From ec4d451d7f904581e7271531a8fe73d4e170e759 Mon Sep 17 00:00:00 2001
From: Matias Griese <matias@kunena.org>
Date: Wed, 10 May 2017 11:34:23 +0300
Subject: [PATCH] Fix for PHP 5.5 support in ObjectCollectionTrait

---
 .../Grav/Framework/Object/ObjectCollectionTrait.php | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/system/src/Grav/Framework/Object/ObjectCollectionTrait.php b/system/src/Grav/Framework/Object/ObjectCollectionTrait.php
index 51e48061b..bcfa41408 100644
--- a/system/src/Grav/Framework/Object/ObjectCollectionTrait.php
+++ b/system/src/Grav/Framework/Object/ObjectCollectionTrait.php
@@ -14,12 +14,6 @@ namespace Grav\Framework\Object;
  */
 trait ObjectCollectionTrait
 {
-    /**
-     * @param array $elements
-     * @return static
-     */
-    abstract public function createFrom(array $elements);
-
     /**
      * Create a copy from this collection by cloning all objects in the collection.
      *
@@ -32,7 +26,12 @@ trait ObjectCollectionTrait
             $list[$key] = is_object($value) ? clone $value : $value;
         }
 
-        return $this->createFrom($list);
+        if (method_exists($this, 'createFrom')) {
+            return $this->createFrom($list);
+        } else {
+            // TODO: remove when PHP 5.6 is minimum (with doctrine/collections v1.4).
+            return new static($list);
+        }
     }
 
     /**