refactor: repository delete mixin

repositories/mixins.py

@@ -0,0 +1,25 @@
+from typing import Generic, TypeVar
+
+from sqlalchemy.ext.asyncio import AsyncSession
+
+EntityType = TypeVar("EntityType")
+
+
+class RepBaseMixin(Generic[EntityType]):
+    session: AsyncSession
+
+
+class RepDeleteMixin(RepBaseMixin[EntityType]):
+    async def delete(self, obj: EntityType, is_soft: bool) -> None:
+        if not is_soft:
+            await self.session.delete(obj)
+            await self.session.commit()
+            return
+
+        if not hasattr(obj, "is_deleted"):
+            raise AttributeError(
+                f"{obj.__class__.__name__} does not support soft delete (missing `is_deleted` field)"
+            )
+        obj.is_deleted = True
+        self.session.add(obj)
+        await self.session.commit()