flask——新闻详情页,评论点赞

1.查出该新闻的所有评论
2.查出该用户所有点赞的评论
3.二者交集显示被用户点赞

@news_blu.route("/<int:news_id>")
@user_login_data
@click_list_data
def news_detail(news_id):
    # 显示新闻
    try:
        news = News.query.get(news_id)
    except Exception as e:
        current_app.logger.error(e)
        abort(404)
    if not news:
        abort(404)
    news.clicks +=1

    # 是否收藏
    iscollected = False
    if g.user:
        if news in g.user.collection_news:
            iscollected = True

    # 显示评论
    try:
        comments = Comment.query.filter(Comment.news_id == news_id).order_by(Comment.create_time.desc()).all()
    except Exception as e:
        current_app.logger.error(e)
        comments = []

    # 点赞功能显示------------------------------
    # 找出用户所有点赞的评论的ｉｄ
if g.user:
        comment_like_ids = [commentlike.comment_id for commentlike in CommentLike.query.filter(CommentLike.user_id == g.user.id).all()]
    else:
        comment_like_ids = []
    # 如果评论在用户点赞的评论中，那么显示点赞
    comment_list = []
    for comment in comments:
        com = comment.to_dict()
        com["is_like"] = False
        if g.user and comment.id in comment_like_ids:
            com["is_like"] = True
        comment_list.append(com)

    # 按接口返回数据
    data = {"news":news.to_dict(),
            "user_info":g.user.to_dict() if g.user else None,
            "clicks_list":g.clicks,
            "is_collected": iscollected,
            "comments": comment_list
            }
    return render_template("/news/detail.html", data=data)

 comment_like_ids = [commentlike.comment_id for commentlike in CommentLike.query.filter(CommentLike.user_id == g.user.id).all()]

找出用户点赞过的所有评论的id