从首页问答标题到问答详情页

    1. 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)
    2. 首页标题的标签做带参数的链接。
            {{ url_for('detail',question_id = foo.id) }}
      <body id="myBody">
          {% for foo in question %}
          <div id="list-container">
              <ul class="note">
                  <li>
                      <div class="content">
                          <div class="author">
                              <a class="nickname" target="_blank" href="{{ url_for("detail",question_id=foo.id) }}">{{ foo.author.username }}</a>
                              <span class="time">{{ foo.create_time }}</span>
                              </div>
                          </div>
                          <a class="title" target="_blank" href="{{ url_for("detail",question_id=foo.id) }}">标题:{{ foo.title }}</a>
                          <p class="abstract">详情:{{ foo.detail }}</p>
      
                  </li>
              </ul>
          </div>
           {% endfor %}

       

    3. 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 }}
    • <body bgcolor="#696969">
          <div class="">
              <small>{{ ques.author.username }}</small><br>
              <h3>{{ ques.title }}</h3><br>
              <span class="createtime">{{ ques.create_time }}</span>
              <p>{{ ques.detail }}</p>
      
              <form action="{{ url_for("comment") }}" method="post">
                  <p class="location">评论</p>
                  <textarea  style="width: 400px"  id="xiang" rows="10" name="detail1"></textarea><br>
                  <input  type="submit" value="发送" style="width:65px;height:25px;font-size:15px">
              </form>
          </div>
      
      </body>

       

             4.建立评论的对象关系映射:
             class Comment(db.Model):    __tablename__='comment'         
class Comment(db.Model):
    __tablename__ = "comment"
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    detail = db.Column(db.Text, nullable=False)
    create_time = db.Column(db.DateTime, default=datetime.now)
    author_id = db.Column(db.Integer, db.ForeignKey("user.id"))
    question_id=db.Column(db.Integer,db.ForeignKey("question.id"))
    author = db.relationship("User", backref=db.backref('comment'))
    question = db.relationship("Question",backref=db.backref("comment"))

                      5. 尝试实现发布评论。

posted @ 2017-12-06 21:01  100彭楚殷  阅读(72)  评论(0编辑  收藏  举报