在视图中，当我们将按钮路由到控制器内部的函数时，如何在该视图中传递当前值中的两个或更多个值。
我正在练习创建学生成绩管理系统。在从ResultController的索引路由的视图中，我们具有用于查看类..或单个学生的评分表的链接选项。当我们单击选择班级时，它会重定向到一个视图，其中有两个下拉菜单可以选择班级和一批学生。当我们选择受尊重的班级和批次时，值class_id和batch_id被路由到ResultControler中的函数结果，我们从该班级和批次中选择学生。在该视图中，我们显示了学生的分数表（如果有的话），下面我添加了一个按钮来添加分数/创建分数表。
但是，我很困惑如何才能通过按钮传递那些class_id和batch_id以在ResultController中创建函数。
public function index()
{
return view('resultmainpage');
}
public function choose()
{
$classes= Sclass::all();
$batches= Batch::all();
return view('chooseclassbatchresult',compact('classes','batches'));
}
public function result(Request $request)
{
$classid = $request->class;
$batchid = $request->batch;
//dd($batchid);
$students =Student::where('sclass_id',$classid)
->where('batch_id', $batchid)
->whereHas('subject')
->get();
$class= Sclass::findOrFail($classid);
return view('showstudentresult',compact('students','class','classid','batchid'));
}
/**
* Show the form for creating a new resource.
*
* @return \Illuminate\Http\Response
*/
public function create()
{
// I need class_id and batch_id here
// dd($classidd);
$students = Student::where('sclass_id',$classid)
->where('batch_id',$batchid)
->whereDoesntHave('subject')
->get();
//dd($students);
路线：
Route::get('/rms','MainPageController@index')->name('rms');
Route::get('results/choose','ResultController@choose')->name('chooseresult');
Route::post('/showstudentresult','ResultController@result')->name('showstudentresult');
Route::resource('results','ResultController');
chooseclassbatchresult.blade.php
@extends('layout')
@section('content')
<h1>Please Choose the Class and Respected Batch Of Student For Result</h1>
</br>
</br>
<form action="{{route('showstudentresult')}}" method="post">
@csrf
<p>
<label>Class Name</label>
<select name='class'>
@foreach($classes as $class)
<option value="{{$class->id}}">{{$class->name}}</option>
@endforeach
</select>
</br>
</p>
<p>
<label>Batch</label>
<select name='batch'>
@foreach($batches as $batch)
<option value="{{$batch->id}}">{{$batch->batch}}</option>
@endforeach
</select>
</p>
</br>
<input type="submit" value="View">
</form>
</br>
</br>
</br>
<h1>OR</h1>
<h3>
<button><a href={{route('students.create')}}>Add New Student</a></button>
</h3>
@endsection
Showstudentresult.blade.php
@extends('layout')
@section('content')
<table border=1>
<thead>
<tr>
<th>S.N</th>
<th>Name</th>
<th>Roll NO</th>
@foreach($class->subjects as $subject)
<th>{{$subject->name}}</th>
@endforeach
<th>Total Mark</th>
<th>Percentage</th>
<th>Division</th>
<th>Action</th>
</tr>
</thead>
<tbody>
<?php $id = 1; ?>
@foreach($students as $student)
<tr>
<td><?php echo $id;?></td>
<td>{{$student->name}}</td>
<td>{{$student->roll}}</td>
@foreach($student->subjects as $subject)
<th>{{$subject->pivot->mark}}</th>
@endforeach
<td>{{$student->result->total_mark}}</td>
<td>{{$student->result->percentage}}</td>
<td>{{$student->result->division}}</td>
<td>
<table>
<tr>
<td>
<button><a href="{{route('students.edit',$student->id)}}">Edit</a></button>
</td>
<td>
<form action="{{route('students.destroy',$student->id)}}" method="post">
@csrf
@method('DELETE')
<input type="submit" value="Delete"
onclick="return confirm('Are you sure you want to delete the student?')">
</form>
</td>
</tr>
</table>
</td>
</tr>
<?php $id++ ?>
@endforeach
</tbody>
</table>
</br>
</br>
<button><a href={{results.create}}>Create New</a></button>
@endsection
答案 0 :(得分：0)
如罗斯威尔逊在评论中建议的那样
我建议创建一个类似的单独页面 selectclassbatchresult结果具有提交要创建的数据的表单
在路线文件中添加一条路线，例如：
Route::post('/createPage', 'ResultController@createPage')->name('createPage');
在 ResultController 中添加以下功能：
public function createPage(Request $request)
{
// Get your required ids here
$classid = $request->class;
$batchid = $request->batch;
//dd($classid);
//dd($batchid );
}
在您的chooseclassbatchresult视图中，添加下面的另一种表单
<form action="{{ route('createPage') }}" method="post">
@csrf
<p>
<label>Class Name</label>
<select name='class'>
@foreach($classes as $class)
<option value="{{$class->id}}">{{$class->name}}</option>
@endforeach
</select>
</br>
</p>
<p>
<label>Batch</label>
<select name='batch'>
@foreach($batches as $batch)
<option value="{{$batch->id}}">{{$batch->batch}}</option>
@endforeach
</select>
</p>
</br>
<input type="submit" value="View">
</form>
答案 1 :(得分：0)
感谢您的回复。我有办法解决这个问题。我了解到可以使用输入type =“ hidden”将这些值带回控制器。
创建路线：
Route::post('/create_res', 'ResultController@create_res')->name('results.create_res');
在视图中，chooseclassbatchresult.blade.php
<form action="{{route('results.create_res')}}" method="POST">
@csrf
<input type="hidden" name="classid" value="{{$classid}}">
<input type="hidden" name="batchid" value="{{$batchid}}">
<input type="submit" value="Create Mark Sheet">
</form>
在结果控制器中；
public function create_res(Request $request){
$classid = $request->classid;
$batchid = $request->batchid;
$students = Student::where('sclass_id',$classid)
->where('batch_id',$batchid)
->whereDoesntHave('subject')
->get();
$classes= Sclass::findOrFail($classid);
//dd($students);
return view('addmarksheet',compact('students','classes'));
}