先安装flask-sqlalchemy、flask-migrate
导入
from flask_sqlalchemy import SQLAlchemy
db=SQLAlchemy()
encoding:utf-8
from flask_script import Manager
from flask_migrate import Migrate,MigrateCommand
from app import create_app
from exts import db
from myApp.models import *
app =create_app(name)
migrate=Migrate(app,db)
manager=Manager(app)
manager.add_command(“db”,MigrateCommand)
if name == ‘main’:
manager.run()
模型在此所示：
在Terminal执行：
python manage.py db init
#创建迁移文件存储目录
python manage.py db migrate
#生成迁移文件
python manage.py db upgrate
#z执行迁移