- 显示所有评论
{% for foo in ques.comments %} - 所有评论排序
uquestion = db.relationship(‘Question‘, backref=db.backref(‘comments‘, order_by=creat_time.desc)) - 显示评论条数
{{ ques.comments|length }} - 完成个人中心
1.个人中心的页面布局（html文件及相应的样式文件）
2.定义视图函数def usercenter(user_id):
3.向前端页面传递参数
4.页面显示相应数据
发布的全部问答
发布的全部评论
个人信息
5.各个页面链接到个人中心
<!doctype html> <html lang="en"> <head> <style> .nav_ul li{ float: left; list-style: none; margin: 10px; border-bottom: outset; } </style> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>个人中心</title> </head> <body> <ul class="nav_ul"> <li role="presentation"><a href="#">全部提问</a></li> <li role="presentation"><a href="#">全部评论</a></li> <li role="presentation"><a href="#">个人信息</a></li> </ul> <div class="col-md-6 column "> <div class="page-header"> {% for foo in wenda %} <div class="panel panel-default"> <div class="panel-heading"> <h3 class="panel-title"> <a href="{{ url_for(‘detail‘,wenda_id=foo.id) }}">标题:{{ foo.title }}</a><br> </h3> <a href="{{ url_for(‘usercenter‘,user_id=foo.author_id) }}">作者：{{ foo.author.username }}</a> </div> <div class="panel-body"> <a href="#">内容:{{ foo.detail }}</a><br> </div> <div class="panel-footer"> <span class="badge" style="margin-left: 60%">{{ foo.creat_time }}发布时间</span> </div> </div> {% endfor %} </div> </div> <div class="col-md-6 column "> <div class="page-header"> {% for foo in comments %} <li class="list-group-item"> <a href="{{ url_for(‘usercenter‘,user_id=foo.author_id) }}">{{ foo.author.username }}</a> <span class="badge pull-right">{{ foo.create_time }}</span> <p>{{ foo.detail }}</p> <br> </li> </div> {% endfor %} </body> </html>
class Comment(db.Model): __tablename__ = ‘comment‘ id = db.Column(db.Integer, primary_key=True, autoincrement=True) title = db.Column(db.String(100), nullable=False) detail = db.Column(db.Text, nullable=False) creat_time = db.Column(db.DateTime, default=datetime.now) author_id = db.Column(db.Integer, db.ForeignKey(‘user.id‘)) wenda_id = db.Column(db.Integer,db.ForeignKey(‘wenda.id‘)) wenda = db.relationship(‘Wenda‘, backref=db.backref(‘comments‘, order_by=creat_time.desc)) author = db.relationship(‘User‘, backref=db.backref(‘comments‘))
@app.route(‘/usercenter/<user_id>‘) @loginFirst def usercenter(user_id): user = User.query.filter(Wenda.id == user_id).first() context={ ‘username‘:user.username, ‘wenda‘:user.wenda, ‘comments‘:user.comments } return render_template(‘usercenter.html‘,**context)
<a href="{{ url_for(‘usercenter‘,user_id=foo.author.id) }}">{{ foo.author.username }} 评论：({{ foo.comments|length }})</a>