Seems that hierarchical error handling works..

TreeTable component seems to work too.
Edit is half-way through. Create / delete are TBD.

lib/helpers.js

@@ -24,7 +24,8 @@ module.exports = {
     filterCustomFields,
     getMjmlTemplate,
     rollbackAndReleaseConnection,
-    filterObject
+    filterObject,
+    enforce
 };
 
 function getDefaultMergeTags(callback) {
@@ -305,3 +306,10 @@ function filterObject(obj, allowedKeys) {
 
     return result;
 }
+
+function enforce(condition, message) {
+    console.log(condition);
+    if (!condition) {
+        throw new Error(message);
+    }
+}