Senko-san
37 lines
1.2 KiB
Python
37 lines
1.2 KiB
Python
"""ORM model for play history — an append-only event log (scrobbles).
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``play_duration_seconds`` (how long was actually listened) feeds skip-rate for
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future ML; ``completed`` marks a full play (plan §4).
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"""
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import datetime as dt
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import uuid
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from sqlalchemy import Boolean, DateTime, ForeignKey, Index, Integer, func
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from sqlalchemy.orm import Mapped, mapped_column
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from app.infrastructure.db.base import Base
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from app.infrastructure.db.models.mixins import UUIDPrimaryKeyMixin
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class PlayHistoryModel(UUIDPrimaryKeyMixin, Base):
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__tablename__ = "play_history"
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__table_args__ = (Index("ix_play_history_user_id_played_at", "user_id", "played_at"),)
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user_id: Mapped[uuid.UUID] = mapped_column(
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ForeignKey("users.id", ondelete="CASCADE"),
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nullable=False,
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)
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track_id: Mapped[uuid.UUID] = mapped_column(
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ForeignKey("tracks.id", ondelete="CASCADE"),
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index=True,
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nullable=False,
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)
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played_at: Mapped[dt.datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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nullable=False,
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)
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play_duration_seconds: Mapped[int | None] = mapped_column(Integer, nullable=True)
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completed: Mapped[bool] = mapped_column(Boolean, nullable=False, default=False)
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