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<?php
/*
* This file is part of the SgDatatablesBundle package.
*
* (c) stwe <https://github.com/stwe/DatatablesBundle>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Sg\DatatablesBundle\Response;
use Doctrine\ORM\Tools\Pagination\Paginator;
use Exception;
use Sg\DatatablesBundle\Datatable\Column\ColumnInterface;
use Sg\DatatablesBundle\Datatable\DatatableInterface;
use Symfony\Component\HttpFoundation\JsonResponse;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\HttpFoundation\RequestStack;
class DatatableResponse
{
/**
* The current Request.
*
* @var Request
*/
private $request;
/**
* $_GET or $_POST parameters.
*
* @var array
*/
private $requestParams;
/**
* A DatatableInterface instance.
* Default: null.
*
* @var DatatableInterface|null
*/
private $datatable;
/**
* A DatatableQueryBuilder instance.
* This class generates a Query by given Columns.
* Default: null.
*
* @var DatatableQueryBuilder|null
*/
private $datatableQueryBuilder;
public function __construct(RequestStack $requestStack)
{
$this->request = $requestStack->getCurrentRequest();
$this->datatable = null;
$this->datatableQueryBuilder = null;
}
//-------------------------------------------------
// Getters && Setters
//-------------------------------------------------
/**
* @throws Exception
*
* @return $this
*/
public function setDatatable(DatatableInterface $datatable)
{
$val = $this->validateColumnsPositions($datatable);
if (\is_int($val)) {
throw new Exception("DatatableResponse::setDatatable(): The Column with the index {$val} is on a not allowed position.");
}
$this->datatable = $datatable;
$this->datatableQueryBuilder = null;
return $this;
}
/**
* Get DatatableQueryBuilder instance.
*
* @return DatatableQueryBuilder
*/
public function getDatatableQueryBuilder()
{
return $this->datatableQueryBuilder ?: $this->createDatatableQueryBuilder();
}
//-------------------------------------------------
// Response
//-------------------------------------------------
/**
* Get response data as array.
*
* @param bool $countAllResults
* @param bool $outputWalkers
* @param bool $fetchJoinCollection
*
* @throws Exception
*
* @return array
*/
public function getData($countAllResults = true, $outputWalkers = false, $fetchJoinCollection = true)
{
if (null === $this->datatable) {
throw new Exception('DatatableResponse::getResponse(): Set a Datatable class with setDatatable().');
}
if (null === $this->datatableQueryBuilder) {
throw new Exception('DatatableResponse::getResponse(): A DatatableQueryBuilder instance is needed. Call getDatatableQueryBuilder().');
}
$paginator = new Paginator($this->datatableQueryBuilder->execute(), $fetchJoinCollection);
$paginator->setUseOutputWalkers($outputWalkers);
$formatter = new DatatableFormatter();
$formatter->runFormatter($paginator, $this->datatable);
$outputHeader = [
'draw' => (int) $this->requestParams['draw'],
'recordsFiltered' => \count($paginator),
'recordsTotal' => true === $countAllResults ? (int) $this->datatableQueryBuilder->getCountAllResults() : 0,
];
return array_merge($outputHeader, $formatter->getOutput());
}
/**
* @param bool $countAllResults
* @param bool $outputWalkers
* @param bool $fetchJoinCollection
*
* @throws Exception
*
* @return JsonResponse
*/
public function getResponse($countAllResults = true, $outputWalkers = false, $fetchJoinCollection = true)
{
return new JsonResponse($this->getData($countAllResults, $outputWalkers, $fetchJoinCollection));
}
//-------------------------------------------------
// Private
//-------------------------------------------------
/**
* Create a new DatatableQueryBuilder instance.
*
* @throws Exception
*
* @return DatatableQueryBuilder
*/
private function createDatatableQueryBuilder()
{
if (null === $this->datatable) {
throw new Exception('DatatableResponse::getDatatableQueryBuilder(): Set a Datatable class with setDatatable().');
}
$this->requestParams = $this->getRequestParams();
$this->datatableQueryBuilder = new DatatableQueryBuilder($this->requestParams, $this->datatable);
return $this->datatableQueryBuilder;
}
/**
* Get request params.
*
* @return array
*/
private function getRequestParams()
{
$parameterBag = null;
$type = $this->datatable->getAjax()->getMethod();
if ('GET' === strtoupper($type)) {
$parameterBag = $this->request->query;
}
if ('POST' === strtoupper($type)) {
$parameterBag = $this->request->request;
}
return $parameterBag->all();
}
/**
* Checks Column positions.
*
* @return bool|int
*/
private function validateColumnsPositions(DatatableInterface $datatable)
{
$columns = $datatable->getColumnBuilder()->getColumns();
$lastPosition = \count($columns);
/** @var ColumnInterface $column */
foreach ($columns as $column) {
$allowedPositions = $column->allowedPositions();
/** @noinspection PhpUndefinedMethodInspection */
$index = $column->getIndex();
if (\is_array($allowedPositions)) {
$allowedPositions = array_flip($allowedPositions);
if (\array_key_exists(ColumnInterface::LAST_POSITION, $allowedPositions)) {
$allowedPositions[$lastPosition] = $allowedPositions[ColumnInterface::LAST_POSITION];
unset($allowedPositions[ColumnInterface::LAST_POSITION]);
}
if (false === \array_key_exists($index, $allowedPositions)) {
return $index;
}
}
}
return true;
}
}

vendor/sg/datatablesbundle/Response/DatatableResponse.php line 143