The Rise of Contactless Payments:...
In recent years, contactless payments have surged in popularity, driven...
<?php
namespace Maatwebsite\Excel;
use Illuminate\Foundation\Bus\PendingDispatch;
use Illuminate\Support\Collection;
use Illuminate\Support\LazyCollection;
use Maatwebsite\Excel\Concerns\FromCollection;
use Maatwebsite\Excel\Concerns\FromQuery;
use Maatwebsite\Excel\Concerns\FromView;
use Maatwebsite\Excel\Concerns\WithCustomChunkSize;
use Maatwebsite\Excel\Concerns\WithCustomQuerySize;
use Maatwebsite\Excel\Concerns\WithMultipleSheets;
use Maatwebsite\Excel\Files\TemporaryFile;
use Maatwebsite\Excel\Files\TemporaryFileFactory;
use Maatwebsite\Excel\Jobs\AppendDataToSheet;
use Maatwebsite\Excel\Jobs\AppendPaginatedToSheet;
use Maatwebsite\Excel\Jobs\AppendQueryToSheet;
use Maatwebsite\Excel\Jobs\AppendViewToSheet;
use Maatwebsite\Excel\Jobs\CloseSheet;
use Maatwebsite\Excel\Jobs\QueueExport;
use Maatwebsite\Excel\Jobs\StoreQueuedExport;
use Traversable;
class QueuedWriter
{
/**
* @var Writer
*/
protected $writer;
/**
* @var int
*/
protected $chunkSize;
/**
* @var TemporaryFileFactory
*/
protected $temporaryFileFactory;
/**
* @param Writer $writer
* @param TemporaryFileFactory $temporaryFileFactory
*/
public function __construct(Writer $writer, TemporaryFileFactory $temporaryFileFactory)
{
$this->writer = $writer;
$this->chunkSize = config('excel.exports.chunk_size', 1000);
$this->temporaryFileFactory = $temporaryFileFactory;
}
/**
* @param object $export
* @param string $filePath
* @param string $disk
* @param string|null $writerType
* @param array|string $diskOptions
* @return \Illuminate\Foundation\Bus\PendingDispatch
*/
public function store($export, string $filePath, string $disk = null, string $writerType = null, $diskOptions = [])
{
$extension = pathinfo($filePath, PATHINFO_EXTENSION);
$temporaryFile = $this->temporaryFileFactory->make($extension);
$jobs = $this->buildExportJobs($export, $temporaryFile, $writerType);
$jobs->push(new StoreQueuedExport(
$temporaryFile,
$filePath,
$disk,
$diskOptions
));
return new PendingDispatch(
(new QueueExport($export, $temporaryFile, $writerType))->chain($jobs->toArray())
);
}
/**
* @param object $export
* @param TemporaryFile $temporaryFile
* @param string $writerType
* @return Collection
*/
private function buildExportJobs($export, TemporaryFile $temporaryFile, string $writerType): Collection
{
$sheetExports = [$export];
if ($export instanceof WithMultipleSheets) {
$sheetExports = $export->sheets();
}
$jobs = new Collection;
foreach ($sheetExports as $sheetIndex => $sheetExport) {
if ($sheetExport instanceof FromCollection) {
$jobs = $jobs->merge($this->exportCollection($sheetExport, $temporaryFile, $writerType, $sheetIndex));
} elseif ($sheetExport instanceof FromQuery) {
$jobs = $jobs->merge($this->exportQuery($sheetExport, $temporaryFile, $writerType, $sheetIndex));
} elseif ($sheetExport instanceof FromView) {
$jobs = $jobs->merge($this->exportView($sheetExport, $temporaryFile, $writerType, $sheetIndex));
}
$jobs->push(new CloseSheet($sheetExport, $temporaryFile, $writerType, $sheetIndex));
}
return $jobs;
}
/**
* @param FromCollection $export
* @param TemporaryFile $temporaryFile
* @param string $writerType
* @param int $sheetIndex
* @return Collection|LazyCollection
*/
private function exportCollection(
FromCollection $export,
TemporaryFile $temporaryFile,
string $writerType,
int $sheetIndex
) {
return $export
->collection()
->chunk($this->getChunkSize($export))
->map(function ($rows) use ($writerType, $temporaryFile, $sheetIndex, $export) {
if ($rows instanceof Traversable) {
$rows = iterator_to_array($rows);
}
return new AppendDataToSheet(
$export,
$temporaryFile,
$writerType,
$sheetIndex,
$rows
);
});
}
/**
* @param FromQuery $export
* @param TemporaryFile $temporaryFile
* @param string $writerType
* @param int $sheetIndex
* @return Collection
*/
private function exportQuery(
FromQuery $export,
TemporaryFile $temporaryFile,
string $writerType,
int $sheetIndex
): Collection {
$query = $export->query();
if ($query instanceof \Laravel\Scout\Builder) {
return $this->exportScout($export, $temporaryFile, $writerType, $sheetIndex);
}
$count = $export instanceof WithCustomQuerySize ? $export->querySize() : $query->count();
$spins = ceil($count / $this->getChunkSize($export));
$jobs = new Collection();
for ($page = 1; $page <= $spins; $page++) {
$jobs->push(new AppendQueryToSheet(
$export,
$temporaryFile,
$writerType,
$sheetIndex,
$page,
$this->getChunkSize($export)
));
}
return $jobs;
}
/**
* @param FromQuery $export
* @param TemporaryFile $temporaryFile
* @param string $writerType
* @param int $sheetIndex
* @return Collection
*/
private function exportScout(
FromQuery $export,
TemporaryFile $temporaryFile,
string $writerType,
int $sheetIndex
): Collection {
$jobs = new Collection();
$chunk = $export->query()->paginate($this->getChunkSize($export));
// Append first page
$jobs->push(new AppendDataToSheet(
$export,
$temporaryFile,
$writerType,
$sheetIndex,
$chunk->items()
));
// Append rest of pages
for ($page = 2; $page <= $chunk->lastPage(); $page++) {
$jobs->push(new AppendPaginatedToSheet(
$export,
$temporaryFile,
$writerType,
$sheetIndex,
$page,
$this->getChunkSize($export)
));
}
return $jobs;
}
/**
* @param FromView $export
* @param TemporaryFile $temporaryFile
* @param string $writerType
* @param int $sheetIndex
* @return Collection
*/
private function exportView(
FromView $export,
TemporaryFile $temporaryFile,
string $writerType,
int $sheetIndex
): Collection {
$jobs = new Collection();
$jobs->push(new AppendViewToSheet(
$export,
$temporaryFile,
$writerType,
$sheetIndex
));
return $jobs;
}
/**
* @param object|WithCustomChunkSize $export
* @return int
*/
private function getChunkSize($export): int
{
if ($export instanceof WithCustomChunkSize) {
return $export->chunkSize();
}
return $this->chunkSize;
}
}
Blog Section
Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.
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