将下拉列表中的值发送到控制器 laravel

Question

我是 laravel 新手，我需要一个下拉列表，然后选择一个选项，然后单击搜索按钮以显示结果。

控制器：索引显示所有要选择的导师，然后选择它时，将值传递给select_tutor_page。

public function index()
    {
        $tutors = Tutor::all();
        return view('home', ['tutors' =>$tutors]);
    }
    public function selectTutor(Request $request, $tutorId)
    {
        // $tutorId = Input::get('selectTutor');
        // i think should use input to get the value, but it get error with:Trying to get property of non-object (View: E:\xampp\htdocs\appointment\resources\views\selectTutor.blade.php)

        $tutor = Tutor::find($tutorId);

        return view('selectTutor',['tutor' => $tutor]);

    }

首页浏览量：

<form action="" method="POST" id="tutors">
{{ csrf_field() }}

<select class="form-control" name="selectTutor" id="selectTutor" data-parsley-required="true">

@foreach($tutors as $tutor)
<option value="{{ $tutor->id }}">{{ $tutor->name }}</option>
@endforeach
</select>

<a href = "{{url('selectTutor/'.$tutor->id)}}" class="btn btn-default" role="button">select</a>
</form>

选择导师页面：

<h1>{{$tutor->name}}<h1>

路线：

Route::get('/home', 'HomeController@index')->name('student.home');
Route::get('selectTutor/{tutorId}', 'HomeController@selectTutor')->name('select.tutor');

请帮忙....

Answer 1

这应该适合你：

 $tutorId = $request->selectTutor;

如果将此行添加到控制器，您可以查看所有当前请求数据：

dd($request->all());

此外，要使其正常工作，您需要向表单添加一个操作：

<form action="{{ url('selectTutor/'.$tutor->id) }}" method="POST" id="tutors">

并使用提交按钮提交此表单，而不是创建a href 链接。