Checking if helpers are not registered before register to avoid overriding

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 };

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 };

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 };