From 139cdd60aa3ce7222e1f4405ec56221600ac4335 Mon Sep 17 00:00:00 2001
From: Marty Wallace <marty@martywallace.com>
Date: Sat, 7 Jan 2017 10:37:01 +1100
Subject: [PATCH] Don't overwrite the response body if a controller returns an
 empty value.

---
 composer.json               | 2 +-
 src/Tempest/Http/Router.php | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/composer.json b/composer.json
index 9d0a3a2..b03439c 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"name": "martywallace/tempest",
-	"version": "3.0.0",
+	"version": "3.0.1",
 	"description": "A tiny PHP framework.",
 	"homepage": "https://github.com/MartyWallace/Tempest",
 	"type": "library",
diff --git a/src/Tempest/Http/Router.php b/src/Tempest/Http/Router.php
index 88240bc..6660b21 100644
--- a/src/Tempest/Http/Router.php
+++ b/src/Tempest/Http/Router.php
@@ -90,7 +90,12 @@ public function dispatch() {
 				}
 
 				if ($respond) {
-					$this->_response->body = $this->instantiateAndCall($this->baseControllerNamespace . ltrim($this->_matched->controller, '\\'), $this->_request, $this->_response);
+					$controllerValue = $this->instantiateAndCall($this->baseControllerNamespace . ltrim($this->_matched->controller, '\\'), $this->_request, $this->_response);
+
+					if (!empty($controllerValue)) {
+						// If the controller returns a non-empty value, overwrite the response body with that value.
+						$this->_response->body = $controllerValue;
+					}
 				}
 			}