On Wed, Sep 5, 2018 at 11:51 AM, Yingchen Zhang <cevin.che...@gmail.com> wrote:
> db.Column('text_column', db.VARCHAR(20), default='test_text',
> server_default='test_text', nullable=True)
>
> but, generated code like:
>
> sa.Column('text_column', sa.VARCHAR(20), nullable=True),
I assume you are using Alembic autogeneration. The Python-side
default "test_text" is not needed in an alembic autogeneration. The
server_default however will be rendered.
I ran your column as given:
target_metadata = MetaData()
Table(
't', target_metadata,
Column('text_column', VARCHAR(20), default='test_text',
server_default='test_text', nullable=True)
)
alembic generates:
def upgrade():
# ### commands auto generated by Alembic - please adjust! ###
op.create_table('t',
sa.Column('text_column', sa.VARCHAR(length=20),
server_default='test_text', nullable=True)
)
# ### end Alembic commands ###
>
>
> how to set column default value ?
>
> --
> SQLAlchemy -
> The Python SQL Toolkit and Object Relational Mapper
>
> http://www.sqlalchemy.org/
>
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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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