regionify.rb

def assemble_ii(item)
    match = item.class.to_s.match('Inventory([0-9]+)')[1]
    if match == "05"
      region = "-#{match}"
    else
      region = ""
    end

    @ii = {
      key: item.upc,
      source: item.warehouse + region, # have to do above for this
      quantities: []
    }
  end
  
  def ii_changed?(item)
    match = item.class.to_s.match('Inventory([0-9]+)')[1]
    if match == "05"
      region = "-#{match}"
    else
      region = ""
    end

    @ii[:key] != item.upc || @ii[:source] != item.warehouse + region
  end