ea97427767
- Make migrations 0002–0008 skip schema changes already applied when 0001_initial creates current ORM (rename segments column, timeline FK, memoir phase flags, drop content_tsv, eval_* tables). - development.sh / internal-eval.sh: surface Alembic stderr, warn on docker-style DB hosts, TCP port checks without lsof, verify Uvicorn listens before claiming started.
55 lines
1.4 KiB
Python
55 lines
1.4 KiB
Python
"""segments：Phase1/Phase2 标志（叙事延迟管线）
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Revision ID: 0006_segment_memoir_phases
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Revises: 0005_cleanup_story_links
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"""
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from typing import Sequence, Union
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import sqlalchemy as sa
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from alembic import op
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revision: str = "0006_segment_memoir_phases"
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down_revision: Union[str, None] = "0005_cleanup_story_links"
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branch_labels: Union[str, Sequence[str], None] = None
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depends_on: Union[str, Sequence[str], None] = None
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def _column_names(table_name: str) -> set[str]:
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bind = op.get_bind()
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inspector = sa.inspect(bind)
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return {column["name"] for column in inspector.get_columns(table_name)}
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def upgrade() -> None:
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columns = _column_names("segments")
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if "narrated" not in columns:
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op.add_column(
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"segments",
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sa.Column(
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"narrated",
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sa.Boolean(),
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nullable=False,
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server_default=sa.text("false"),
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),
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)
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if "skip_narrative" not in columns:
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op.add_column(
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"segments",
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sa.Column(
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"skip_narrative",
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sa.Boolean(),
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nullable=False,
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server_default=sa.text("false"),
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),
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)
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def downgrade() -> None:
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columns = _column_names("segments")
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if "skip_narrative" in columns:
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op.drop_column("segments", "skip_narrative")
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if "narrated" in columns:
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op.drop_column("segments", "narrated")
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