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

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

@@ -1,2 +1,5 @@
+<% if not @co_author_relation.new_record? %>
+  <%= submit_tag "Cancel", :type => "button", class: "bt-cancel ini_input hp hh2 thmadm thmtxt" %>
+<% end %>
 <%= f.text_field :relation %>
 <%= f.submit "Save" %>

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

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