On Mon, Jul 23, 2018 at 1:57 PM, Yingchen Zhang <cevin.che...@gmail.com> wrote:
> class User(db.Model):
> __tablename__ = 'users'
> id = db.Column(db.BigInteger, primary_key=True)
> name = db.Column(db.VARCHAR(50), nullable=False, unique=True)
> email = db.Column(db.VARCHAR(200), nullable=False)
>
> mobile = db.Column(db.VARCHAR(20))
>
> created_at = db.Column(db.TIMESTAMP(False), nullable=False,
> default=func.now())
>
> __table_args__ = (
> Index('idx_users_name', func.lower('name'), unique=True),
> Index('idx_users_email', func.lower('email'), unique=True)
> )
>
> def __init__(self):
> if not self.created_at:
> self.created_at = now()
>
> def __repr__(self):
> return '<User %s>' % self.name
>
>
> got a warning:
>
> UserWarning: autogenerate skipping functional index idx_users_email; not
> supported by SQLAlchemy reflection warnings.warn(msg)
> UserWarning: autogenerate skipping functional index idx_users_name; not
> supported by SQLAlchemy reflection warnings.warn(msg)
your code is correct. it sounds like you are attempting to use
autogenerate in Alembic to add these indexes in a new migration. you
have to specify them manually because autogenerate does not support
function-based indexes (e.g. the lower() function).
>
>
> --
> SQLAlchemy -
> The Python SQL Toolkit and Object Relational Mapper
>
> http://www.sqlalchemy.org/
>
> To post example code, please provide an MCVE: Minimal, Complete, and
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--
SQLAlchemy -
The Python SQL Toolkit and Object Relational Mapper
http://www.sqlalchemy.org/
To post example code, please provide an MCVE: Minimal, Complete, and Verifiable
Example. See http://stackoverflow.com/help/mcve for a full description.
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