标签：conf turn nbsp template 技术 flask logout contex fun
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) creatTime=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() @app.route(‘/‘) def home(): context={ ‘question‘: Question.query.all() } return render_template(‘shouye.html‘,**context) @app.route(‘/question_detail/‘) def question_detail(): return render_template(‘question_detail.html‘) @app.route(‘/sign_in/‘,methods=[‘GET‘,‘POST‘]) def sign_in(): if request.method == ‘GET‘: return render_template(‘denglu1.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 ‘title 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‘))) if __name__ == ‘__main__‘: app.run(debug=True)
{% extends‘base.html‘ %} {% block title %} Home {% endblock %} {% block head %} <link rel="stylesheet" href="{{ url_for(‘static‘,filename=‘css/shouye.css‘)}}" type="text/css"> {% endblock %} {% block main %} <body> <br> {#<img id="pig" src="../static/images/pig.jpg">#} <ul class="comment"> <img class="comment_pic" src="../static/images/comment.png"> <p class="wenzi">Question</p> {% for foo in question %} <li class="detail"> <span class="icon" aria-hidden="true"><img src="../static/images/icon.jpg"></span> <a href="#" style="float: left;margin:3px auto; line-height:12px;">{{ foo.author.username }}</a> <span class="badge">{{ foo.creatTime }}</span> <br><hr> <a href="{{ url_for(‘question_detail‘) }}" class="title"> {{ foo.title }}</a> <p class="neirong"> {{ foo.detail }}</p> </li> {% endfor %} </ul> </body> {% endblock %}
{% extends‘base.html‘ %} {% block title %} Home {% endblock %} {% block head %} <link rel="stylesheet" href="{{ url_for(‘static‘,filename=‘css/question_detail.css‘)}}" type="text/css"> {% endblock %} {% block main %} <body> <div class="detail"> <div class="detail_left"> <h2>title</h2> <a>username</a> <span class="badge">creatTime</span> <hr> <a>detail</a> <hr> <textarea name=‘comment‘ class="form-control" rows="8" id="questionDetail"></textarea> <br><button class="btn-default">发布</button> <p>评论：</p> <li class="comment"> <span class="icon" aria-hidden="true"><img src="../static/images/icon.jpg"></span> <a href="#" style="float: left;margin:3px auto; line-height:12px;">username</a> <span class="badge2">creatTime</span> <br><hr> <p class="neirong">detail</p> </li> <li class="comment"> <span class="icon" aria-hidden="true"><img src="../static/images/icon.jpg"></span> <a href="#" style="float: left;margin:3px auto; line-height:12px;">username</a> <span class="badge2">creatTime</span> <br><hr> <p class="neirong">detail</p> </li> </div> </div> </body> {% endblock %}
标签：conf turn nbsp template 技术 flask logout contex fun
原文地址：http://www.cnblogs.com/lkm123/p/7989553.html
