Flush cache on update

src/mibew/libs/classes/Mibew/Controller/UpdateController.php

@@ -94,7 +94,7 @@ class UpdateController extends AbstractController
     protected function getUpdater()
     {
         if (is_null($this->updater)) {
-            $this->updater = new Updater();
+            $this->updater = new Updater($this->getCache());
         }
 
         return $this->updater;

src/mibew/libs/classes/Mibew/Maintenance/Updater.php

@@ -20,6 +20,7 @@
 namespace Mibew\Maintenance;
 
 use Mibew\Database;
+use Stash\Interfaces\PoolInterface;
 
 /**
  * Encapsulates update process.
@@ -52,6 +53,23 @@ class Updater
      */
     protected $log = array();
 
+    /**
+     * An instance of cache pool.
+     *
+     * @var PoolInterface|null
+     */
+    protected $cache = null;
+
+    /**
+     * Class constructor.
+     *
+     * @param PoolInterface $cache An instance of cache pool.
+     */
+    public function __construct(PoolInterface $cache)
+    {
+        $this->cache = $cache;
+    }
+
     /**
      * Retuns list of all errors that took place during update process.
      *
@@ -153,6 +171,9 @@ class Updater
             return false;
         }
 
+        // Clean up the cache
+        $this->cache->flush();
+
         return true;
     }