Viewing file:  DownloadCollectionMixin.php (2.13 KB) -rw-r--r--
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<?php
namespace Maatwebsite\Excel\Mixins;
use Illuminate\Contracts\Support\Arrayable;
use Illuminate\Support\Collection;
use Maatwebsite\Excel\Concerns\Exportable;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Sheet;
class DownloadCollectionMixin
{
/**
* @return callable
*/
public function downloadExcel()
{
return function (string $fileName, string $writerType = null, $withHeadings = false, array $responseHeaders = []) {
$export = new class($this, $withHeadings) implements FromCollection, WithHeadings
{
use Exportable;
/**
* @var bool
*/
private $withHeadings;
/**
* @var Collection
*/
private $collection;
/**
* @param Collection $collection
* @param bool $withHeading
*/
public function __construct(Collection $collection, bool $withHeading = false)
{
$this->collection = $collection->toBase();
$this->withHeadings = $withHeading;
}
/**
* @return Collection
*/
public function collection()
{
return $this->collection;
}
/**
* @return array
*/
public function headings(): array
{
if (!$this->withHeadings) {
return [];
}
$firstRow = $this->collection->first();
if ($firstRow instanceof Arrayable || \is_object($firstRow)) {
return array_keys(Sheet::mapArraybleRow($firstRow));
}
return $this->collection->collapse()->keys()->all();
}
};
return $export->download($fileName, $writerType, $responseHeaders);
};
}
}
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