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']) @loginFirst def comment(): detail=request.form.get('detail') author_id = User.query.filter(User.username == session.get('user')).first().id question_id = request.form.get('question_id') comment = Comment(author_id=author_id,question_id=question_id,detail=detail) db.session.add(comment) # 保存到数据库 db.session.commit() # 提交 return redirect(url_for('detail',question_id=question_id))
2.用<input type="hidden" 方法获取前端的"question_id"
3.显示评论次数
4.要求评论前登录
5.尝试实现详情页面下的评论列表显示
{% extends 'base.html' %} {% block title %}问答详情{% endblock %} {% block main %} <div class="page-header"> <h3>Title {{ ques.title }}<br><small>{{ ques.author.username }} <span class="badge">{{ ques.creat_time }}</span></small>></h3> </div> <p class="lead">detail{{ ques.detail }}</p> <hr> <form action="{{ url_for('comment') }}"method="post" style="..."> <div class="form-group"> <textarea name="new_comment" id="new-comment" class="form-control" rows="3" placeholder="write your comment"></textarea> <input type="hidden" name="question_id" value="{{ ques.id }}"> </div> <button type="submit" class="btn btn-default">发送</button> </form> <h4>评论:({{ ques.comments|length }})</h4>> <ul class="list-group" style="margin:10px"></ul>> {% endblock %}