flask_migrate

#manager.py   只放启动程序
# pip3 instll flask_script  pip3 install flask_migrate
from flask_script import Manager   #脚本启动程序
from flask_migrate import Migrate, MigrateCommand #迁移数据库

from app import create_app,db

my_app = create_app()

manager = Manager(my_app)

Migrate(my_app,db)
manager.add_command("db",MigrateCommand)

if __name__ == ‘__main__‘:
    manager.run()

#初始化迁移数据库命令

python manage.py db init # 初始化
python manage.py db migrate # 创建数据库相关迁移文件 == Django makemigrations
python manage.py db upgrade # 把数据库相关迁移文件提交到数据库生成数据 == Django migrate