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<?php |
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namespace SebastianBerc\Repositories\Services; |
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use Illuminate\Contracts\Container\Container as Application; |
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use Illuminate\Database\Eloquent\Builder; |
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use Illuminate\Database\Eloquent\Model as Eloquent; |
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use SebastianBerc\Repositories\Contracts\ServiceInterface; |
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use SebastianBerc\Repositories\Repository; |
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/** |
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* Class CacheService. |
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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 CacheService implements ServiceInterface |
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{ |
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/** |
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* Contains instance of repository. |
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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 cache repository. |
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* |
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* @var \Illuminate\Contracts\Cache\Repository |
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*/ |
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protected $cache; |
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/** |
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* Contains tag for repository model. |
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* |
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* @var string |
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*/ |
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protected $tag; |
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/** |
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* Contains cache life time. |
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* |
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* @var int |
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*/ |
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protected $lifetime; |
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/** |
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* Contains cache key for given action. |
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* |
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* @var string |
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*/ |
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protected $cacheKey; |
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/** |
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* Create a new cache service 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->repository = $repository; |
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$this->lifetime = $repository->lifetime ?: 30; |
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$this->tag = $repository->makeModel()->getTable(); |
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$this->cache = $app->make('cache.store'); |
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} |
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/** |
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* Execute refresh on cache service and update action on database service. |
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* |
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* @param int $identifier |
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* @param array $attributes |
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* |
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* @return mixed |
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*/ |
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public function update($identifier, array $attributes = []) |
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{ |
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$this->forget('all', ['columns' => ['*']]); |
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return $this->refresh('update', compact('identifier', 'attributes')); |
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} |
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/** |
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* Forget, and store new data into cache. |
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* |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return mixed |
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*/ |
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public function refresh($caller, array $parameters = []) |
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{ |
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$cacheKey = $this->cacheKey($caller, $parameters); |
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$this->cache()->forget($cacheKey); |
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return $this->store($caller, $parameters); |
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} |
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/** |
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* Generate and return cache key for caller with specified parameters. |
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* |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return string |
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*/ |
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public function cacheKey($caller, array $parameters = []) |
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{ |
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$parameters = compact('caller', 'parameters'); |
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if ($this->repository->model instanceof Eloquent || $this->repository->model instanceof Builder) { |
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$parameters['eager'] = md5(serialize($this->repository->with)); |
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} |
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if ($this->repository->mediator->criteria()->hasCriteria()) { |
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$parameters['criteria'] = md5(serialize($this->repository->mediator->criteria()->getCriterias())); |
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} |
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return md5(serialize($parameters)); |
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} |
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/** |
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* Initialize cache repository with specified tag for given model. |
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* |
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* @return \Illuminate\Contracts\Cache\Repository |
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*/ |
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protected function cache() |
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{ |
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return method_exists($this->cache, 'tags') ? $this->cache->tags($this->tag) : $this->cache; |
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} |
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/** |
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* Store data in cache behind caller with specified parameters. |
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* |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return mixed |
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*/ |
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public function store($caller, array $parameters = []) |
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{ |
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$this->forget('all', ['columns' => ['*']]); |
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$cacheKey = $this->cacheKey($caller, $parameters); |
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return $this->cache()->remember($cacheKey, $this->lifetime, function () use ($caller, $parameters) { |
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return call_user_func_array([$this->repository->mediator, 'database'], [$caller, $parameters]); |
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}); |
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} |
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/** |
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* Execute forget on cache service and delete action on database services. |
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* |
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* @param int $identifier |
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* |
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* @return bool |
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*/ |
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public function delete($identifier) |
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{ |
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$this->forget('all', ['columns' => ['*']]); |
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return $this->forget('delete', compact('identifier')); |
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} |
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/** |
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* Forget data in cache behind caller with specified parameters. |
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* |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return bool |
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*/ |
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public function forget($caller, array $parameters = []) |
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{ |
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$cacheKey = $this->cacheKey($caller, $parameters); |
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if ($caller == 'delete') { |
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$this->repository->mediator->database($caller, $parameters); |
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} |
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return $this->cache()->forget($cacheKey); |
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} |
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/** |
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* Dynamicly call method on cache service. |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return mixed |
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*/ |
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public function __call($caller, array $parameters = []) |
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{ |
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return $this->retrieveOrStore($caller, $parameters); |
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} |
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/** |
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* Retrieve or store and return data from cache. |
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* @param string $caller |
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* @param array $parameters |
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* |
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* @return mixed |
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*/ |
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public function retrieveOrStore($caller, array $parameters = []) |
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{ |
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$cacheKey = $this->cacheKey($caller, $parameters); |
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return $this->retrieve($cacheKey) ?: $this->store($caller, $parameters); |
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} |
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/** |
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* Return data for given cache key. |
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* @param string $cacheKey |
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* |
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* @return bool |
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*/ |
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public function retrieve($cacheKey) |
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{ |
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if ($this->has($cacheKey)) { |
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return $this->cache()->get($cacheKey); |
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} |
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return false; |
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} |
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/** |
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* Check if specified cache key exists and has data. |
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* |
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* @param string $cacheKey |
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* |
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* @return bool |
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*/ |
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public function has($cacheKey) |
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{ |
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return $this->cache()->has($cacheKey); |
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} |
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} |
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