完成评论功能

1.定义评论的视图函数
@app.route('/comment/',methods=['POST'])
def comment()：
读取前端页面数据，保存到数据库中

@app.route('/comment/', methods=['POST'])
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))

 

2.用<input type="hidden" 方法获取前端的"question_id" 

<input name="question_id" type="hidden" value="{{ ques.id }}">

 

3.显示评论次数

 <span class="tcomment">评论：({{ ques.comments|length }})</span>

 

4.要求评论前登录

@app.route('/comment/', methods=['POST'])
@loginFirst
def comment():

 

5.尝试实现详情页面下的评论列表显示

<ul class="list-group">
       {% for com in comment %}
         <li ><a href="#">{{ com.author.username }}</a>
                      <br>
         <span >{{ com.create_time }}</span>
         <p class="abstract">{{ com.detail }}</p>
                      </li>
        {% endfor %}
                  </ul>