SQLiteStorage: fixed transaction execution

Author: milo

src/Caching/Storages/SQLiteStorage.php

@@ -18,7 +18,7 @@
  */
 class SQLiteStorage extends Nette\Object implements Nette\Caching\IStorage
 {
-	/** @var PDO */
+	/** @var \PDO */
 	private $pdo;
 
 
@@ -29,7 +29,8 @@ public function __construct($path = ':memory:')
 		$this->pdo->exec('
 			PRAGMA foreign_keys = ON;
 			CREATE TABLE IF NOT EXISTS cache (
-				key BLOB NOT NULL PRIMARY KEY, data BLOB NOT NULL
+				key BLOB NOT NULL PRIMARY KEY,
+				data BLOB NOT NULL
 			);
 			CREATE TABLE IF NOT EXISTS tags (
 				key BLOB NOT NULL REFERENCES cache ON DELETE CASCADE,
@@ -75,7 +76,7 @@ public function lock($key)
 	 */
 	public function write($key, $data, array $dependencies)
 	{
-		$this->pdo->prepare('BEGIN TRANSACTION');
+		$this->pdo->exec('BEGIN TRANSACTION');
 		$this->pdo->prepare('REPLACE INTO cache (key, data) VALUES (?, ?)')
 			->execute(array($key, serialize($data)));
 
@@ -87,7 +88,7 @@ public function write($key, $data, array $dependencies)
 			$this->pdo->prepare('INSERT INTO tags (key, tag) SELECT ?, ?' . str_repeat('UNION SELECT ?, ?', count($arr) / 2 - 1))
 				->execute($arr);
 		}
-		$this->pdo->prepare('COMMIT');
+		$this->pdo->exec('COMMIT');
 	}