From 3e26330c534b1784f023fd3b7bc4ef72cca3f422 Mon Sep 17 00:00:00 2001
From: Oliver Tischlinger <oliver.tischlinger@metabor.de>
Date: Wed, 23 Sep 2015 17:34:11 +0200
Subject: [PATCH] check if collection is empty without loading it

Actually isEmpty() is always loading the collection in LazyCriteriaCollection.
A lazy version should use the existing functionality of count() to check if there are no elements if the collection is not initialized.
---
 lib/Doctrine/ORM/LazyCriteriaCollection.php | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/lib/Doctrine/ORM/LazyCriteriaCollection.php b/lib/Doctrine/ORM/LazyCriteriaCollection.php
index 28e2709ac..876341c72 100644
--- a/lib/Doctrine/ORM/LazyCriteriaCollection.php
+++ b/lib/Doctrine/ORM/LazyCriteriaCollection.php
@@ -82,6 +82,20 @@ class LazyCriteriaCollection extends AbstractLazyCollection implements Selectabl
         return $this->count = $this->entityPersister->count($this->criteria);
     }
 
+    /**
+     * check if collection is empty without loading it
+     *
+     * @return boolean TRUE if the collection is empty, FALSE otherwise.
+     */
+    public function isEmpty()
+    {
+        if ($this->isInitialized()) {
+            return $this->collection->isEmpty();
+        }
+
+        return $this->count() == 0;
+    }
+
     /**
      * Do an optimized search of an element
      *