This topic created in 5253 days ago, the information mentioned may be changed or developed.
from flaskext.sqlalchemy import SQLAlchemy
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///models.db'
db = SQLAlchemy() #把这两行换成 db = SQLAlchemy(app)就正确了
db.init_app(app)
class Role(db.Model):
...
有这样的错误。。 为什么呢
raise RuntimeError('application not registered on db '
RuntimeError: application not registered on db instance and no application bound to current context
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///models.db'
db = SQLAlchemy() #把这两行换成 db = SQLAlchemy(app)就正确了
db.init_app(app)
class Role(db.Model):
...
有这样的错误。。 为什么呢
raise RuntimeError('application not registered on db '
RuntimeError: application not registered on db instance and no application bound to current context
1 replies • 2017-05-28 13:59:48 +08:00
 |
1
swcsend May 28, 2017
可以参考这个 StackOverflow 的回答
https://stackoverflow.com/questions/19437883/when-scattering-flask-models-runtimeerror-application-not-registered-on-db-w/19438054#19438054 简单说就是和 flask 的 app context 有关系 |
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