</label>
    <input type="text" id="surnameplus_1" required="" class="form-control" name="participant[3][surname]" value="">
</div>

<input type="hidden" name="participant[3][rtypes]" value="2">

<input type="submit" class="btn btn-primary" value="Store Registration">

Я буду хранить все participants в массиве с именем participant и отправить ТНМЕ на Backend

выход:

array:2 [▼
  "_token" => "WDtDV0CL6OKVCsGSi5HNyi4HQ6Pmo6VAwzDsgYK1"
  "participant" => array:3 [▼
    1 => array:5 [▼
      "name" => "ali"
      "surname" => "shahabi"
      "answer" => "0937"
      "question_id" => "1"
      "rtypes" => "1"
    ]
    2 => array:5 [▼
      "name" => "danyal"
      "surname" => "shahabi"
      "answer" => "0938"
      "question_id" => "1"
      "rtypes" => "1"
    ]
    3 => array:3 [▼
      "name" => "baba"
      "surname" => "babaei"
      "rtypes" => "2"
    ]
  ]
]

storeRegistration способ.

Я удалил validation из кода и сосредоточился на логике программы:

public function storeRegistration(Request $request, $id, $slug = null)
{

    # all_participants field
    $allParticipants = Conference::where('id', $id)->first()->all_participants;

    $total = Session::get('total');

    # user object
    $user = Auth::user();

    # add registration to Database
    $registration = Registration::create([
        'conference_id' => $id,
        'main_participant_id' => $user->id,
        'status' => ($total > 0) ? 'I' : 'C',
    ]);

    # List of all participants
    $participants_list=$request->get('participant');

    #add all participants to Database
    foreach ($participants_list as $participant)
    {
        $name = ($allParticipants) ? $participant['name'] : '';
        $surname = ($allParticipants) ? $participant['surname'] : '';
        $participant_result = Participant::create([
            'name' => $name,
            'surname' => $surname,
            'registration_id' => $registration->id,
            'registration_type_id' => $participant['rtypes']
        ]);

        # save answer to Database if exist
        if(isset($participant['question_id']))
        {
            $answer = Answer::create([
                'question_id' => $participant['question_id'],
                'participant_id' => $participant_result->id,
                'answer' => $participant['answer'],
            ]);}
    }

    return redirect(route('user.index', ['user' => Auth::id()]).'#myTickets');
}