feat: barcode templates

repositories/mixins.py

@@ -17,7 +17,12 @@ class RepBaseMixin(Generic[EntityType]):
 
 
 class RepDeleteMixin(Generic[EntityType], RepBaseMixin[EntityType]):
+    async def _before_delete(self, obj: EntityType) -> None:
+        pass
+
     async def delete(self, obj: EntityType, is_soft: bool) -> None:
+        await self._before_delete(obj)
+
         if not is_soft:
             await self.session.delete(obj)
             await self.session.commit()