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<?php namespace App\Builders; use Illuminate\Database\Eloquent\Builder; use Illuminate\Pagination\Paginator; class Category extends Builder { /** * Execute the query as a "select" statement. * * @param array|string $columns * @return \Illuminate\Support\Collection */ public function get($columns = ['*']) { $collection = parent::get($columns); return $collection->withChildren('sub_categories', function ($list, $parent, $relation, $level, $addChildren) { $parent->load($relation); $parent->level = $level; $list->push($parent); if ($parent->$relation->count() == 0) { return; } foreach ($parent->$relation as $item) { $addChildren($list, $item, $relation, $level + 1, $addChildren); } }); } /** * Get the categories excluding their children. * * @param array|string $columns * @return \Illuminate\Support\Collection */ public function getWithoutChildren($columns = ['*']) { return parent::get($columns); } /** * Paginate the given query. * * @param int|null $perPage * @param array $columns * @param string $pageName * @param int|null $page * @return \Illuminate\Contracts\Pagination\LengthAwarePaginator * * @throws \InvalidArgumentException */ public function paginate($perPage = null, $columns = ['*'], $pageName = 'page', $page = null) { $page = $page ?: Paginator::resolveCurrentPage($pageName); $perPage = $perPage ?: $this->model->getPerPage(); $results = ($total = $this->toBase()->getCountForPagination()) ? $this->forPage($page, $perPage)->getWithoutChildren($columns) : $this->model->newCollection(); return $this->paginator($results, $total, $perPage, $page, [ 'path' => Paginator::resolveCurrentPath(), 'pageName' => $pageName, ]); } }
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