core (memory/sqla): generic methods to add and delete ORM objects directly

sat/memory/sqla.py

@@ -186,6 +186,23 @@ class Storage:
 
         self.initialized.callback(None)
 
+    ## Generic
+
+    @aio
+    async def add(self, db_obj: DeclarativeMeta) -> None:
+        """Add an object to database"""
+        async with self.session() as session:
+            async with session.begin():
+                session.add(db_obj)
+
+    @aio
+    async def delete(self, db_obj: DeclarativeMeta) -> None:
+        """Delete an object from database"""
+        async with self.session() as session:
+            async with session.begin():
+                await session.delete(db_obj)
+                await session.commit()
+
     ## Profiles
 
     def getProfilesList(self) -> List[str]: