From a8ee17dc716059bf87c45dbd4085fc5d7f691e11 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Elo=C3=ADzio=20Salgado?= <eloisalgado@gmail.com>
Date: Fri, 20 Jan 2017 10:54:22 -0200
Subject: [PATCH] Checking if helpers are not registered before register to
 avoid overriding

---
 Packages/ohif-viewerbase/client/lib/helpers/formatDA.js | 5 ++++-
 Packages/ohif-viewerbase/client/lib/helpers/formatPN.js | 6 +++++-
 Packages/ohif-viewerbase/client/lib/helpers/formatTM.js | 5 ++++-
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/Packages/ohif-viewerbase/client/lib/helpers/formatDA.js b/Packages/ohif-viewerbase/client/lib/helpers/formatDA.js
index 4f36a6a88..d516f510b 100644
--- a/Packages/ohif-viewerbase/client/lib/helpers/formatDA.js
+++ b/Packages/ohif-viewerbase/client/lib/helpers/formatDA.js
@@ -17,6 +17,9 @@ const formatDA = (context, format, options) => {
     return dateAsMoment.format(strFormat);
 };
 
-Blaze.registerHelper('formatDA', formatDA);
+// Check if global helper already exists to not override it
+if (!Blaze._getGlobalHelper('formatDA')) {
+  Blaze.registerHelper('formatDA', formatDA);
+}
 
 export { formatDA };
diff --git a/Packages/ohif-viewerbase/client/lib/helpers/formatPN.js b/Packages/ohif-viewerbase/client/lib/helpers/formatPN.js
index 3bbd1ac81..bc24b16d6 100644
--- a/Packages/ohif-viewerbase/client/lib/helpers/formatPN.js
+++ b/Packages/ohif-viewerbase/client/lib/helpers/formatPN.js
@@ -12,6 +12,10 @@ const formatPN = context => {
 /**
  * A global Blaze UI helper to format a patient name for display purposes
  */
-Blaze.registerHelper('formatPN', formatPN);
+
+// Check if global helper already exists to not override it
+if (!Blaze._getGlobalHelper('formatPN')) {
+    Blaze.registerHelper('formatPN', formatPN);
+}
 
 export { formatPN };
diff --git a/Packages/ohif-viewerbase/client/lib/helpers/formatTM.js b/Packages/ohif-viewerbase/client/lib/helpers/formatTM.js
index 3c11ee297..f81b5b980 100644
--- a/Packages/ohif-viewerbase/client/lib/helpers/formatTM.js
+++ b/Packages/ohif-viewerbase/client/lib/helpers/formatTM.js
@@ -27,6 +27,9 @@ const formatTM = (context, options) => {
     return dateTime.format(format);
 };
 
-Blaze.registerHelper('formatTM', formatTM);
+// Check if global helper already exists to not override it
+if (!Blaze._getGlobalHelper('formatTM')) {
+    Blaze.registerHelper('formatTM', formatTM);
+}
 
 export { formatTM };