作用:做数据库迁移
依赖:
flask-script
flask-sqlalchemy
使用
项目结构
manage.py(其它文件内容与flask-sqlalchemy中一样)
from s8day130_pro import create_app,db from flask_script import Manager from flask_migrate import Migrate,MigrateCommand app = create_app() manager = Manager(app) Migrate(app, db) """ # 数据库迁移命名 python manage.py db init python manage.py db migrate # makemigrations python manage.py db upgrade # migrate """ manager.add_command('db', MigrateCommand) if __name__ == '__main__': # app.run() manager.run()
首先执行python manage.py db init会生成如下文件
然后就可以利用python manage.py db migrate和python manage.py db upgrade命令进行数据迁移了