从首页问答标题到问答详情页
Posted J芷璇
tags:
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- 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) - 首页标题的标签做带参数的链接。
{{ url_for(‘detail‘,question_id = foo.id) }} - 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 }} -
建立评论的对象关系映射：
class Comment(db.Model):
__tablename__=‘comment‘ -
尝试实现发布评论。
1.主PY文件写视图函数，带id参数。
@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。
{% extends‘base.html‘ %} {% block title %} 首页 {% endblock %} {% block head %} <link rel="stylesheet" href="{{ url_for(‘static‘,filename=‘css/index.css‘) }}" type="text/css"> {% endblock %} {% block main %} <body id="myBody"> <div class="indexone"> <ul class="list-group"> {% for foo in questions %} <li class="list-group-item"> <span class="glyphicon glyphicon-leaf" aria-hidden="true"></span> <a href="#" style="font-family: 幼圆">{{ foo.author.username }}</a><br> <a href="{{ url_for(‘detail‘,question_id = foo.id) }}" style="font-family: 幼圆">{{ foo.title }}</a><br> <span class="badge" style="font-family: 幼圆">{{ foo.creat_time }}</span><br> <p style="font-family: 幼圆;color: #002D54;">{{ foo.detail }}</p> <span class="glyphicon glyphicon-leaf" aria-hidden="true"></span> <div class="meta"> <a class="collection-tag"> <span style="font-family: 幼圆">社会热点</span> </a> <a class="collection-tag"> <span style="font-family: 幼圆"> 浏览： </span><span style="font-family: 幼圆;color: red"> 555 </span> </a> <a class="collection-tag"> <span style="font-family: 幼圆"> 评论： </span><span style="font-family: 幼圆;color: red"> 890 </span> </a> <span style="font-family: 幼圆"> 点赞： </span><span style="font-family: 幼圆;color: red"> 1234 </span> </div> </li> {% endfor %} </ul> </div> </body> </html> {% endblock %}
3.在详情页将数据的显示在恰当的位置。
{% extends‘base.html‘ %} {% block title %} 问答详情 {% endblock %} {% block head %} <link rel="stylesheet" href="{{ url_for(‘static‘,filename=‘css/detail.css‘) }}" type="text/css"> {% endblock %} {% block main %} <body id="myBody"> <div class="total"> <div class="page-header" style="text-align: left"> <h3>{{ ques.title }}<br> <small>作者：{{ ques.author.username }}   <span class="badge">{{ ques.creat_time }}</span> </small> </h3> </div> <hr> <p class="lead">{{ ques.detail }}</p> <hr> <form method="post" action="{{ url_for(‘comment‘) }}"> <div class="title" style="text-align: left"> <textarea class="form-control" rows="3" placeholder="请输入要发布的内容" name="detail"></textarea> </div> <button type="submit" id="fabu">发送</button> <h3 style="text-align: left">评论：({{ ques.comments|length }})</h3> <div class="basic_box" style="padding-bottom: 50px;"> <ul class="list-group" style="margin-bottom: 10px"> {% for foo in comments %} <li class="list-group-item" style="width: 800px"> <span class="glyphicon glyphicon-left" aria-hidden="true"></span> <br> <a href="#">{{ foo.author_id }}</a> <span class="badge">评论时间:{{ foo.creat_time }}</span> <p>{{ foo.detail }} </p> </li> {% endfor %} </ul> </div> </form> </div> </body> </html> {% endblock %}
4.建立评论的对象关系映射：
5.尝试实现发布评论。
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) creat_time = db.Column(db.DateTime, default=datetime.now) question = db.relationship(‘Question‘, backref=db.backref(‘comments‘)) author = db.relationship(‘User‘, backref=db.backref(‘comments‘))
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