bd0dbb4df9
- "alembic/versions/012_multi_source_format.py" - "backend/models.py" - "backend/schemas.py" GSD-Task: S03/T01
55 lines
1.7 KiB
Python
55 lines
1.7 KiB
Python
"""Add body_sections_format column and technique_page_videos association table.
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Supports multi-source technique pages: tracks which source videos contributed
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to a technique page, and marks the body_sections format version for future
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structured section layouts.
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Revision ID: 012_multi_source_fmt
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Revises: 011_cls_cache_rerun
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"""
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects.postgresql import UUID
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revision = "012_multi_source_fmt"
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down_revision = "011_cls_cache_rerun"
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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# Add body_sections_format to technique_pages with default for existing rows
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op.add_column(
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"technique_pages",
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sa.Column(
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"body_sections_format",
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sa.String(20),
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nullable=False,
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server_default="v1",
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),
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)
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# Create technique_page_videos association table
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op.create_table(
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"technique_page_videos",
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sa.Column("id", UUID(as_uuid=True), primary_key=True, server_default=sa.func.gen_random_uuid()),
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sa.Column(
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"technique_page_id",
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UUID(as_uuid=True),
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sa.ForeignKey("technique_pages.id", ondelete="CASCADE"),
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nullable=False,
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),
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sa.Column(
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"source_video_id",
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UUID(as_uuid=True),
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sa.ForeignKey("source_videos.id", ondelete="CASCADE"),
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nullable=False,
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),
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sa.Column("added_at", sa.TIMESTAMP(), server_default=sa.func.now(), nullable=False),
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sa.UniqueConstraint("technique_page_id", "source_video_id", name="uq_page_video"),
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)
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def downgrade() -> None:
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op.drop_table("technique_page_videos")
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op.drop_column("technique_pages", "body_sections_format")
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