From e5611b7422c926b4af0fc518cbb51cee739e3745 Mon Sep 17 00:00:00 2001
From: Adam George <github@adamgeorge.com>
Date: Wed, 27 Nov 2013 16:27:34 +1100
Subject: [PATCH] Fixes issue where there is no expression to interpolate,
 therfore  was failing

---
 src/integration/option.js | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/src/integration/option.js b/src/integration/option.js
index 349bae3..1a38124 100644
--- a/src/integration/option.js
+++ b/src/integration/option.js
@@ -10,12 +10,17 @@
                     valueInterpolateFn = $interpolate(tElement.attr('value'), true);
                 }
                 return function (scope, iElement, iAttrs) {
-                    scope.$watch(textInterpolateFn, function () {
-                        iElement.trigger("$childrenChanged");
-                    });
-                    scope.$watch(valueInterpolateFn, function () {
-                        iElement.trigger("$childrenChanged");
-                    });
+                    if (textInterpolateFn != null) {
+                        scope.$watch(textInterpolateFn, function () {
+                            iElement.trigger("$childrenChanged");
+                        });
+                    }
+
+                    if (valueInterpolateFn != null) {
+                        scope.$watch(valueInterpolateFn, function () {
+                            iElement.trigger("$childrenChanged");
+                        });
+                    }
                 };
             }
         };