- 定义评论的视图函数
@app.route('/comment/',methods=['POST'])
def comment():
读取页面数据,保存到数据库中。
@app.route('/comment/', methods=['POST']) @loginFrist def comment(): comment_detail = request.form.get('new_comment') quest_id = request.form.get('question_id') author_id = User.query.filter(User.username == session.get('user')).first().id comment = Comment(detail=comment_detail, author_id=author_id, question_id=quest_id, ) db.session.add(comment) db.session.commit() return redirect(url_for('detail', question_id=quest_id))
- 用<input type="hidden" 方法获取前端的"question_id"
detail.html
<form role="form" action="{{ url_for('comment') }}" method="post"> <div class="form-group"> <label for="exampleInputEmail1">Write down your answer~~</label> <textarea class="form-control" id="exampleInputEmail1" name="new_comment"></textarea> <input type="hidden" name="question_id" value="{{ quest.id }}"> </div> <button type="submit" class="btn btn-default">Submit</button> </form>
- 显示评论次数
<h4>评论:({{ quest.comments|length }})</h4>
- 要求评论前登录
# 装饰器 def loginFrist(func): @wraps(func) def wrapper(*args, **kwargs): if session.get('user'): return func(*args, **kwargs) else: return redirect(url_for('login')) return wrapper
- 尝试实现详情页面下的评论列表显示