def downgrade():
bind = op.get_bind()
Base.metadata.bind = bind
### commands auto generated by Alembic - please adjust! ###
op.add_column(u'predefined_apps', sa.Column('template', sa.TEXT(),
nullable=True))
op.drop_column(u'predefined_apps', 'is_deleted')
downgrade_data(bind)
op.alter_column(u'predefined_apps', u'template', nullable=False)
op.drop_column(u'pods', 'template_version_id')
op.drop_table('predefined_app_templates')
### end Alembic commands ###
3e7a44cbe1e2_add_versions_to_predefined_applications.py 文件源码
python
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