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API Platform - Custom resource Data paginator
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| <?php | |
| namespace App\DataProvider; | |
| use ApiPlatform\Core\DataProvider\PaginatorInterface; | |
| class DataPaginator implements PaginatorInterface, \IteratorAggregate | |
| { | |
| private $iterator; | |
| public function __construct( | |
| private int $currentPage, | |
| private int $maxResults, | |
| private array $results, // here the results for current page (or maybe pass all results, and in this class, calculate results for current page ? | |
| private ?float $totalItems = null // here, total items ($this->statsHelper->count() result function), or nothing | |
| ){} | |
| public function getLastPage(): float | |
| { | |
| return ceil($this->getTotalItems() / $this->getItemsPerPage()) ?: 1.; | |
| } | |
| public function getTotalItems(): float | |
| { | |
| // instead of 'return $this->statsHelper->count(), use return $this->totalItems ?: count($this->results); | |
| // if $this->totalItems is set, return it. Else, we estimate that $ this-> results contains all results and not just those of the current page | |
| return $this->totalItems ?: count($this->results); | |
| } | |
| public function getCurrentPage(): float | |
| { | |
| return $this->currentPage; | |
| } | |
| public function getItemsPerPage(): float | |
| { | |
| return $this->maxResults; | |
| } | |
| public function count() | |
| { | |
| return iterator_count($this->getIterator()); | |
| } | |
| public function getIterator() | |
| { | |
| if($this->iterator === null) { | |
| // $offset = (($this->getCurrentPage() - 1) * $this->getItemsPerPage()); | |
| $this->iterator = new \ArrayIterator($this->results); //results for current page. Or maybe pass all results, and here, calculate for current page results ? | |
| } | |
| return $this->iterator; | |
| } | |
| } |
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