Laravel excel export how to export conditional data?

Question

I am trying to export partial data from my table not all data, I am using Maatwebsite plugin

I have tried below code in controller

public function report(Request $request)
{
       
     
        $sdate  = $request->query('sdate');
        $edate  = $request->query('edate');
       
        
       
        $report = Report::whereDate('created_at', '>=', $sdate)
                                   ->whereDate('created_at', '<=', $edate)
                                   ->get();
        

        
       return Excel::download($report, 'report.xlsx');

 }

In this time I am getting empty excel file.

I am able to get all data after creating app/export

like below

app/export/ReportExport.php

public function collection()
{
        return Report::all();
}

but how I can I do it in controller ? or how can I sent $report data controller to collection ?

Answer 1

You can use the FromQuery concern provided by the package.

namespace App\Exports;

use App\Report;
use Maatwebsite\Excel\Concerns\FromQuery;
use Maatwebsite\Excel\Concerns\Exportable;

class ReportExport implements FromQuery
{
    use Exportable;

    public function __construct($start, $end)
    {
        $this->start = $start;
        $this->end = $end;
    }

    public function query()
    {
        return Report::query()->whereDate('created_at', '>=', $this->start)
                              ->whereDate('created_at', '<=', $this->end);
    }
}

Then from you controller, you can call it

return (new ReportExport($sdate, $edate))->download('report.xlsx');

I have not tested the code. So apologies if I made a mistake. You can refer to official documentation.

There are also other methods of exporting which you can find from the documentation.