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<?php |
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/** |
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* User: jg |
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* Date: 13/02/17 |
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* Time: 16:29 |
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*/ |
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namespace ByJG\AnyDataset\Store; |
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use ByJG\AnyDataset\DbDriverInterface; |
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use ByJG\AnyDataset\Dataset\ArrayDataset; |
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use ByJG\Util\Uri; |
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use DateInterval; |
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use Psr\Cache\CacheItemPoolInterface; |
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class DbCached implements DbDriverInterface |
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{ |
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/** |
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* @var \ByJG\AnyDataset\DbDriverInterface|null |
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*/ |
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protected $dbDriver = null; |
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/** |
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* @var CacheItemPoolInterface; |
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*/ |
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protected $cacheEngine = null; |
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protected $timeToCache = 30; |
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/** |
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* DbCached constructor. |
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* |
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* @param \ByJG\AnyDataset\DbDriverInterface|null $dbDriver |
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* @param \Psr\Cache\CacheItemPoolInterface $cacheEngine |
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* @param int $timeToCache |
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*/ |
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public function __construct(DbDriverInterface $dbDriver, CacheItemPoolInterface $cacheEngine, $timeToCache = 30) |
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{ |
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$this->dbDriver = $dbDriver; |
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$this->cacheEngine = $cacheEngine; |
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$this->timeToCache = $timeToCache; |
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} |
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public function getIterator($sql, $params = null) |
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{ |
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// Otherwise try to get from cache |
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$key = $this->getQueryKey($sql, $params); |
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// Get the CACHE |
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$cacheItem = $this->cacheEngine->getItem($key); |
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if (!$cacheItem->isHit()) { |
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$iterator = $this->dbDriver->getIterator($sql, $params); |
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$cacheItem->set($iterator->toArray()); |
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$cacheItem->expiresAfter(DateInterval::createFromDateString($this->timeToCache . " seconds")); |
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$this->cacheEngine->save($cacheItem); |
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} |
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$arrayDS = new ArrayDataset($cacheItem->get()); |
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return $arrayDS->getIterator(); |
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} |
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protected function getQueryKey($sql, $array) |
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{ |
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$key1 = md5($sql); |
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// Check which parameter exists in the SQL |
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$arKey2 = array(); |
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if (is_array($array)) { |
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foreach ($array as $key => $value) { |
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if (preg_match("/\[\[$key\]\]/", $sql)) { |
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$arKey2[$key] = $value; |
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} |
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} |
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} |
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// Define the query key |
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if (is_array($arKey2) && count($arKey2) > 0) { |
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$key2 = ":" . md5(json_encode($arKey2)); |
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} else { |
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$key2 = ""; |
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} |
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return "qry:" . $key1 . $key2; |
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} |
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public function getScalar($sql, $array = null) |
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{ |
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$this->dbDriver->getScalar($sql, $array); |
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} |
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public function getAllFields($tablename) |
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{ |
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$this->dbDriver->getAllFields($tablename); |
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} |
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public function execute($sql, $array = null) |
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{ |
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$this->dbDriver->execute($sql, $array); |
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} |
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public function beginTransaction() |
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{ |
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$this->dbDriver->beginTransaction(); |
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} |
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public function commitTransaction() |
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{ |
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$this->dbDriver->commitTransaction(); |
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} |
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public function rollbackTransaction() |
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{ |
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$this->dbDriver->rollbackTransaction(); |
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} |
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public function getDbConnection() |
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{ |
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$this->dbDriver->getDbConnection(); |
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} |
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public function setAttribute($name, $value) |
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{ |
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$this->dbDriver->setAttribute($name, $value); |
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} |
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public function getAttribute($name) |
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{ |
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$this->dbDriver->getAttribute($name); |
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} |
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public function executeAndGetId($sql, $array = null) |
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{ |
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$this->dbDriver->executeAndGetId($sql, $array); |
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} |
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public function getDbHelper() |
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{ |
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$this->dbDriver->getDbHelper(); |
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} |
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/** |
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* @return Uri |
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*/ |
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public function getUri() |
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{ |
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return $this->dbDriver->getUri(); |
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} |
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public function isSupportMultRowset() |
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{ |
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return $this->dbDriver->isSupportMultRowset(); |
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} |
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public function setSupportMultRowset($multipleRowSet) |
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{ |
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$this->dbDriver->setSupportMultRowset($multipleRowSet); |
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} |
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} |
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