first commit

app/models/car.py

@@ -0,0 +1,55 @@
+from datetime import date, datetime
+from decimal import Decimal
+
+from sqlalchemy import Date, DateTime, ForeignKey, Numeric, String, UniqueConstraint, func
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+from app.db.base import Base
+
+
+class Car(Base):
+    __tablename__ = "cars"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    owner_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), index=True)
+    name: Mapped[str] = mapped_column(String(160))
+    make: Mapped[str | None] = mapped_column(String(80))
+    model: Mapped[str | None] = mapped_column(String(80))
+    year: Mapped[int | None]
+    plate_number: Mapped[str | None] = mapped_column(String(32))
+    vin: Mapped[str | None] = mapped_column(String(32))
+    fuel_type: Mapped[str | None] = mapped_column(String(32))
+    purchase_date: Mapped[date | None] = mapped_column(Date)
+    purchase_price: Mapped[Decimal | None] = mapped_column(Numeric(12, 2))
+    current_odometer: Mapped[int | None]
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+    owner = relationship("User", back_populates="cars")
+    fuel_entries = relationship("FuelEntry", back_populates="car", cascade="all, delete-orphan")
+    service_entries = relationship("ServiceEntry", back_populates="car", cascade="all, delete-orphan")
+
+
+class CarMake(Base):
+    __tablename__ = "car_makes"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    name: Mapped[str] = mapped_column(String(80), unique=True, index=True)
+    country: Mapped[str | None] = mapped_column(String(80))
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    models = relationship("CarModel", back_populates="make", cascade="all, delete-orphan")
+
+
+class CarModel(Base):
+    __tablename__ = "car_models"
+    __table_args__ = (UniqueConstraint("make_id", "name", name="uq_car_models_make_name"),)
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    make_id: Mapped[int] = mapped_column(ForeignKey("car_makes.id", ondelete="CASCADE"), index=True)
+    name: Mapped[str] = mapped_column(String(100), index=True)
+    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
+
+    make = relationship("CarMake", back_populates="models")