37 lines
1,001 B
Python
37 lines
1,001 B
Python
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"""снимки активных занятий для восстановления
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Revision ID: b5e0f2a3c4d5
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Revises: a4c9d1e2f3b4
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Create Date: 2026-09-23
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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 import postgresql
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revision = "b5e0f2a3c4d5"
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down_revision = "a4c9d1e2f3b4"
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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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op.add_column("sessions", sa.Column("live_state", postgresql.JSONB(), nullable=True))
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op.add_column(
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"sessions",
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sa.Column("checkpoint_at", sa.DateTime(timezone=True), nullable=True),
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)
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op.create_index(
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"ix_sessions_active_checkpoint",
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"sessions",
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["checkpoint_at"],
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unique=False,
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postgresql_where=sa.text("ended_at IS NULL AND live_state IS NOT NULL"),
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)
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def downgrade() -> None:
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op.drop_index("ix_sessions_active_checkpoint", table_name="sessions")
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op.drop_column("sessions", "checkpoint_at")
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op.drop_column("sessions", "live_state")
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