copilot-swe-agent[bot]
aa49fa3ae6
Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>
41 lines
1.2 KiB
Mako
41 lines
1.2 KiB
Mako
"""${message}
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Revision ID: ${up_revision}
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Revises: ${down_revision | comma,n}
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Create Date: ${create_date}
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"""
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from typing import Union
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import sqlalchemy as sa
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from alembic import op
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# revision identifiers, used by Alembic.
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revision: str = ${repr(up_revision)}
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down_revision: Union[str, None] = ${repr(down_revision)}
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depends_on: Union[str, None] = None
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def upgrade() -> None:
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"""${message}."""
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# Use ``op.batch_alter_table()`` for SQLite compatibility.
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# Always check whether the table/column already exists before altering
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# to keep migrations idempotent (safe to re-run).
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#
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# Example – add a column only if it is missing:
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#
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# conn = op.get_bind()
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# inspector = sa.inspect(conn)
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# if "my_table" in inspector.get_table_names():
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# existing = {c["name"] for c in inspector.get_columns("my_table")}
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# if "new_col" not in existing:
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# with op.batch_alter_table("my_table") as batch_op:
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# batch_op.add_column(sa.Column("new_col", sa.String(128), nullable=True))
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${upgrades if upgrades else "pass"}
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def downgrade() -> None:
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"""Reverse ${message}."""
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${downgrades if downgrades else "pass"}
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