From 46d32697e703b27234a96755d6fe74c4d2d3d32a Mon Sep 17 00:00:00 2001
From: Virendra Rajput <virendra.rajput567@gmail.com>
Date: Sun, 23 Jun 2013 20:46:49 +0530
Subject: [PATCH] added exists() method

This method will return a boolean value, whether the result for the query exists or not.
---
 mongoengine/queryset/queryset.py | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/mongoengine/queryset/queryset.py b/mongoengine/queryset/queryset.py
index ded8d5eb9..70e51b38c 100644
--- a/mongoengine/queryset/queryset.py
+++ b/mongoengine/queryset/queryset.py
@@ -132,6 +132,15 @@ def __len__(self):
 
         self._len = len(self._result_cache)
         return self._len
+        
+    def exists(self):
+        """
+            Returns a boolean whether the result exists or not
+        """
+        if self.__len__() != 0:
+            return True
+        else:
+            return False
 
     def __iter__(self):
         """Iteration utilises a results cache which iterates the cursor