Original code copyright (C) 2009-2022 Rudolf Cardinal (firstname.lastname@example.org).
This file is part of cardinal_pythonlib.
Licensed under the Apache License, Version 2.0 (the “License”); you may not use this file except in compliance with the License. You may obtain a copy of the License at
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Class to refer to database tables either by name or by SQLAlchemy Table object.
TableIdentity(tablename: str = None, table: sqlalchemy.sql.schema.Table = None, metadata: sqlalchemy.sql.schema.MetaData = None)¶
Convenient way of passing around SQLAlchemy
Tableobjects when you might know either either its name or the
Initialize with either
table, not both.
- tablename – string name of the table
- table – SQLAlchemy
- metadata – optional
set_metadata(metadata: sqlalchemy.sql.schema.MetaData) → None¶
set_metadata_if_none(metadata: sqlalchemy.sql.schema.MetaData) → None¶
MetaDataunless it was set already.
Returns a SQLAlchemy
Tableobject. This is either the
Tableobject that was used for initialization, or one that was constructed from the
Returns the string name of the table.