Laravel - How to export Excel data with Eloqeunt relationship from view? - php

Question

I'm currently using "maatwebsite/excel": "3.1.10", recently switched from 2.x version, and I'm having a problem with displaying excel data from view that is using Eloquent relationship. Here's all my code below.
UsersEarningHistory.php:
<?php
namespace App\Exports;
use App\EarningHistory;
use Illuminate\Contracts\View\View;
use Maatwebsite\Excel\Concerns\FromView;
use Maatwebsite\Excel\Concerns\ShouldAutoSize;
use Maatwebsite\Excel\Concerns\WithEvents;
use Maatwebsite\Excel\Events\AfterSheet;
use Maatwebsite\Excel\Concerns\WithMapping;
class UsersEarningHistory implements FromView, ShouldAutoSize, WithEvents, WithMapping
{
protected $history;
public function __construct($history = null)
{
$this->history = $history;
}
public function view(): View
{
return view('admin.commission.excel_table', [
'history' => $this->history ?: EarningHistory::all()
]);
}
public function registerEvents(): array
{
return [
AfterSheet::class => function(AfterSheet $event) {
$cellRange = 'A1:W1'; // All headers
$event->sheet->getDelegate()->getStyle($cellRange)->getFont()->setSize(14)->setBold($cellRange);
},
];
}
}
UserController where my method for exporting data is:
public function index(Request $request)
{
//
$active = $this->active;
$active[1] = 'commission';
view()->share('active', $active);
$breadcrumbs = [
['link' => '/admin', 'text' => 'Administration'],
['text' => 'Commission']
];
view()->share('breadcrumbs', $breadcrumbs);
$styles[] = '//cdn.jsdelivr.net/bootstrap.daterangepicker/2/daterangepicker.css';
view()->share('styles', $styles);
$scripts[] = '//cdn.jsdelivr.net/momentjs/latest/moment.min.js';
$scripts[] = '//cdn.jsdelivr.net/bootstrap.daterangepicker/2/daterangepicker.js';
$scripts[] = '/js/admin/commission.js';
view()->share('scripts', $scripts);
$history = new EarningHistory();
if ($request->filled('q')) {
$history = $history->whereHas('user', function ($query) use ($request) {
$query->where('username', 'like', '%' . $request->q . '%');
});
}
if ($request->filled('qn')) {
$history = $history->whereHas('user', function ($query) use ($request) {
$query->where('first_name', 'like', '%' . $request->qn . '%');
$query->orWhere('last_name', 'like', '%' . $request->qn . '%');
if (strpos( $request->qn, ' ') !== false) { // is both
$both = explode(" ",$request->qn);
if(isset($both[0]))
$query->orWhere('first_name', 'like', '%' . $both[0] . '%');
if(isset($both[1]))
$query->orWhere('last_name', 'like', '%' . $both[1] . '%');
}
});
}
if($request->filled('has_correct_ratio')) {
$history = $history->where('has_correct_ratio', $request->filled_correct_ratio);
}
if (!$request->filled('null')) {
$history = $history->where(function ($query) {
$query->where('personal_balance', '!=', 0)
->orWhere('group_balance', '!=', 0);
});
}
if ($request->filled('date')) {
$history = $history->whereBetween('created_at', [Carbon::parse('01.' . $request->date)->firstOfMonth(),
Carbon::parse('01.' . $request->date)->addMonth()->firstOfMonth()]);
}
if ($request->filled('export')) {
$date = $request->filled('date') ? 'Earning history for ' . Carbon::parse('01.' . $request->date)->format('F') :
'Earning history for all time';
return Excel::download( new UsersEarningHistory($history), $date.'history.xls');
}
$data['history'] = $history->paginate(15);
$data['request'] = $request;
return view('admin.commission.index', $data);
}
Export table blade:
<table class="table table-bordered table-striped">
<thead>
<tr>
<th>Name</th>
<th>Month</th>
<th>Amount</th>
<th>World Bonus</th>
<th>Total amount</th>
<th>Personal points</th>
<th>Group points</th>
{{--<td></td>--}}
</tr>
</thead>
<tbody>
#foreach($history as $obj)
<tr>
<td>
{{ $obj->user->first_name . ' ' . $obj->user->last_name }}
</td>
<td>{{$obj->created_at->format('F')}}</td>
<td>€{{ number_format($obj->personal_balance + $obj->group_balance, 2)}}</td>
<td>€{{ number_format($obj->world_bonus, 2)}}</td>
<td>€{{ number_format($obj->personal_balance + $obj->group_balance + $obj->world_bonus, 2)}}</td>
<td>
{{ intval($obj->personal_points) }}
</td>
<td>
{{ intval($obj->group_points) }}
</td>
<td>
{{ App\User::$_RANK[$obj->rank]['title'] }}
</td>
{{--<td align="center">--}}
{{--<a href="/admin/payouts/{{$obj->id}}" class="btn btn-primary btn-xs">--}}
{{--<i class="icon-eye"></i>--}}
{{--</a>--}}
{{--<!--TODO Prikaži akciju na osnovu trenutnog statusa-->--}}
{{--#if($obj->status=='pending')--}}
{{--<a href="javascript:;" class="ajax-action btn btn-sm btn-success" data-action="/ajax/payout-change-status" --}}
{{--data-obj-id="{{$obj->id}}" data-status="approved">#lang('form.approve')</a>--}}
{{--<a href="/admin/payouts/reject/{{$obj->id}}" class="btn btn-sm btn-danger" >#lang('form.reject')</a>--}}
{{--#endif--}}
{{--</td>--}}
</tr>
#endforeach
</tbody>
</table>
As you can see, I'm trying to get user name from his earning history, but when I try to export data, my excel file is empty, but it's not giving me any errors.
Note: EarningHistory is related with User model:
//EarningHistory model
public function user()
{
return $this->belongsTo('App\User', 'user_id', 'id')->withTrashed();
}
//User model
public function earning_history()
{
return $this->hasMany('App\EarningHistory');
}

Answer 1

Found a solution. My $history variable in UserController was returning Query builder, because I forgot to add ->get(); method :
return Excel::download( new UsersEarningHistory($history->get()), $date.'history.xls');
Now everything works as it should.