flask_migrate 在使用falsk_sqlalchemy时，采用db.create_all在后期修改数据库表字段的时候，不会自动的映射到数据库中，必须删除表， 然后重新运行db.create_all 才会重新映射。这样不符合我们的要求，因此flask-migrate就是为了解决 ...
...ager #这是一个做脚本调式的库，有时间我也会总结 from flask_migrate import Migrate,MigrateCommand app = Flask(__name__) app.config.from_envvar(config.py) db = SQLAlchemy(app) migrate = Migrate(app, db) manager =...
...建一个manage.py，代码如下： from flask_script import Manager from flask_migrate import Migrate, MigrateCommand from HarpQA import app, db from models import Users, Questions, Comments manager = Manager(app...
...一个关于数据库迁移的文件，基础代码如下 # manage.py from flask_migrate import MigrateCommand, Migrate from flask_script import Shell,Manager from todo_models import app,db,User,Department,Todo manager = Manager(app) ...
...作。flask db指令不能直接使用，需要获取Migrate实例。 from flask_migrate import Migrate migrate = Migrate(app, db) 环境 通过FLASK_ENV变量设置Flask应用的运行环境。可选值包括production(默认)和development。如果设置为development，flask命令将激活debug...
...ms.validators import Required from flask_sqlalchemy import SQLAlchemy from flask_migrate import Migrate, MigrateCommand from flask_mail import Mail, Message basedir = os.path.abspath(os.path.dirna...
...直接去数据库生成也可以的 from flask_script import Manager from flask_migrate import Migrate, MigrateCommand from apps import create_app #app.config.from_object(app.config) # configuration # SQLALCHEMY_DATABA...
...o from app.models import User from flask_script import Manager, Shell from flask_migrate import Migrate, MigrateCommand app = create_app(os.getenv(FLASK_CONFIG) or default) manager = Manager(app=...
...p install flask-migrate pip install flask-script 使用 (1) 实例化 from flask_migrate import Migrate,MigrateCommand from flask_sqlalchemy import SQLalchemy app = Flask(__name__) db = SQLalchemy(app) migra...
...定模板和静态资源的路径 # 2.以后的一些Flask插件，比如Flask_migrate,Flask_SQLAlchemy报错的话，哪么Flask就会通过这个参数找到具体的报错位置 app = Flask(__name__) # @app.route()是一个装饰器，将对应的/路径应用到hello_world()这个函数上...
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