flask_migrate 帮助我们做数据库的迁移,和Django中的很相似。
from crm import create_app,db
from flask_script import Manager
#做数据库的迁移
from flask_migrate import Migrate,MigrateCommand
app = create_app()
manager = Manager(app)
Migrate(app,db)
'''
数据库迁移命令：
python manage.py db init (只需要执行一遍) Django中
python manage.py db migrate ---> makemigration
python manage.py db upgrade ----> migrate
'''
manager.add_command('db',MigrateCommand)
if __name__ == "__main__":
# app.run()
manager.run()
