标签:string add auto rac option class user init 简单
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
from flask_migrate import Migrate, MigrateCommand
from flask_script import Manager
app = Flask(__name__)
app.config["SQLALCHEMY_DATABASE_URI"] = "mysql://root:root@127.0.0.1:3306/xxx"
app.config["SQLALCHEMY_TRACK_MODIFICATIONS"] = False
db = SQLAlchemy(app)
Migrate(app, db)
class User(db.Model):
__tablename__ = "user"
id = db.Column(db.Integer, primary_key=True, autoincrement=True)
username = db.Column(db.String(50), nullable=False)
age = db.Column(db.INTEGER, nullable=False)
manage = Manager(app)
manage.add_command("db", MigrateCommand)
if __name__ == ‘__main__‘:
manage.run()
运行数据库命令
# 初始化
python app.py db init
# 生成迁移文件
python app.py db migrate
# 执行迁移命令
python app.py db upgrade
from flask import Flask
from flask_script import Manager
manage = Manager(app=Flask(__name__))
@manage.command
def hello():
print("hello")
@manage.option("-u", "--username", dest="name")
def test(name):
print("name是%s" % name)
if __name__ == ‘__main__‘:
manage.run()
python app.py greet
# 这个命令会执行greet函数
python app.py test -u xxxx
# 这个命令会将xxxx参数传递到name变量
标签:string add auto rac option class user init 简单
原文地址:https://www.cnblogs.com/huameixiao/p/13408929.html