From eac1d0b16fc1838c97a83b33ad0eb3be673c06f9 Mon Sep 17 00:00:00 2001
From: Valentin <vintsukevich@gmail.com>
Date: Sun, 15 Jan 2017 23:33:54 +0300
Subject: [PATCH] Ref

---
 src/Metadata.php | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/src/Metadata.php b/src/Metadata.php
index fc0ef7e..979b719 100644
--- a/src/Metadata.php
+++ b/src/Metadata.php
@@ -47,14 +47,10 @@ public function fetch(
         callable $valueCallback = null
     ) {
         $output = [];
+        $decoded = $input->getDecoded();
 
         foreach ($keys as $key) {
-            $fetched = $this->utils->fetchKeys(
-                $input->getDecoded(),
-                $this->config->getAliases($key)
-            );
-
-            foreach ($fetched as $name => $value) {
+            foreach ($this->getKeyValues($decoded, $key) as $name => $value) {
                 //Get first not-empty value.
                 if (!empty($value)) {
                     if (!empty($keyCallback)) {
@@ -74,4 +70,14 @@ public function fetch(
 
         return $output;
     }
+
+    /**
+     * @param array  $data
+     * @param string $key
+     * @return array
+     */
+    protected function getKeyValues(array $data, $key)
+    {
+        return $this->utils->fetchKeys($data, $this->config->getAliases($key));
+    }
 }
\ No newline at end of file