feat: add location crud

backend/app/models.py

@@ -54,6 +54,7 @@ class User(UserBase, table=True):
         sa_type=DateTime(timezone=True),  # type: ignore
     )
     items: list["Item"] = Relationship(back_populates="owner", cascade_delete=True)
+    locations: list["Location"] = Relationship(back_populates="owner", cascade_delete=True)
 
 
 # Properties to return via API, id is always required
@@ -108,6 +109,47 @@ class ItemsPublic(SQLModel):
     count: int
 
 
+# Shared properties
+class LocationBase(SQLModel):
+    title: str = Field(min_length=1, max_length=255)
+    description: str | None = Field(default=None, max_length=255)
+
+
+# Properties to receive on location creation
+class LocationCreate(LocationBase):
+    pass
+
+
+# Properties to receive on location update
+class LocationUpdate(LocationBase):
+    title: str | None = Field(default=None, min_length=1, max_length=255)  # type: ignore
+
+
+# Database model, database table inferred from class name
+class Location(LocationBase, table=True):
+    id: uuid.UUID = Field(default_factory=uuid.uuid4, primary_key=True)
+    created_at: datetime | None = Field(
+        default_factory=get_datetime_utc,
+        sa_type=DateTime(timezone=True),  # type: ignore
+    )
+    owner_id: uuid.UUID = Field(
+        foreign_key="user.id", nullable=False, ondelete="CASCADE"
+    )
+    owner: User | None = Relationship(back_populates="locations")
+
+
+# Properties to return via API, id is always required
+class LocationPublic(LocationBase):
+    id: uuid.UUID
+    owner_id: uuid.UUID
+    created_at: datetime | None = None
+
+
+class LocationsPublic(SQLModel):
+    data: list[LocationPublic]
+    count: int
+
+
 # Generic message
 class Message(SQLModel):
     message: str