45 lines
1.6 KiB
Python
45 lines
1.6 KiB
Python
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"""Add feedback_events table and vibe_embedding to playlists
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Revision ID: 004
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Revises: 003
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Create Date: 2026-02-23
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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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from pgvector.sqlalchemy import Vector
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revision: str = "004"
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down_revision: Union[str, None] = "003"
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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 upgrade() -> None:
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# Add vibe_embedding to playlists (nullable — only set for vibe playlists)
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op.add_column("playlists", sa.Column("vibe_embedding", Vector(512), nullable=True))
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# Create feedback_events table
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op.create_table(
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"feedback_events",
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sa.Column("id", sa.BigInteger, primary_key=True),
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sa.Column("playlist_id", sa.BigInteger, sa.ForeignKey("playlists.id"), nullable=False),
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sa.Column("track_id", sa.BigInteger, sa.ForeignKey("tracks.id"), nullable=False),
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sa.Column("vibe_embedding", Vector(512), nullable=False),
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sa.Column("vibe_text", sa.Text, nullable=True),
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sa.Column("signal", sa.Text, nullable=False),
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sa.Column("signal_weight", sa.REAL, nullable=False),
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sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now()),
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)
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# B-tree index on track_id (primary query pattern: fetch events by track)
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op.create_index("ix_feedback_events_track_id", "feedback_events", ["track_id"])
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def downgrade() -> None:
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op.drop_index("ix_feedback_events_track_id", table_name="feedback_events")
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op.drop_table("feedback_events")
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op.drop_column("playlists", "vibe_embedding")
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