feat: mixins

models/mixins.py

@@ -0,0 +1,18 @@
+from datetime import datetime
+
+from sqlalchemy.orm import Mapped, mapped_column
+
+
+class IdMixin:
+    id: Mapped[int] = mapped_column(primary_key=True)
+
+
+class SoftDeleteMixin:
+    is_deleted: Mapped[bool] = mapped_column(
+        default=False,
+        nullable=False,
+    )
+
+
+class CreatedAtMixin:
+    created_at: Mapped[datetime] = mapped_column(nullable=False)