70 lines
2.3 KiB
Python
70 lines
2.3 KiB
Python
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"""add income_stream table
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Revision ID: 0003
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Revises: 0002
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Create Date: 2026-05-10 00:00:00.000000
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ProjectionLab parity Wave 1: first-class typed income streams. Replaces
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the scalar `savings_per_year_gbp` + generic `life_event.delta` model for
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recurring income.
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"""
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from collections.abc import Sequence
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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from alembic import op
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revision: str = "0003"
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down_revision: str | None = "0002"
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branch_labels: str | Sequence[str] | None = None
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depends_on: str | Sequence[str] | None = None
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SCHEMA = "fire_planner"
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def _jsonb() -> sa.types.TypeEngine[object]:
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return postgresql.JSONB().with_variant(sa.JSON(), "sqlite")
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def upgrade() -> None:
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op.create_table(
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"income_stream",
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sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
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sa.Column("scenario_id", sa.Integer(), nullable=False),
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sa.Column("kind", sa.Text(), nullable=False),
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sa.Column("name", sa.Text(), nullable=False),
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sa.Column("start_year", sa.Integer(), nullable=False, server_default=sa.text("0")),
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sa.Column("end_year", sa.Integer(), nullable=True),
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sa.Column("amount_gbp_per_year",
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sa.Numeric(12, 2),
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nullable=False,
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server_default=sa.text("0")),
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sa.Column("growth_pct",
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sa.Numeric(6, 4),
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nullable=False,
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server_default=sa.text("0")),
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sa.Column("tax_treatment",
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sa.Text(),
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nullable=False,
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server_default=sa.text("'income'")),
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sa.Column("enabled",
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sa.Boolean(),
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nullable=False,
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server_default=sa.text("true")),
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sa.Column("payload", _jsonb(), nullable=True),
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sa.Column("created_at",
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sa.TIMESTAMP(timezone=True),
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nullable=False,
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server_default=sa.text("now()")),
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schema=SCHEMA,
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)
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op.create_index("idx_income_stream_scenario",
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"income_stream", ["scenario_id"],
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schema=SCHEMA)
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def downgrade() -> None:
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op.drop_index("idx_income_stream_scenario", table_name="income_stream", schema=SCHEMA)
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op.drop_table("income_stream", schema=SCHEMA)
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