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首页列表显示全部问答,完成问答详情页布局。

时间:2017-12-02 22:06:21      阅读:340      评论:0      收藏:0      [点我收藏+]

标签:conf   href   btn   hid   ret   http   注册   primary   rman   

1.首页列表显示全部问答:

      将数据库查询结果传递到前端页面 Question.query.all()

      前端页面循环显示整个列表。

      问答排序

2.完成问答详情页布局:

       包含问答的全部信息

        评论区

        以往评论列表显示区。

3.在首页点击问答标题,链接到相应详情页

 

<ul class="list-group">

    <li class="list-group-item" style="width: 800px">
      <span class="glyphicon glyphicon-left" aria-hidden="true"></span>
        <a  href="#" target="_blank">{{ user }}</a>
        <br>
         <a  href="#">{{ title }}</a>
     <span class="badge">{{time  }}</span>
              <p style="">{{ detail }}
    </p>
    </li>
     {% for foo in questions %}
         <li class="list-group-item" style="width: 800px">
      <span class="glyphicon glyphicon-left" aria-hidden="true"></span>
        <a  href="#" target="_blank">{{foo.author.username }}</a>
        <br>
         <a  href="{{ url_for(‘detail‘,question_id=foo.id)}}">{{ foo.title }}</a>
     <span class="badge">{{ foo.creat_time }}</span>
              <p style="">{{ foo.detail }}
    </p>
  {% endfor %}

<<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>发布</title>
    <link rel="stylesheet" href="http://cdn.static.runoob.com/libs/bootstrap/3.3.7/css/bootstrap.min.css">


</head>
<body>

<div class="container">
    <div class="row clearfix">
        <div class="col-md-2 column">
        </div>
        <div class="col-md-6 column">

            <p>
             <h3>标题</h3>
            </p>         
            <p>

            </p> <button type="button" class="btn btn-default">发送</button>
            <h1>评论</h1><br>
            <ul>

                <li class="list-group-item">评论1</li>
            </ul>
        </div>
        <div class="col-md-4 column">
        </div>
    </div>
</div>
</body>
from flask import Flask
from flask import request, render_template,redirect,url_for,session
from flask_sqlalchemy import SQLAlchemy
from functools import wraps
from datetime import  datetime

import config
app = Flask(__name__)
app.config.from_object(config)
db=SQLAlchemy(app)

# 创建用户列表
class User(db.Model):
    __tablename__=user
    id=db.Column(db.Integer,primary_key=TabError,autoincrement=True)
    username=db.Column(db.String(20),nullable=False)
    password=db.Column(db.String(20),nullable=False)
    nickname=db.Column(db.String(50))


class Question(db.Model):
    __table__name=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)
    create_time=db.Column(db.DateTime,default=datetime.now)
    author_id=db.Column(db.Integer,db.ForeignKey(user.id))
    author=db.relationship(User,backref=db.backref(question))

db.create_all()


# 数据添加测试
# user = User(username =‘vixx123‘,password=‘20120524‘ )
# db.session.add(user)
# db.session.commit()



# 链接到首页
@app.route(/)
def index():
    return render_template(index.html)

# 跳转登陆页面,登陆设置
@app.route(/login/,methods=[GET,POST])
def login():
    if request.method==GET:
        return render_template(login.html)
    else:
        usern = request.form.get(uname)
        passw = request.form.get(upass)
        user =User.query.filter(User.username == usern,User.password==passw).first()
        if user:
            session[user] = usern
            session.permanent = True
            return redirect(url_for(index))
        else:
            return upassword error


@app.context_processor
def mycontext():
    usern = session.get(user)
    if usern:
        return {username: usern}
    else:
        return {}

@app.route(/logout/)
def logout():
     session.clear()
     return redirect(url_for(index))

# 跳转注册页面,设置注册
@app.route(/regist/,methods=[GET,POST])
def regist():
    if request.method==GET:
        return render_template(regist.html)
    else:
        username = request.form.get(username)
        password = request.form.get(password)
        nickname = request.form.get(nickname)
        user =User.query.filter(User.username == username).first()
        if user:
            return  uusername existed
        else:
            user=User(username=username,password=password,nickname=nickname)
            db.session.add(user)   #数据库操作
            db.session.commit()
            return redirect(url_for(login))


def loginFirst(func):
    @wraps(func)
    def wrapper(*args,**kwargs):
        if session.get(user):
            return  func(*args,**kwargs)
        else:
            return  redirect(url_for(login))
    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)
        author_id=User.query.filter(User.username == session.get(user)).first().id
        question=Question(title=title,detail=detail,author_id=author_id)
        db.session.add(question)
        db.Session.commit()
        return redirect(url_for(index))

@app.route(/)
def index():
    context={
       
    }
    return render_template(index.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)




if __name__ == __main__:
    app.run(debug=True)

 

首页列表显示全部问答,完成问答详情页布局。

标签:conf   href   btn   hid   ret   http   注册   primary   rman   

原文地址:http://www.cnblogs.com/nigongbin/p/7955649.html

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