add back buton in relation page

app/controllers/desktop/co_author_relations_controller.rb

@@ -16,18 +16,18 @@ class Desktop::CoAuthorRelationsController < ApplicationController
   end
 
   def new
-    @new_relation = CoAuthorRelation.new
+    @co_author_relation = CoAuthorRelation.new
   end
 
   def create
-    @new_relation = CoAuthorRelation.new(params[:co_author_relation])
+    @co_author_relation = CoAuthorRelation.new(params[:co_author_relation])
     @co_author_relations = CoAuthorRelation.all
 
-    if @new_relation.save
+    if @co_author_relation.save
       newv = render_to_string partial: "show_form", object: @co_author_relations
       render json: {success: true, msg: "New Relation successfully saved!", newvalue: newv}.to_json
     else
-      error_msg = @new_relation.errors.full_messages.join("<br />")
+      error_msg = @co_author_relation.errors.full_messages.join("<br />")
       render json: {success: false, msg: error_msg}.to_json
     end
   end