def sticker_placements=(user_placements)
      user_placements.each do |user_id, placements|
        listener(user_id).attributes = {'placements' => placements}
      end
    end
def sticker_placements=(user_placements)
      user_placements.each do |user_id, placements|
        listener(user_id).attributes = {'placements' => placements}
      end
    end
Sets the sticker placements for each dj