Option delete items added to check_availability page

back-office/app/controllers/items_controller.rb

@@ -15,4 +15,20 @@ class ItemsController < ApplicationController
     @missing_from_database =  (@codes_to_check_array - items_to_check) || []
     @missing_from_codes = (items_to_check - @codes_to_check_array) || []
   end
+
+  def delete_items
+    @suppliers = Supplier.order(:name).all
+    @selected_supplier = Supplier.find_by_id(params[:supplier_id])
+    @items = @selected_supplier.try(:items) || []
+    @codes_to_check = params[:codes] || ""
+    @codes_to_check_array = @codes_to_check.split("\n").reject { |code| code.strip.blank? }.map(&:strip)
+    items_to_check = @items.map { |i| i.code.strip }
+
+    @items_for_delete = items_to_check & @codes_to_check_array
+    Item.where(:code => @items_for_delete).destroy_all
+
+    @not_deleted_items = (@codes_to_check_array - @items_for_delete) || []
+
+    render :template => "items/check_availability"
+  end
 end