from flask import Flask,render_template,request,redirect,url_for,session
from flask_sqlalchemy import SQLAlchemy
import config
from functools import wraps
from datetime import datetime
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)
userphone = db.Column(db.String(20),nullable=False)
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)
author_id = db.Column(db.Integer, db.ForeignKey('User.id'))
author = db.relationship('User', backref=db.backref('question'))
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',order_by=creat_time.desc))
author = db.relationship('User', backref=db.backref('comments'))
db.create_all()
@app.route('/')
def zhuye():
context={
'questions': Question.query.all()
}
return render_template('zhuye.html',**context)
@app.route('/detail/<question_id>')
def detail(question_id):
question = Question.query.filter(Question.id == question_id).first()
return render_template('detail.html', question=question)
return question_id
@app.route('/denglu/',methods=['GET','POST'])
def denglu():
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('zhuye'))
else:
return '密码错误！'
else:
return '不存在该用户名！'
@app.route('/zhuce/',methods=['GET','POST'])
def zhuce():
if request.method == 'GET':
return render_template('zhuce.html')
else:
username = request.form.get('username')
password = request.form.get('password')
userphone = request.form.get('userphone')
user = User.query.filter(User.username == username).first()
if user:
return 'username existed.'
else:
user1 = User(username=username, password=password, userphone=userphone,)
db.session.add(user1)
db.session.commit()
return redirect(url_for('denglu'))
#def loginFirst(func):
#@wraps(func)
# def wrapper(*args, **kwargs):
# if session.get('user'):
#return func(*args, **kwargs)
# else:
# return redirect(url_for('denglu'))
# return wrapper
@app.route('/question/',methods=['GET','POST'])
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('zhuye'))
@app.route('/comment/',methods=['POST'])
def comment():
detail = request.form.get('detail')
author_id = User.query.filter(User.username == session.get('user')).first().id
question_id = request.form.get('question_id')
comment = Comment(author_id=author_id,question_id=question_id,detail=detail)
db.session.add(comment)
db.session.commit()
return redirect(url_for('detail',question_id=question_id))
@app.context_processor
def mycontext():
username=session.get('user')
if username:
return {'username':username}
else:
return {}
@app.route('/logout/')
def logout():
session.clear()
return redirect(url_for('zhuye'))
if __name__ == '__main__':
app.run(debug=True)
py
