class AWS::Record::Model::Scope

def _item_collection
  items = base_class.sdb_domain(_shard).items
  items = items.order(*@options[:order]) if @options[:order]
  items = items.limit(*@options[:limit]) if @options[:limit]
  @options[:where].each do |where_condition|
    items = items.where(*where_condition)
  end
  items
end