table 'roles_users' is already defined for this MetaData instance

Question

hello iam trying to get a currnet_user information in my views

and i include from users.models import *

then in my code return return current_user;

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Answer 1

Its one year late but if someone doesn't find the solution in the given answers may be this can solve the problem -

I had this same problem with my class which was inherited from db.Model (of flask_sqlalchemy).

My code looked like this -

class MasterDB(db.Model):
    __tablename__ = 'masterdb'
    __table_args__ = {'schema': 'schema_any'}
    ...
    ...

Resolved it by specifying the abstract property to True in the class variable list. Add it in the class variable list like this and it should work -

class MasterDB(db.Model):
    __tablename__ = 'masterdb'
    __table_args__ = {'schema': 'schema_any'}
    __abstract__ = True