*/ class DataTablePayload implements DataTablePayloadInterface, \Countable { private $taskLogFilter; private $broker; private $request; /** * @var \Closure */ private $rowCustomiser; /** * DataTablePayload constructor. * * @param TaskLogFilter $filter * @param TaskLogBrokerInterface $broker */ public function __construct(TaskLogFilter $filter, TaskLogBrokerInterface $broker) { $this->taskLogFilter = $filter; $this->broker = $broker; $this->request = DatatableRequest::fromGlobals(); $this->applyDataTableFilters(); } /** * You can pass an anonymous function to customise the final payload: either to change the value of a field or to add extra field(s); * * The function will be bind to the task log entity (TaskLogEntity) so $this can be used inside of the closure. * The return value needs to be an array. * * For example: *


     *  $payload->customiseRowBy(function (){
     *      $row['extraField'] = 'value';
     *      $row['extraField2'] = $this->getParameters()['some_parameter_key'];
     *      $row['createdAt'] = \tao_helpers_Date::displayeDate($this->getCreatedAt());
     *
     *      return $row;
     *  });
     *

* * @param \Closure $func * @return DataTablePayload */ public function customiseRowBy(\Closure $func) { $this->rowCustomiser = $func; return $this; } /** * @return array */ public function getPayload() { $countTotal = $this->count(); $page = $this->request->getPage(); $limit = $this->request->getRows(); // we don't want to "pollute" the original filter $cloneFilter = clone $this->taskLogFilter; $cloneFilter->setLimit($limit) ->setOffset($limit * ($page - 1)) ->setSortBy($this->request->getSortBy()) ->setSortOrder($this->request->getSortOrder()); // get task log entities by filters $collection = $this->broker->search($cloneFilter); // get customised data $customisedData = $this->getCustomisedData($collection); $data = [ 'rows' => $limit, 'page' => $page, 'amount' => count($collection), 'total' => ceil($countTotal / $limit), 'data' => $customisedData ?: $collection->toArray(), ]; return $data; } /** * Get customised data if we have a customiser set * * @param TaskLogCollection $collection * @return array */ private function getCustomisedData(TaskLogCollection $collection) { $data = []; if (!is_null($this->rowCustomiser)) { foreach ($collection as $taskLogEntity) { $newCustomiser = $this->rowCustomiser->bindTo($taskLogEntity, $taskLogEntity); $data[] = array_merge($taskLogEntity->toArray(), (array) $newCustomiser()); } } return $data; } /** * @return int */ public function count() { return $this->broker->count($this->taskLogFilter); } /** * Add filter values from request to the taskLogFilter. */ private function applyDataTableFilters() { $filters = $this->request->getFilters(); foreach ($filters as $fieldName => $filterValue) { if (empty($filterValue)) { continue; } if (is_array($filterValue)) { $this->taskLogFilter->in($fieldName, $filterValue); continue; } $this->taskLogFilter->eq($fieldName, (string) $filterValue); } } /** * @return array */ public function jsonSerialize() { return $this->getPayload(); } }