adding session order and page to back link

app/helpers/debates_helper.rb

@@ -0,0 +1,10 @@
+module DebatesHelper
+  def return_query_params
+    hash = { order: session.delete(:return_order) }
+    hash.merge(page_hash) if session[:return_page]
+  end
+
+  def page_hash
+    { page: session.delete(:return_page) }
+  end
+end

app/views/debates/show.html.erb

@@ -3,7 +3,7 @@
     <div id="<%= dom_id(@debate) %>" class="row">
       <div class="small-12 medium-9 column">
         <i class="icon-angle-left left"></i>&nbsp;
-        <%= link_to t("debates.show.back_link"), debates_path, class: 'left back' %>
+        <%= link_to t("debates.show.back_link"), debates_path(return_query_params), class: 'left back' %>
 
         <% if current_user && @debate.editable_by?(current_user) %>
           <%= link_to edit_debate_path(@debate), class: 'edit-debate button success tiny radius right' do %>