通过用户模型,对数据库进行增删改查操作
from flask import Flask, render_template from flask_sqlalchemy import SQLAlchemy import config 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()
增加:
db.session.add(user)
db.session.commit()
user = User(username = 'zhuyinyin',password='113428164508')
db.session.add(user)
db.session.commit()
查询:
User.query.filter(User.username == 'mis1114').first()
User.query.filter(User.username == 'zhuyinyin').first() print(user.username,user.password)
修改:
user.password = '111111'
db.session.commit()
user=User.query.filter(User.username =='zhuyinyin').first() user.password='123' print(user.username,user.password) db.session.commit()
删除:
db.session.delete(user)
db.session.commit()
user=User.query.filter(User.username =='zhuyinyin').first() db.session.delete(user) db.session.commit()