Refs #36892 - improvements to regex & index layout

app/controllers/api/v2/base_controller.rb

@@ -47,7 +47,7 @@ class BaseController < Api::BaseController
       layout 'api/v2/layouts/index_layout', :only => :index
 
       helper_method :root_node_name, :metadata_total, :metadata_subtotal, :metadata_search,
-        :metadata_order, :metadata_by, :metadata_page, :metadata_per_page, :index_node_permissions
+        :metadata_order, :metadata_by, :metadata_page, :metadata_per_page, :index_node_permissions_snippet
       def root_node_name
         @root_node_name ||= if Rabl.configuration.use_controller_name_as_json_root
                               controller_name.split('/').last
@@ -61,10 +61,16 @@ def root_node_name
       def index_node_permissions
         {
           :can_create => can_create?,
-          :can_edit => authorized_for(:controller => controller_name, :action => 'edit')
+          :can_edit => authorized_for(:controller => controller_name, :action => 'edit'),
         }
       end
 
+      def index_node_permissions_snippet
+        # Remove the characters '{' from the beginning and '}' from the end of the string
+        # The {1}'s are to only remove one character from each end.
+        index_node_permissions.to_json.gsub(/\A{{1}|}{1}\z/, '')
+      end
+
       def metadata_total
         @total ||= resource_scope.try(:size).to_i
       end

app/views/api/v2/layouts/index_layout.json.erb

@@ -5,7 +5,7 @@
   "per_page": <%= metadata_per_page.to_json %>,
   "search": <%= metadata_search.to_json.html_safe %>,
 <% if params.has_key?(:include_permissions) %>
-  <%= index_node_permissions.to_json.gsub(/[{}]/,'').html_safe %>,
+  <%= index_node_permissions_snippet.html_safe %>,
 <% end %>
   "sort": {
     "by": <%= metadata_by.to_json.html_safe %>,