Hi,
I'm reading the Essential SQLAlchemy book from O'Reilly. It explains
SqlAlch 0.4 but my current version is 0.7 and there are some
differences.
Here is an example from the book:
user_table = Table('tf_user', metadata,
Column('id', Integer, primary_key=True),
Column('user_name', Unicode(16), unique=True, nullable=False),
Column('password', Unicode(40), nullable=False),
Column('display_name', Unicode(255), default=''),
Column('created', DateTime, default=datetime.now)
)
Here I get the following warning:
SAWarning: Unicode column received non-unicode default value.
Column('display_name', Unicode(255), default=''),
Changing Unicode(255) to String(255) makes the warning disappear but
I'm not sure if it's the correct solution.
For table names, the book uses the prefix convention 'tf_' but what
does it mean? 't' is table, but what is 'f'?
Thanks,
Laszlo
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