Alternative method of determining array depth

Author: joelwkent

src/services/builder.js

@@ -111,7 +111,7 @@ angular.module('schemaForm').provider('sfBuilder', ['sfPathProvider', function(s
                        '.condition, { model: model, "arrayIndex": $index})';
         if (args.form.key) {
           var strKey = sfPathProvider.stringify(args.form.key);
-          var arrayDepth = (args.path.split('.items[').length - 1);
+          var arrayDepth = args.form.key.filter(function(e) { return e === '' }).length;
           var arrayIndices = '$index';
           for (var i = 1; i < arrayDepth; i++) {
             arrayIndices = Array(i + 1).join('$parent.') + '$index,' + arrayIndices;