validate model before returning

letta/services/block_manager.py

@@ -39,14 +39,18 @@ def update_block(self, block_id: str, block_update: BlockUpdate, actor: Pydantic
         with self.session_maker() as session:
             block = BlockModel.read(db_session=session, identifier=block_id, actor=actor)
             update_data = block_update.model_dump(exclude_unset=True, exclude_none=True)
-            validate_block_model = block.to_pydantic()  # use this to ensure we end up with a valid pydantic object
+            # try:
+            #    validate_block_model = Block(**update_data.items())
+            # except Exception as e:
+            #    # invalid pydantic model
+            #    raise ValueError(f"Failed to create pydantic model: {e}")
             for key, value in update_data.items():
                 setattr(block, key, value)
-                try:
-                    validate_block_model.__setattr__(key, value)
-                except Exception as e:
-                    # invalid pydantic model
-                    raise ValueError(f"Failed to set {key} to {value} on block {block_id}: {e}")
+            try:
+                block.to_pydantic()
+            except Exception as e:
+                # invalid pydantic model
+                raise ValueError(f"Failed to create pydantic model: {e}")
             block.update(db_session=session, actor=actor)
             return block.to_pydantic()