From 1045a57fc877d529579c5121059f20699482f1dc Mon Sep 17 00:00:00 2001
From: Chris Chabot <chabotc@apache.org>
Date: Mon, 11 May 2009 11:08:49 +0000
Subject: [PATCH] Fixed a small issue when data pipelining == null on proxied
 content views

git-svn-id: https://svn.apache.org/repos/asf/incubator/shindig/trunk@773523 13f79535-47bb-0310-9956-ffa450edef68
---
 php/src/gadgets/templates/DataPipelining.php | 32 +++++++++++++++-------------
 1 file changed, 17 insertions(+), 15 deletions(-)

diff --git a/php/src/gadgets/templates/DataPipelining.php b/php/src/gadgets/templates/DataPipelining.php
index 8e327242..9f9ff0f0 100644
--- a/php/src/gadgets/templates/DataPipelining.php
+++ b/php/src/gadgets/templates/DataPipelining.php
@@ -76,23 +76,25 @@ class DataPipelining {
    */
   static public function fetch($dataPipeliningRequests, GadgetContext $context, $dataContext = array()) {
     $result = array();
-    do {
-      // See which requests we can batch together, that either don't use dynamic tags or who's tags are resolvable
-      $requestQueue = array();
-      foreach ($dataPipeliningRequests as $key => $request) {
-        if (($resolved = self::resolveRequest($request, $result)) !== false) {
-          $requestQueue[] = $resolved;
-          unset($dataPipeliningRequests[$key]);
+    if (is_array($dataPipeliningRequests) && count($dataPipeliningRequests)) {
+      do {
+        // See which requests we can batch together, that either don't use dynamic tags or who's tags are resolvable
+        $requestQueue = array();
+        foreach ($dataPipeliningRequests as $key => $request) {
+          if (($resolved = self::resolveRequest($request, $result)) !== false) {
+            $requestQueue[] = $resolved;
+            unset($dataPipeliningRequests[$key]);
+          }
         }
-      }
-      if (count($requestQueue)) {
-        $returnedResults = self::performRequests($requestQueue, $context);
-        if (is_array($returnedResults)) {
-          $dataContext = self::addResultToContext($returnedResults, $dataContext);
-          $result = array_merge($returnedResults, $result);
+        if (count($requestQueue)) {
+          $returnedResults = self::performRequests($requestQueue, $context);
+          if (is_array($returnedResults)) {
+            $dataContext = self::addResultToContext($returnedResults, $dataContext);
+            $result = array_merge($returnedResults, $result);
+          }
         }
-      }
-    } while (count($requestQueue));
+      } while (count($requestQueue));
+    }
     return $result;
   }
 
-- 
2.11.4.GIT