can update co-author relation

app/controllers/desktop/co_author_relations_controller.rb

@@ -10,6 +10,9 @@ class Desktop::CoAuthorRelationsController < ApplicationController
 
   def edit
     @co_author_relation = CoAuthorRelation.find(params[:id])
+    respond_to do |format|
+      format.html { render :layout => false}
+    end
   end
 
   def new

app/views/desktop/co_author_relations/edit.html.erb

@@ -1,3 +1,3 @@
-<%= form_for(@co_author_relations, url: desktop_co_author_relation_path(@co_author_relations), html:{"form-type"=>"ajax_form", "callback-method"=>"coauthorRelationForm"} ) do |f| %>
+<%= form_for(@co_author_relation, url: desktop_co_author_relation_path(@co_author_relation), html:{"form-type"=>"ajax_form", "callback-method"=>"coauthorRelationForm"} ) do |f| %>
   <%= render partial: 'desktop/co_author_relations/form' , locals: {:f => f}%>
 <% end %>