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<?php |
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namespace SebastianBerc\Repositories\Mediators; |
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use Illuminate\Contracts\Container\Container as Application; |
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use Illuminate\Pagination\LengthAwarePaginator; |
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use Illuminate\Support\Collection; |
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use SebastianBerc\Repositories\Repository; |
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use SebastianBerc\Repositories\Services\CacheService; |
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use SebastianBerc\Repositories\Services\CriteriaService; |
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use SebastianBerc\Repositories\Services\DatabaseService; |
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use SebastianBerc\Repositories\Services\TransformService; |
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/** |
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* Class RepositoryMediator. |
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* |
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* @author Sebastian Berć <[email protected]> |
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* @copyright Copyright (c) Sebastian Berć |
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*/ |
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class RepositoryMediator |
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{ |
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/** |
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* Contains Laravel Application instance. |
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* |
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* @var Application |
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*/ |
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protected $app; |
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/** |
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* Contains a repository instance. |
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* |
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* @var Repository |
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*/ |
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protected $repository; |
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/** |
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* Contains a database service. |
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* |
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* @var DatabaseService |
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*/ |
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protected $database; |
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/** |
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* Contains an cache service. |
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* |
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* @var CacheService |
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*/ |
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protected $cache; |
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/** |
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* Contains a transform service. |
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* |
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* @var TransformService |
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*/ |
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protected $transform; |
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/** |
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* Contains an Criteria service. |
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* |
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* @var CriteriaService |
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*/ |
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protected $criteria; |
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/** |
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* Create a new Repositry Mediator instance. |
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* |
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* @param Application $app |
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* @param Repository $repository |
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*/ |
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public function __construct(Application $app, Repository $repository) |
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{ |
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$this->app = $app; |
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$this->repository = $repository; |
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$this->cache = new CacheService($app, $repository); |
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$this->database = new DatabaseService($app, $repository); |
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$this->transform = new TransformService($app, $repository); |
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$this->criteria = new CriteriaService($app, $repository); |
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} |
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/** |
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* Retrieve data from cache storage, or execute method |
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* on database and store result then return it. |
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* |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return mixed |
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*/ |
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public function cache($caller, array $parameters = []) |
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{ |
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return call_user_func_array([$this->cache, $caller], $parameters); |
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} |
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/** |
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* Execute method with parameters on database service. |
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* |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return mixed |
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*/ |
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public function database($caller, array $parameters = []) |
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{ |
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return call_user_func_array([$this->database, $caller], $parameters); |
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} |
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/** |
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* Execute transform method on specified transformer. |
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* |
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* @param mixed $collection |
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* |
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* @return Collection |
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*/ |
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public function transform($collection) |
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{ |
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if (!$collection instanceof Collection) { |
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// If given "collection" is an object we need to wrap it into an array, and pass into collection. |
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$collection = new Collection(is_array($collection) ? $collection : [$collection]); |
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} |
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// If transform is declared or set, we can execute transform on his object. |
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if ($this->hasTransformer()) { |
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return $this->transform->executeOn($collection); |
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} |
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// Otherwise, we can return collection without transformation. |
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return $collection; |
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} |
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/** |
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* Execute transform method on paginator items with specified transformer. |
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* |
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* @param LengthAwarePaginator $paginator |
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* |
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* @return LengthAwarePaginator |
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*/ |
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public function transformPaginator(LengthAwarePaginator $paginator) |
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{ |
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if (!$this->hasTransformer()) { |
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return $paginator; |
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} |
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$items = $this->transform($paginator->items())->toArray(); |
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return new LengthAwarePaginator($items, $paginator->total(), $paginator->perPage(), $paginator->currentPage()); |
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} |
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/** |
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* Determinate if repository has a transformer. |
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* |
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* @return bool |
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*/ |
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public function hasTransformer() |
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{ |
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return (bool) $this->repository->transformer; |
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} |
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/** |
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* Returns criteria service on model query. |
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* |
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* @return CriteriaService |
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*/ |
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public function criteria() |
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{ |
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return $this->criteria; |
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} |
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/** |
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* Determinate if repository has an criteria. |
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* |
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* @return bool |
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*/ |
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public function hasCriteria() |
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{ |
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return $this->criteria->hasCriteria(); |
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} |
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} |
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