Application Non enregistré Erreur avec flask-agité

Question

J'ai essayé de faire fonctionner le code sur https://github.com/graup/flask-restless-security pendant un moment. Après avoir échoué à intégrer cela dans mon propre code, j'ai décidé de simplement utiliser ce code préparé. Cependant quand j'essaye d'exécuter server.py il soulève l'erreur ci-dessous. L'origine de l'erreur est l'apimanager du ballon-agité. J'ai ouvert un problème sur git mais apparemment le projet n'est plus maintenu. Comment puis-je faire ce travail?

Traceback (most recent call last): 
File "E:/WEB/Project1/app/server.py", line 62, in 
include_columns=['id', 'data1', 'data2', 'user_id']) 
File "E:\WEB\Project1\flask\lib\site-packages\flask_restless\manager.py", line 698, in create_api 
blueprint = self.create_api_blueprint(app=app, *args, **kw) 
File "E:\WEB\Project1\flask\lib\site-packages\flask_restless\manager.py", line 566, in create_api_blueprint 
pk_name = primary_key or primary_key_name(model) 
File "E:\WEB\Project1\flask\lib\site-packages\flask_restless\helpers.py", line 232, in primary_key_name 
pk_names = primary_key_names(model) 
File "E:\WEB\Project1\flask\lib\site-packages\flask_restless\helpers.py", line 214, in primary_key_names 
return [key for key, field in inspect.getmembers(model) 
File "c:\python27\Lib\inspect.py", line 252, in getmembers 
value = getattr(object, key) 
File "E:\WEB\Project1\flask\lib\site-packages\flask_sqlalchemy_init_.py", line 498, in get 
return type.query_class(mapper, session=self.sa.session()) 
File "E:\WEB\Project1\flask\lib\site-packages\sqlalchemy\orm\scoping.py", line 78, in call 
return self.registry() 
File "E:\WEB\Project1\flask\lib\site-packages\sqlalchemy\util_collections.py", line 990, in call 
return self.registry.setdefault(key, self.createfunc()) 
File "E:\WEB\Project1\flask\lib\site-packages\sqlalchemy\orm\session.py", line 2829, in call 
return self.class_(**local_kw) 
File "E:\WEB\Project1\flask\lib\site-packages\flask_sqlalchemy_init_.py", line 143, in init 
self.app = app = db.get_app() 
File "E:\WEB\Project1\flask\lib\site-packages\flask_sqlalchemy_init_.py", line 957, in get_app 
'application not registered on db instance and no application' 
RuntimeError: application not registered on db instance and no applicationbound to current context 

server.py

from database import db 
from application import app 
from flask_restless import APIManager 
from models import SomeStuff 

apimanager = APIManager(app, flask_sqlalchemy_db=db) 
apimanager.create_api(SomeStuff, 
    methods=['GET', 'POST', 'DELETE', 'PUT'], 
    url_prefix='/api/v1', 
    collection_name='free_stuff', 
    include_columns=['id', 'data1', 'data2', 'user_id']) 

application.py

from flask import Flask 

app = Flask(__name__) 
app.config.from_object('config.DevelopmentConfig') 

database.py

from flask_sqlalchemy import SQLAlchemy 
db = SQLAlchemy() 

models.py

from database import db 
from flask_security import UserMixin, RoleMixin, SQLAlchemyUserDatastore 

class SomeStuff(db.Model): 
    __tablename__ = 'somestuff' 
    id = db.Column(db.Integer, primary_key=True) 
    data1 = db.Column(db.Integer) 
    data2 = db.Column(db.String(10)) 
    user_id = db.Column(db.Integer, db.ForeignKey('user.id'), nullable=True) 
    user = db.relationship(User, lazy='joined', join_depth=1, viewonly=True) 

Answer 1

L'erreur que vous avez maintenant:

flask_sqlalchemy_init_.py RuntimeError: application not registered on db instance and no applicationbound to current context

est à usage flask_sqlalchemy, qui définissent pas une instance app.

La solution est enregistrer l'application sur db instance.

from flask_sqlalchemy import SQLAlchemy 
from application import app 

db = SQLAlchemy(app)