def show
    @post = Post.find(params[:id])
    @author = Author.find(@post.author_id)
    @votes = Vote.find_by(post_id: params[:id])
    @score = 0
    @votes.each do |vote|
      if vote.vote_type == 0
        @score += 1
      else
        @score -= 1
      end
    end
  end