Laravel 控制器不传递数据

Question

我正在创建一个非常简单的调查网络应用程序，并且在回答创建的调查时，控制器在控制器中不起作用，而不是转储数组数据及其信息，而是直接重定向回表单，并且不会转储任何东西，执行它只是重定向回表单的代码时没有错误。我已经尝试重新迁移，并在修复了一些问题但仍然不是主要问题的视图中重写表单

调查负责人：

public function store(Questionnaire $questionnaire, $slug){

        $data = request()->validate([
            'responses.*.answerid' => 'required',
            'responses.*.question_id' => 'required',
            'survey.name' => 'required',
            'survey.email' =>'required | email',
        ]);

        dd($data);

    }

Blade.php 查看：

@extends('layouts.app')

@section('content')
<div class="container">
    <div class="row justify-content-center">
        <div class="col-md-8">


            <h1>{{ $questionnaire->title }}</h1>
            <form action = "/surveys/{{ $questionnaire->id }}-{{Str::slug($questionnaire->title)}}" method = "post">
                @csrf 
                @foreach($questionnaire->questions as $key => $question)

                <div class="card mt-4">
                    <div class="card-header"><strong> {{ $key + 1 }} </strong>{{ $question->question }}</div>

                        <div class = "card-body">
                            @error('responses.' . $key . '.answerid')
                                <small class = "text-danger">{{ $message }}</small>
                            @enderror
                            <ul class = "list-group">
                                @foreach($question->answers as $answer)
                                    <label for="answer{{$answer->id}}">
                                        <li class="list-group-item">
                                            <input type = "hidden" name = 'responses[{{$key}}][questionid]' value = '{{$question->id}}'>
                                            <input type = "radio" name = 'responses[{{$key}}][answerid]' id = 'answer{{ $answer->id }}' class = "mr-2" value= "{{$answer->id}}" {{ old('responses.' . $key . '.answer_id') == $answer->id ? 'checked' : '' }}>
                                            {{ $answer->answer }}
                                        </li>
                                    </label>
                                @endforeach
                            </ul>
                        </div>
                    </div>

                @endforeach
                <div class="card mt-4">
                    <div class="card-header">Your Information</div>

                    <div class="card-body">
                            <div class="form-group">
                                <label for="name">Your Name</label>
                                <input name = "survey[name]" type="text" class="form-control" id="name" aria-describedby="nameHelp" placeholder="Enter Name">
                                <small id="nameHelp" class="form-text text-muted">Please Enter Your Name</small>

                                @error('name')
                                    <small class = "text-danger">{{ $message }}</small>
                                @enderror

                            </div>
                        </div>
                        <div class="card-body">
                            <div class="form-group">
                                <label for="email">Your Email</label>
                                <input name = "survey[email]" type="email" class="form-control" id="email" aria-describedby="emailHelp" placeholder="Enter Email">
                                <small id="emailHelp" class="form-text text-muted">Please enter your Email</small>

                                @error('email')
                                    <small class = "text-danger">{{ $message }}</small>
                                @enderror


                            </div>
                        </div>
                        <div>
                                <button class = "btn btn-dark" type="submit">Complete Survey</button>
                            </div>
                    </div>
                </div>
            </form>
        </div>
    </div>
</div>
@endsection

路线文件：

Route::get('/surveys/{questionnaire}-{slug}', 'SurveyController@show');
Route::post('/surveys/{questionnaire}-{slug}', 'SurveyController@store');

问卷模型：

protected $guarded = [];
public function surveys(){
        return $this->hasMany(Survey::class);
    }

调查模型：

protected $guarded = [];
public function questionnaire(){
        return $this->belongsTo(Questionnaire::class);
    }

    public function responses(){
        return $this->hasMany(SurveyResponse::class);
    }

SurveyResponses 模型：

protected $guarded = [];

    public function survey(){
        return $this->belongsTo(Survey::class);
    }

调查迁移：

Schema::create('surveys', function (Blueprint $table) {
            $table->id();
            $table->unsignedBigInteger('questionnaire_id');
            $table->string('name');
            $table->string('email');
            $table->timestamps();
        });

调查响应迁移：

Schema::create('survey_responses', function (Blueprint $table) {
            $table->id();
            $table->unsignedBigInteger('survey_id');
            $table->unsignedBigInteger('questionid');
            $table->unsignedBigInteger('answerid');
            $table->timestamps();
        });

这是blade.php文件中的表格：

<form action = "/surveys/{{ $questionnaire->id }}-{{Str::slug($questionnaire->title)}}" method = "post">
                @csrf 
                @foreach($questionnaire->questions as $key => $question)

                <div class="card mt-4">
                    <div class="card-header"><strong> {{ $key + 1 }} </strong>{{ $question->question }}</div>

                        <div class = "card-body">
                            @error('responses.' . $key . '.answerid')
                                <small class = "text-danger">{{ $message }}</small>
                            @enderror
                            <ul class = "list-group">
                                @foreach($question->answers as $answer)
                                    <label for="answer{{$answer->id}}">
                                        <li class="list-group-item">
                                            <input type = "hidden" name = 'responses[{{$key}}][questionid]' value = '{{ $question->id }}'>
                                            <input type = "radio" name = 'responses[{{$key}}][answerid]' id = 'answer{{ $answer->id }}' class = "mr-2" value= "{{$answer->id}}" {{ old('responses.' . $key . '.answer_id') == $answer->id ? 'checked' : '' }}>
                                            {{ $answer->answer }}
                                        </li>
                                    </label>
                                @endforeach
                            </ul>
                        </div>
                    </div>

                @endforeach
                <div class="card mt-4">
                    <div class="card-header">Your Information</div>

                    <div class="card-body">
                            <div class="form-group">
                                <label for="name">Your Name</label>
                                <input name = "survey[name]" type="text" class="form-control" id="name" aria-describedby="nameHelp" placeholder="Enter Name">
                                <small id="nameHelp" class="form-text text-muted">Please Enter Your Name</small>

                                @error('name')
                                    <small class = "text-danger">{{ $message }}</small>
                                @enderror

                            </div>
                        </div>
                        <div class="card-body">
                            <div class="form-group">
                                <label for="email">Your Email</label>
                                <input name = "survey[email]" type="email" class="form-control" id="email" aria-describedby="emailHelp" placeholder="Enter Email">
                                <small id="emailHelp" class="form-text text-muted">Please enter your Email</small>

                                @error('email')
                                    <small class = "text-danger">{{ $message }}</small>
                                @enderror


                            </div>
                        </div>
                        <div>
                                <button class = "btn btn-dark" type="submit">Complete Survey</button>
                        </div>
                        @if ($errors->any())
                            <div class="alert alert-danger">
                                <ul>
                                    @foreach ($errors->all() as $error)
                                         <li>{{ $error }}</li>
                                    @endforeach
                                </ul>
                            </div>
                        @endif
                    </div>
                </div>
            </form>

这是应该传递问题 id 的输入：

<input type = "hidden" name = 'responses[{{$key}}][questionid]' value = '{{ $question->id }}'>

Answer 1

如果您的请求验证失败，您的控制器中的dd($data); 将不会运行，因为当验证失败时，它会重定向到您的视图并出现错误。所以你有两种方法可以看到错误：

1- 在您的控制器中使用以下代码：

use Illuminate\Support\Facades\Validator; // Important to use Validator Facade in this case

public function store(Questionnaire $questionnaire, $slug){

 $validator = Validator::make($request->all(), [
            'responses.*.answerid' => 'required',
            'responses.*.question_id' => 'required',
            'survey.name' => 'required',
            'survey.email' =>'required|email',
        ]);


        if ($validator->fails()) {
            //dd($validator);
            return redirect(route('route-name'))
                        ->withErrors($validator)
                        ->withInput();
        }
}

2- 在您的视图中使用以下代码：

<!-- /resources/views/view-name.blade.php -->


@if ($errors->any())
    <div class="alert alert-danger">
        <ul>
            @foreach ($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
@endif