todo待办事项flask小demo

from flask import Flask, render_template, request, redirect from flask_sqlalchemy import SQLAlchemy from datetime import datetime from flask_moment import Moment app = Flask(__name__) app.config["SQLALCHEMY_DATABASE_URI"] = "sqlite:///todo.db" db = SQLAlchemy(app) moment = Moment(app) class Todo(db.Model): sno = db.Column(db.Integer, primary_key=True) title = db.Column(db.String(200), nullable=False) description = db.Column(db.String(500), nullable=False) time = db.Column(db.DateTime, nullable=False) @app.route('/', methods=['GET', 'POST']) def main(): if request.method == 'POST': todo_title = request.form['title'] todo_description = request.form['description'] todo_time = datetime.utcnow() data = Todo(title=todo_title, description=todo_description, time=todo_time) db.session.add(data) db.session.commit() return redirect("/") alltodo = Todo.query.all() return render_template("todo.html", alltodo=alltodo) @app.route('/update/<int:sno>', methods=['GET', 'POST']) def update(sno): if request.method == 'POST': todo_title = request.form['title'] todo_description = request.form['description'] data = Todo.query.filter_by(sno=sno).first() data.title = todo_title data.description = todo_description db.session.commit() return redirect("/") todo = Todo.query.filter_by(sno=sno).first() return render_template("todo_update.html", todo=todo) @app.route('/delete/<int:sno>') def delete(sno): todo = Todo.query.filter_by(sno=sno).first() db.session.delete(todo) db.session.commit() return redirect("/") if __name__ == "__main__": app.debug = True app.run(host='127.0.0.1', port=8000)