50 lines
1.8 KiB
Python
50 lines
1.8 KiB
Python
"""car catalog
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Revision ID: 202605110002
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Revises: 202605110001
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Create Date: 2026-05-11
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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 alembic import op
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revision: str = "202605110002"
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down_revision: str | None = "202605110001"
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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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def upgrade() -> None:
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op.create_table(
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"car_makes",
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sa.Column("id", sa.Integer(), nullable=False),
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sa.Column("name", sa.String(length=80), nullable=False),
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sa.Column("country", sa.String(length=80), nullable=True),
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sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
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sa.PrimaryKeyConstraint("id"),
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)
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op.create_index(op.f("ix_car_makes_name"), "car_makes", ["name"], unique=True)
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op.create_table(
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"car_models",
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sa.Column("id", sa.Integer(), nullable=False),
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sa.Column("make_id", sa.Integer(), nullable=False),
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sa.Column("name", sa.String(length=100), nullable=False),
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sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
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sa.ForeignKeyConstraint(["make_id"], ["car_makes.id"], ondelete="CASCADE"),
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sa.PrimaryKeyConstraint("id"),
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sa.UniqueConstraint("make_id", "name", name="uq_car_models_make_name"),
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)
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op.create_index(op.f("ix_car_models_make_id"), "car_models", ["make_id"], unique=False)
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op.create_index(op.f("ix_car_models_name"), "car_models", ["name"], unique=False)
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def downgrade() -> None:
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op.drop_index(op.f("ix_car_models_name"), table_name="car_models")
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op.drop_index(op.f("ix_car_models_make_id"), table_name="car_models")
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op.drop_table("car_models")
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op.drop_index(op.f("ix_car_makes_name"), table_name="car_makes")
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op.drop_table("car_makes")
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