105 lines
3.0 KiB
PHP
105 lines
3.0 KiB
PHP
<?php
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namespace App\Controller\Component;
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use Cake\Controller\Component;
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use Cake\Controller\ComponentRegistry;
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use Cake\Http\Exception\NotFoundException;
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use InvalidArgumentException;
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use Cake\Controller\Component\PaginatorComponent;
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use Cake\Datasource\Pagination\NumericPaginator;
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use Cake\Utility\Hash;
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class CustomPaginationComponent extends Component
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{
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public function __construct(ComponentRegistry $registry, array $config = [])
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{
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parent::__construct($registry, $config);
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}
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protected $defaults = [
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'limit' => 10,
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'direction' => 'asc'
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];
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protected $settings = [
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];
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protected $validFields = [
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'limit',
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'page',
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'sort',
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'direction'
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];
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public function paginate(array $data): array
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{
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$request = $this->_registry->getController()->getRequest();
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$params = $request->getQueryParams();
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$settings = $this->defaults;
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foreach ($this->validFields as $validField) {
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if (isset($params[$validField])) {
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$settings[$validField] = $params[$validField];
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}
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}
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$count = count($data);
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if (!empty($settings['sort'])) {
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$data = $this->_sortData($data, $settings);
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}
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if (!empty($settings['limit'])) {
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$data = $this->_truncateData($data, $settings);
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}
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$this->_setPagingParams($settings, $count, count($data));
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return $data;
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}
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protected function _sortData(array $data, array &$settings): array
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{
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return Hash::sort($data, '{n}.' . $settings['sort'], strtolower($settings['direction']));
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}
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protected function _truncateData(array $data, array $settings): array
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{
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$page = $settings['page'] ?? 1;
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$limit = $settings['limit'] ?? 50;
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$offset = ($page - 1) * $limit;
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return array_slice($data, $offset, $limit);
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}
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protected function _setPagingParams(array $settings, int $count, int $currentCount): void
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{
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$controller = $this->getController();
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$request = $controller->getRequest();
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$limit = $settings['limit'] ?? 0;
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$pageCount = empty($settings['limit']) ? 1 : ceil($count/$limit);
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$page = $settings['page'] ?? 1;
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$start = $end = 0;
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$prevPage = $page > 1;
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$nextPage = true;
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if ($count) {
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$nextPage = $count > ($page * $limit);
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}
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if ($currentCount > 0) {
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$start = (($page - 1) * $limit) + 1;
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$end = $start + $currentCount - 1;
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}
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$paging = [
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'count' => $count,
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'current' => $currentCount,
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'perPage' => $limit,
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'page' => $page,
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'requestedPage' => $settings['page'] ?? 1,
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'pageCount' => $pageCount,
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'start' => $start,
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'end' => $end,
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'prevPage' => $page > 1,
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'nextPage' => $nextPage
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];
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$paging = ['organisations' => $paging + $settings];
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$controller->setRequest($request->withAttribute('paging', $paging));
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}
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}
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