Natural Alphabetization of Product drive oarticipants

app/controllers/product_drives_controller.rb

@@ -15,7 +15,9 @@ def index
     @paginated_product_drives = @product_drives.page(params[:page])
 
     # to be used in the name filter to sort product drives in alpha order
-    @product_drives_alphabetical = @product_drives.sort_by { |pd| pd.name.downcase }
+    @product_drives_alphabetical = @product_drives.to_a.sort_by do |pd|
+      pd.name.downcase.split(/(\d+)/).map { |chunk| chunk.match?(/^\d+$/) ? chunk.to_i : chunk }
+    end
     @item_categories = current_organization.item_categories
     @selected_name_filter = filter_params[:by_name]
     @selected_item_category = filter_params[:by_item_category_id]