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从首页问答标题到问答详情页

时间:2017-12-07 19:37:30      阅读:600      评论:0      收藏:0      [点我收藏+]
  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) }}
    {% extends‘base.html‘ %}
        {% block title %}
        首页
        {% endblock %}
    {% block head %}
    
        <script src="{{url_for(‘static‘,filename=‘js/base.js‘) }}" type="text/javascript"></script>
        <link href="{{ url_for(‘static‘ ,filename=‘css/base.css‘) }}"  rel="stylesheet" type="text/css">
        {% endblock %}
        {% block main %}
    
        {% for foo in question %}
    <body id="myBody">
            <div id="linnnfeng">
           <ul class="list" >
                 <li>用户名:{{ foo.author.username }}</li>
              <a href="{{ url_for("detail",question_id=foo.id) }}">标题:{{ foo.title }}</a>
               <li class="">疑问:{{ foo.detail }}</li>
               <li class="">时间:{{ foo.time }}</li>
           </ul>
            </div>
        {% endfor %}
        <footer>
            <div class="footer_box">
                Copyright@2017-2027 个人版权,版权所有 作者:LinF telephone:0000-1234567 mobile phone:11111111111
            </div>
        </footer>
    {% endblock %}

     



  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 }}
    {% block main %}
        <ul class="list">
            <p class="title">{{ ques.title }}</p>
            <a href="usern">{{ ques.author.username }}</a>
            <p class="answer" style="text-indent: 18px">{{ ques.detail }}</p>
            <span class="badge">{{ ques.creat_time }}</span>
            <a href="a">回复</a>
            <div>
              <input id="fabu" name="comment" type="submit"   placeholder="请输入要发布的内容" >
            <form action="{{ url_for(‘comment‘) }}" method="post">
           <button>发送</button>
    
       </form>
        </div>
        </ul>
    
    {% endblock %}

     

  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)
        author_id = db.Column(db.Integer, db.ForeignKey(‘user.id‘))
        question_id = db.Column(db.Integer, db.ForeignKey(‘question.id‘))
        detail = db.Column(db.Text, nullable=False)
        create_time = db.Column(db.DateTime, default=datetime.now)
        question = db.relationship(‘Question‘, backref=db.backref(‘comments‘,order_by=create_time.desc))
        author = db.relationship(‘User‘, backref=db.backref(‘comments‘))

     

  5.  尝试实现发布评论。


    尝试成功

从首页问答标题到问答详情页

原文:http://www.cnblogs.com/linf/p/8000540.html

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