评论列表显示及排序，个人中心显示
- 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
from flask import Flask,render_template,request,redirect,url_for,session from flask_sqlalchemy import SQLAlchemy import config from datetime import datetime from functools import wraps app = Flask(__name__) app.config.from_object(config) db=SQLAlchemy(app) class User(db.Model): __tablename__ = 'User' id = db.Column(db.Integer,primary_key=True,autoincrement=True) username = db.Column(db.String(20),nullable=False) password = db.Column(db.String(20),nullable=False) db.create_all() class Question(db.Model): __tablename__ = 'Question' 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) authorID=db.Column(db.Integer,db.ForeignKey('User.id')) author=db.relationship('User',backref=db.backref('question')) db.create_all() class Comment(db.Model): __tablname__='comment' id = db.Column(db.Integer, primary_key=True, autoincrement=True) authorID = db.Column(db.Integer, db.ForeignKey('User.id')) questionID = 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('comment',order_by=creat_time.desc)) author = db.relationship('User', backref=db.backref('comment')) db.create_all() @app.route('/') def home(): context={ 'question': Question.query.all() } return render_template('shouye.html',**context) @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) @app.route('/sign_in/',methods=['GET','POST']) def sign_in(): if request.method == 'GET': return render_template('denglu.html') else: username = request.form.get('username') password = request.form.get('password') user = User.query.filter(User.username == username).first() if user: if user.password == password: session['user']=username session.permanent = True return redirect(url_for('home')) else: return 'password error' else: return 'username is not existed.' @app.route('/sign_up/',methods=['GET','POST']) def sign_up(): if request.method == 'GET': return render_template('zhuce.html') else: username = request.form.get('username') password = request.form.get('password') user = User.query.filter(User.username == username).first() if user: return 'username existed.' else: user1 = User(username=username, password=password) db.session.add(user1) db.session.commit() return redirect(url_for('home')) @app.context_processor def mycontext(): username=session.get('user') if username: return {'username':username} else: return {} @app.route('/logout/') #注销 def logout(): session.clear() return redirect(url_for('home')) def loginFirst(func): @wraps(func) def wrapper(*args,**kwargs): if session.get('user'): return func(*args, **kwargs) else: return redirect(url_for('sign_in')) return wrapper @app.route('/question/',methods=['GET','POST']) @loginFirst def question(): if request.method == 'GET': return render_template('question.html') else: title = request.form.get('title') detail = request.form.get('detail') authorID =User.query.filter(User.username == session.get('user')).first().id user = User.query.filter(User.username == session.get('user')).first() question = Question.query.filter(Question.title == title).first() if question: return 'question existed' else: questions = Question(title=title, detail=detail, authorID=authorID) questions.author = user db.session.add(questions) db.session.commit() return redirect(url_for(('home'))) @app.route('/comment/',methods=['GET','POST']) @loginFirst def comment(): if request.method == 'GET': return render_template('question_detail.html') else: detail = request.form.get('detail') author_id =User.query.filter(User.username == session.get('user')).first().id question_id=request.form.get('question_id') comments = Comment(detail=detail,author_id=author_id,question_id=question_id) db.session.add(comments) db.session.commit() return redirect(url_for('question_detail',question_id=question_id)) @app.route('/usercenter/<user_id>') @loginFirst def usercenter(user_id): user=User.query.filter(User.id==user_id).first() context={ 'username':user.username, 'question':user.question, 'comment':user.comment } return render_template('usercenter.html',**context) if __name__ == '__main__': app.run(debug=True)
{% extends'base.html' %} {% block title %} detail {% endblock %} {% block head %} <link rel="stylesheet" href="{{ url_for('static',filename='css/detail.css')}}" type="text/css"> {% endblock %} {% block main %} <body> <div class="detail"> <div class="detail_left"> <h2>{{ question.title }}</h2> <a class="username">{{ question.author.username }}</a> <span class="badge">{{ question.creat_time }}</span> <hr> <a style="white-space: pre-wrap" >{{ question.detail }}</a> <hr> <form action="{{ url_for('comment') }}" method="post"> <textarea name='detail' class="form-control" rows="6" id="questionDetail"></textarea> <br> <button class="btn-default">发布</button> <input name="question_id" value="{{ question.id }}" type="hidden" /> </form> <p class="comment_num"><img class="heart" src="../static/images/heart.png">[{{ question.comments|length }}]</p> <ul class="comment"> {% for foo in question.comments %} <span class="icon" aria-hidden="true"><img src="../static/images/icon.jpg"></span> <a href="{{url_for('usercenter',user_id=foo.author_id)}}" class="name">{{ foo.author.username }}</a> <span class="badge2">{{ foo.creat_time }}</span> <br> <p class="neirong">{{ foo.detail }}</p> {% endfor %} </ul> </div> </div> </body> {% endblock %}
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title> {% block title %} {% endblock %} Home</title> <link rel="stylesheet" href="{{ url_for('static',filename='css/base.css')}}"> <script src="{{ url_for('static',filename='js/base.js') }}"></script> <base target="_blank" /> {% block head %} {% endblock %} </head> <body id="myBody"> <nav class="nav"> <ul> <img id="me" src="../static/images/me.gif"> <a href="{{ url_for('home') }}" style="font-size: 23px ">首页</a> <a href="">下载</a> <a href="">新闻</a> <a href="{{ url_for('question') }}">发布问答</a> <a>?</a> <div> {% if user %} <a href="{{ url_for('usercenter',user_id = session.get('user_id')) }}" style="margin-right: -10px">{{session.get('user')}}</a> <a href="{{ url_for('sign_up') }}" >注册</a> {% else %} <a href="{{ url_for('sign_in') }}" style="margin-right: -10px">登录</a> <a href="{{ url_for('sign_up') }}" >注册</a> (% endif %} </div> <img id="on_off" onclick="mySwitch()" src="../static/images/bulbon.gif" > <div> {# <button type="submit" ></button>#} <input type="image" src="../static/images/search.gif" onmousemove="this.src='../static/images/search.gif'" /> <input type="text" name="search"PLACEHOLDER="输入要搜索的内容"> </div> </ul> </nav> {% block main %} <br class="br"> {% endblock %} <div class="copyright"> <a href="">联系我们·</a> <a href="">加入我们·</a> <a href="">品牌与徽标·</a> <a href="">帮助中心·</a> <a href="">合作伙伴</a> <br> <p>Copyright © 2017. Created by <a href="#" target="_blank">misaki</a></p> </div> </body> </html>
{% extends 'base.html' %} {% block title %}个人中心{% endblock %} {% block head %} <link rel="stylesheet" href="{{ url_for('static',filename='css/usercenter.css')}}" type="text/css"> {% endblock %} {% block main %} <div class="page-header"> <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{ username }}<br> <small>全部问答<span class="badge"></span></small> </h3> <ul class="list-group" style="margin: 10px"> {% for foo in question %} <li class="list-group-item"> <span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span> <a href="#">{{ foo.author.username }}</a> <span class="badge">{{ foo.creat_time }}</span> <p>{{ foo.detail }}</p> </li> {% endfor %} </ul> </div> <div class="page-header"> <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{ user }}<br> <small>全部评论<span class="badge"></span></small> </h3> <ul class="list-group" style="margin: 10px"> {% for foo in comments %} <li class="list-group-item"> <span class="glyphicon glyphicon-heart-empty" aria-hidden="true"></span> <a href="#">{{ foo.author.username }}</a> <span class="badge">{{ foo.creat_time }}</span> <p>{{ foo.detail }}</p> </li> {% endfor %} </ul> </div> <div class="page-header"> <h3><span class="glyphicon glyphicon-user" aria-hidden="true"></span>{{ user }}<br> <small>个人信息<span class="badge"></span></small> </h3> <ul class="list-group" style="margin: 10px"> <li class="list-group-item">用户：{{ username }}</li> <li class="list-group-item">编号：</li> <li class="list-group-item">昵称：</li> <li class="list-group-item">文章数：</li> </ul> </div> {% endblock %}
