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<?php |
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/** |
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* Quantum PHP Framework |
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* |
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* An open source software development framework for PHP |
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* |
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* @package Quantum |
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* @author Arman Ag. <[email protected]> |
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* @copyright Copyright (c) 2018 Softberg LLC (https://softberg.org) |
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* @link http://quantum.softberg.org/ |
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* @since 2.9.7 |
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*/ |
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namespace Quantum\Paginator\Adapters; |
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use Quantum\Libraries\Database\Contracts\DbalInterface; |
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use Quantum\Paginator\Contracts\PaginatorInterface; |
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use Quantum\Paginator\Traits\PaginatorTrait; |
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use Quantum\Model\ModelCollection; |
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/** |
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* Class ModelPaginator |
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* @package Quantum\Paginator |
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*/ |
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class ModelPaginator implements PaginatorInterface |
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{ |
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use PaginatorTrait; |
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/** |
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* @var DbalInterface |
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*/ |
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private $ormInstance; |
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/** |
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* @var string |
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*/ |
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private $modelClass; |
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/** |
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* @param DbalInterface $ormInstance |
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* @param string $modelClass |
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* @param int $perPage |
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* @param int $page |
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*/ |
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public function __construct(DbalInterface $ormInstance, string $modelClass, int $perPage, int $page = 1) |
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{ |
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$this->initialize($perPage, $page); |
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$this->ormInstance = $ormInstance; |
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$this->modelClass = $modelClass; |
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$this->total = $this->ormInstance->count(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public static function fromArray(array $params): PaginatorInterface |
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{ |
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return new self( |
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$params['orm'], |
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$params['model'], |
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$params['perPage'] ?? 10, |
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$params['page'] ?? 1 |
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); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function data(): ModelCollection |
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{ |
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$ormInstances = $this->ormInstance |
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->limit($this->perPage) |
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->offset($this->perPage * ($this->page - 1)) |
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->get(); |
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$models = array_map(function ($item) { |
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return wrapToModel($item, $this->modelClass); |
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}, $ormInstances); |
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return new ModelCollection($models); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function firstItem() |
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{ |
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$data = $this->data(); |
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if ($data->isEmpty()) { |
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return null; |
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} |
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return $data->first(); |
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} |
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/** |
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* @inheritDoc |
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*/ |
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public function lastItem() |
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{ |
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$data = $this->data(); |
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if ($data->isEmpty()) { |
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return null; |
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} |
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return $data->last(); |
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} |
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} |