feat: add UUIDv7Mixin (#140)

src/fastapi_toolsets/models.py

@@ -8,6 +8,7 @@ from sqlalchemy.orm import Mapped, mapped_column
 
 __all__ = [
     "UUIDMixin",
+    "UUIDv7Mixin",
     "CreatedAtMixin",
     "UpdatedAtMixin",
     "TimestampMixin",
@@ -24,6 +25,16 @@ class UUIDMixin:
     )
 
 
+class UUIDv7Mixin:
+    """Mixin that adds a UUIDv7 primary key auto-generated by the database."""
+
+    id: Mapped[uuid.UUID] = mapped_column(
+        Uuid,
+        primary_key=True,
+        server_default=text("uuidv7()"),
+    )
+
+
 class CreatedAtMixin:
     """Mixin that adds a ``created_at`` timestamp column."""