02: Changed setup for alembic and sqlAlchemy

app/db/models/property.py

@@ -0,0 +1,65 @@
+from sqlalchemy import String, Integer, Float, Date, Boolean, ForeignKey
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+from app.db.models.base import Base
+from datetime import date
+
+
+class Property(Base):
+
+    __tablename__ = "properties"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+
+    # Basic Info
+    property_type: Mapped[str] = mapped_column(String(50))
+    built_up_area: Mapped[float] = mapped_column(Float)
+
+    bedrooms: Mapped[int] = mapped_column(Integer)
+    bathrooms: Mapped[int] = mapped_column(Integer)
+
+    # Transaction Info
+    purchase_date: Mapped[date] = mapped_column(Date)
+    purchase_price: Mapped[float]
+
+    sale_listing_date: Mapped[date] = mapped_column(Date,nullable=True)
+    sale_asking_price: Mapped[float] = mapped_column(nullable=True)
+
+    # Maintenance
+    last_renovation_date: Mapped[date] = mapped_column(Date,nullable=True)
+    renovation_description: Mapped[str] = mapped_column(String(255), nullable=True)
+
+    roof_repair_date: Mapped[date] = mapped_column(Date,nullable=True)
+    roof_condition: Mapped[str] = mapped_column(String(50))
+
+    # Rental Status
+    available_for_rent: Mapped[bool] = mapped_column(Boolean, default=False)
+    expected_rent: Mapped[float] = mapped_column(nullable=True)
+    rental_available_date: Mapped[date] = mapped_column(Date, nullable=True)
+
+    # -------------------------
+    # Foreign Keys
+    # -------------------------
+
+    owner_id: Mapped[int] = mapped_column(
+        ForeignKey("owners.id", ondelete="CASCADE")
+    )
+
+    location_id: Mapped[int] = mapped_column(
+        ForeignKey("locations.id", ondelete="CASCADE"),
+        unique=True   # ONE property = ONE location
+    )
+
+    # -------------------------
+    # Relationships
+    # -------------------------
+
+    owner = relationship(
+        "Owner",
+        back_populates="properties"
+    )
+
+    location = relationship (
+        "Location",
+        back_populates="property",
+        uselist=False,
+    )