从首页问答标题到问答详情页

主PY文件写视图函数，带id参数。 

@app.route('/detail/<question_id>')
def detail(question_id):
    quest = 
    return render_template('detail.html', ques = quest)

@app.route('/detail/<question_id>')
def detail(question_id):
    quest = Question.query.filter(Question.id == question_id).first()
    return render_template('detail.html',ques=quest）

1. 首页标题的标签做带参数的链接。
         {{ url_for('detail',question_id = foo.id) }}
   
   
2. 在详情页将数据的显示在恰当的位置。 

   {{ ques.title}}
   {{ ques.id  }}{{  ques.creat_time }}

   {{ ques.author.username }} 
   {{ ques.detail }}

3. 建立评论的对象关系映射：

   class Comment(db.Model):
       __tablename__='comment'

4.  尝试实现发布评论

 

{% extends 'base.html' %}
{% block title %}
    问答详情
{% endblock %}
{% block main %}
   <div class="page-header">
         <h3>{{ques.title}} <br><small>{{ques.author.username}} <span class="badge">{{ques.create_time}}</span> </small></h3>
     </div>
     <p class="lead">{{ques.detail}}</p>
     <hr>

     <form action="{{url_for('comment')}}"  method="post" style="" >
     <textarea name="new_comment" class="form-control" rows="3" id="new-comment" 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>
{% endblock %}