标签：对象关系映射 对象 参数 author model span class com creat
1、主PY文件写视图函数，带id参数。
@app.route(‘/detail?<wenda_id>‘) def detail(wenda_id): wen = Wenda.query.filter(Wenda.id == wenda_id).first() return render_template(‘detail.html‘,wend=wen)
2、首页标题的标签做带参数的链接。
<a href="{{ url_for(‘detail‘,wenda_id = foo.id) }}">{{ foo.title }}</a>
3、在详情页将数据的显示在恰当的位置。
{% for foo in questions %}
<li class="list-group-item">
<span class="glyphicon glyphicon-leaf" aria-hidden="true"></span>
<a href="{{ url_for(‘detail‘,wenda_id = foo.id) }}">{{ foo.title }}</a>
<p style="">{{ foo.detail }}</p>
<span class="glyphicon glyphicon-user" aria-hidden="true"></span>
<a href="">{{ foo.author.username }}</a>
<span class="badge">{{ foo.creat_time }}</span>
</li>
{% endfor %}
4、建立评论的对象关系映射：
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(‘wenda.id‘)) creat_time = db.Column(db.DateTime,default=datetime.now) detail = db.Column(db.Text,nullable=False) question = db.relationship(‘Wenda‘,backref = db.backref(‘comments‘)) author = db.relationship(‘User‘,backref = db.backref(‘comments‘))
标签：对象关系映射 对象 参数 author model span class com creat
原文地址：http://www.cnblogs.com/guomeiting/p/7993359.html
