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<?php |
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/** |
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* Created by PhpStorm. |
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* User: arthur |
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* Date: 11.10.18 |
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* Time: 14:11. |
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*/ |
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namespace Foundation\Cache; |
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use Cache; |
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use Foundation\Exceptions\Exception; |
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use Illuminate\Support\Facades\Redis; |
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class ModelCache |
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{ |
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protected $model; |
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protected $cacheTime; |
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/* Unique secondary indexes */ |
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protected $secondaryIndexes; |
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/** |
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* ModelCache constructor. |
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*/ |
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public function __construct(string $model, array $indexes = [], $cacheTime = null) |
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{ |
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$this->model = $model; |
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$this->secondaryIndexes = $indexes; |
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$this->cacheTime = $cacheTime; |
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} |
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/** |
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* @param $id |
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* @param string $modelClass |
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* |
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* @return \Eloquent |
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*/ |
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public function find($id, $eagerLoad = true) |
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{ |
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$model = Cache::get(self::getCacheName($id)); |
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if ($eagerLoad) { |
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return $this->eagerLoadRelations($model); |
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} |
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return $model; |
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} |
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public function findBy(string $index, $key, $eagerLoad = true) |
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{ |
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if (!in_array($index, $this->secondaryIndexes)) { |
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throw new Exception('provided index does not exist as secondary index on the cache model'); |
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} |
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$modelId = $this->findSecondaryIndex($index, $key); |
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if ($modelId === null) { |
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$model = ($this->model)::where($index, $key)->first(); |
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if ($model !== null) |
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$this->store($model); |
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return $model; |
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} |
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return $this->find($modelId, $eagerLoad); |
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} |
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protected function eagerLoadRelations($model) |
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{ |
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if ($model !== null) { |
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return $model::eagerLoadRelations([$model])[0]; |
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} |
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} |
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protected function findSecondaryIndex(string $index, $key) |
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{ |
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return Cache::get($this->getCacheName($key, $index)); |
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} |
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/** |
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* @param string |
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*/ |
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public function getCacheName($id, string $index = 'id') |
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{ |
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return config('model.cache_prefix') . ':' . strtolower(get_short_class_name($this->model)) . ':' . $index . ':' . $id; |
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} |
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/** |
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* @return \Illuminate\Config\Repository|mixed |
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*/ |
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public function getCacheTime() |
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{ |
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return $this->cacheTime ?? config('model.cache_time'); |
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} |
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/** |
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* @param \Eloquent $model |
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*/ |
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public function store($model) |
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{ |
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Cache::put($this->getCacheName($model->getKey()), $model->newFromBuilder($model->getAttributes()), $this->getCacheTime()); |
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$this->storeSecondaryIndexReferences($model); |
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} |
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/** |
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* @param string $index |
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* @param \Eloquent $model |
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*/ |
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protected function storeSecondaryIndexReferences($model) |
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{ |
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foreach ($this->secondaryIndexes as $index) { |
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$indexValue = $model->$index; |
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if ($indexValue !== null) { |
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Cache::put($this->getCacheName($indexValue, $index), $model->getKey(), $this->getCacheTime()); |
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} |
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} |
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} |
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/** |
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* @param $id |
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* @param string $modelClass |
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* |
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* @return bool |
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*/ |
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public function remove($id) |
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{ |
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return Cache::forget($this->getCacheName($id)); |
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} |
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public static function clearAll() |
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{ |
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$pattern = config('model.cache_prefix'); |
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self::deleteWithPrefix($pattern); |
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} |
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/** |
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* @param $prefix |
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* |
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* @throws Exception |
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*/ |
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private static function deleteWithPrefix($prefix) |
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{ |
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$redis = self::getCacheConnection(); |
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$keyPattern = Cache::getPrefix() . $prefix . '*'; |
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$keys = $redis->keys($keyPattern); |
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$redis->delete($keys); |
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} |
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/** |
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* @throws Exception |
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* |
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* @return \Illuminate\Redis\Connections\Connection |
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*/ |
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private static function getCacheConnection() |
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{ |
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if (config('cache.default') === 'redis') { |
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return Redis::connection('cache'); |
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} |
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throw new Exception('This action is only possible with redis as cache driver'); |
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} |
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/** |
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* @param $modelClass |
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* |
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* @throws Exception |
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*/ |
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public function clearModelCache() |
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{ |
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$pattern = config('model.cache_prefix') . ':' . strtolower(get_short_class_name($this->model)); |
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self::deleteWithPrefix($pattern); |
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} |
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public function enabled(): bool |
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{ |
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return (bool)config('model.caching'); |
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} |
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} |
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deviouspk /
larapi
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