fix: use correct format when adding memory to mem0 (#6831)

Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>

.gitignore

@@ -202,3 +202,4 @@ registry.json
 
 # files created by the gitty agent in python/samples/gitty
 .gitty/
+.aider*

python/packages/autogen-ext/src/autogen_ext/memory/mem0/_mem0.py

@@ -257,7 +257,7 @@ class Mem0Memory(Memory, Component[Mem0MemoryConfig], ComponentBase[Mem0MemoryCo
             # Suppress warning messages from mem0 MemoryClient
             kwargs = {} if self._client.__class__.__name__ == "Memory" else {"output_format": "v1.1"}
             with redirect_stdout(io.StringIO()), redirect_stderr(io.StringIO()):
-                self._client.add(message, user_id=user_id, metadata=metadata, **kwargs)  # type: ignore
+                self._client.add([{"role": "user", "content": message}], user_id=user_id, metadata=metadata, **kwargs)  # type: ignore
         except Exception as e:
             # Log the error but don't crash
             logger.error(f"Error adding to mem0 memory: {str(e)}")

python/packages/autogen-ext/tests/memory/test_mem0.py

@@ -103,7 +103,11 @@ async def test_basic_workflow(mock_mem0_class: MagicMock, local_config: Mem0Memo
     # Verify add was called correctly
     mock_mem0.add.assert_called_once()
     call_args = mock_mem0.add.call_args[0]
-    assert call_args[0] == "Paris is known for the Eiffel Tower and amazing cuisine."
+
+    # Extract content from the list of dict structure: [{'content': '...', 'role': 'user'}]
+    actual_content = call_args[0][0]["content"]
+    assert actual_content == "Paris is known for the Eiffel Tower and amazing cuisine."
+
     call_kwargs = mock_mem0.add.call_args[1]
     assert call_kwargs["metadata"] == {"category": "city", "country": "France"}
 
@@ -173,7 +177,11 @@ async def test_basic_workflow_with_cloud(mock_memory_client_class: MagicMock, cl
     # Verify add was called correctly
     mock_client.add.assert_called_once()
     call_args = mock_client.add.call_args
-    assert test_content in str(call_args[0][0])  # Check that content was passed
+
+    # Extract content from list of dict structure: [{'content': '...', 'role': 'user'}]
+    actual_content = call_args[0][0][0]["content"]  # call_args[0][0] gets the first positional arg (the list)
+    assert test_content in actual_content
+
     assert call_args[1]["user_id"] == cloud_config.user_id
     assert call_args[1]["metadata"]["test"] is True