can add relation between co-author

config/routes.rb

@@ -164,7 +164,6 @@ Orbit::Application.routes.draw do
   namespace :desktop do
    match "desktop" => "desktop#desktop"
     match '/journal_pages/get_journals_json' => 'journal_pages#get_journals_json'
-    match '/co_authors/get_co_authors_json' => 'co_authors#get_co_authors_json'
     match '/desktop'=>'desktop#desktop'
     match '/app_manager'=>'desktop#app_manager'
     match '/sections'=>'desktop#sections'
@@ -184,6 +183,7 @@ Orbit::Application.routes.draw do
     resources :journal_pages
     resources :journal_lists
     resources :co_authors
+    resources :co_author_relations
   end
 
   # namespace :desktop_publications do