Laravel-如何在我的Excel导出中包含请求

Question

我正在使用Laravel 5.8，Maatwebsite Excel 3.1和PHP 7开发出一个考勤应用程序。我希望用户能够导出到仅优于选定条件的Excel。视图刀片可以做到这一点，但是excel可以带出一切。

AttendanceController

    public function show(Request $request,$user_id,$export=false)
{
    $user= User::findOrFail($user_id);
    $data['title']='Attendance of '.$user->name;
    $render=[];
    $attendance = new Attendance();
    $attendance= $attendance->with('relUser');
    $attendance=$attendance->where('user_id',$user_id);

    if(isset($request->start_date) && isset($request->end_date))
    {
        $attendance=$attendance->whereBetween('date',[$request->start_date,$request->end_date]);
        $render['start_date']=$request->start_date;
        $render['end_date']=$request->end_date;
    }elseif(isset($request->start_date))
    {
        $attendance=$attendance->where('date',$request->start_date);
        $render['start_date']=$request->start_date;
    }
    if(isset($request->status))
    {
        $attendance=$attendance->where('status',$request->status);
        $render['status']=$request->status;
    }
    if(!empty($export))
    {
        return Excel::download(new AttendanceExport($user_id), $user->name.'.xlsx');
    }
    $attendance= $attendance->orderBy('id','DESC');
    $attendance= $attendance->paginate(10);
    $attendance= $attendance->appends($render);
    $data['attendances']=$attendance;
    $data['user']=$user;
    return view('admin.attendance.show',$data);
}

我的出勤控制器包括isset（$ request），用于开始日期，结束日期和状态。

视图：show.blade.php

   <div class="row">
    <div class="col-sm-8">
        <h4 class="page-title">{{ $title }}</h4>
    </div>
</div>
<div class="row" style="margin-bottom: 10px">
    {{ Form::model(request(),['method'=>'get']) }}
    <div class="col-sm-3">
        {{ Form::date('start_date',null,['class'=>'form-control','placeholder'=>'Date']) }}
    </div>
    <div class="col-sm-3">
        {{ Form::date('end_date',null,['class'=>'form-control','placeholder'=>'Date']) }}
    </div>
    <div class="col-sm-4">
        {{ Form::select('status',['Present'=>'Present','Absent'=>'Absent'],null,['class'=>'form-control','placeholder'=>'Please select status']) }}
    </div>
    <div class="col-sm-2">
        {{ Form::submit('Search',['class'=>'btn btn-warning']) }}
        <a href="{{ route('attendance.show',[$user->id,'export']) }}" class="btn btn-info">Export</a>
    </div>
    {{ Form::close() }}
</div>
<div class="row">
    <div class="col-md-12">
        <div>
            <table class="table table-striped custom-table m-b-0 datatable">
                <thead>
                <tr>
                    <th>Date</th>
                    <th>Time</th>
                    <th>Status</th>
                </tr>
                </thead>
                <tbody>
                @foreach($attendances as $attendance)

                    <tr>
                        <td>{{ $attendance->date }}</td>
                        <td>
                            {{ $attendance->in_time.'-'.$attendance->out_time }}
                        </td>
                        <td>{{ $attendance->status }}</td>
                    </tr>
                @endforeach
                </tbody>
            </table>
            {{ $attendances->links() }}
            <a href="{{ route('attendance.index') }}" class="btn btn-warning">Back</a>
        </div>
    </div>
</div>

从View刀片中，我将发送到AttendanceExport，该文件将发送到Excel。

出勤出口

namespace App\Exports;

use App\Attendance;
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\FromQuery;
use Maatwebsite\Excel\Concerns\WithHeadings;

class AttendanceExport implements FromQuery, WithHeadings
{
protected $user_id;
public function __construct($user_id)
{
    $this->user_id= $user_id;
}

use Exportable;
/**
* @return \Illuminate\Support\Collection
*/
public function query()
{
    return Attendance::query()->select('id','date','in_time','out_time','status')->where('user_id',$this->user_id);
}
/*public function collection()
{
    return Attendance::all();
}*/
public function headings(): array
{
    return [
        'Serial',
        'Date',
        'In Time',
        'Out Time',
        'Status'
    ];
}

但是，excel显示所有$ user_id信息。我希望将start_date，end_date和status的isset（$ request）包含在Excel导出中，以便导出数据将基于此条件，就像在视图刀片中一样