first commit

alembic/versions/202605110002_car_catalog.py

@@ -0,0 +1,49 @@
+"""car catalog
+
+Revision ID: 202605110002
+Revises: 202605110001
+Create Date: 2026-05-11
+"""
+
+from collections.abc import Sequence
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "202605110002"
+down_revision: str | None = "202605110001"
+branch_labels: str | Sequence[str] | None = None
+depends_on: str | Sequence[str] | None = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "car_makes",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=80), nullable=False),
+        sa.Column("country", sa.String(length=80), nullable=True),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.PrimaryKeyConstraint("id"),
+    )
+    op.create_index(op.f("ix_car_makes_name"), "car_makes", ["name"], unique=True)
+
+    op.create_table(
+        "car_models",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("make_id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=100), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.func.now(), nullable=False),
+        sa.ForeignKeyConstraint(["make_id"], ["car_makes.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("make_id", "name", name="uq_car_models_make_name"),
+    )
+    op.create_index(op.f("ix_car_models_make_id"), "car_models", ["make_id"], unique=False)
+    op.create_index(op.f("ix_car_models_name"), "car_models", ["name"], unique=False)
+
+
+def downgrade() -> None:
+    op.drop_index(op.f("ix_car_models_name"), table_name="car_models")
+    op.drop_index(op.f("ix_car_models_make_id"), table_name="car_models")
+    op.drop_table("car_models")
+    op.drop_index(op.f("ix_car_makes_name"), table_name="car_makes")
+    op.drop_table("car_makes")