From 01d97fa2cf09f8d31418e683b80d81dec1f4162d Mon Sep 17 00:00:00 2001
From: wangxiaolei <fatelei@gmail.com>
Date: Mon, 23 Mar 2026 13:51:56 +0800
Subject: [PATCH] fix: type object 'str' has no attribute 'LLM' (#33899)

---
 api/pyproject.toml                                    |  1 +
 ...t_sqlalchemy_workflow_node_execution_repository.py |  8 ++++----
 api/uv.lock                                           | 11 +++++++++++
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/api/pyproject.toml b/api/pyproject.toml
index f824fe7c23..fb71f3cd6c 100644
--- a/api/pyproject.toml
+++ b/api/pyproject.toml
@@ -79,6 +79,7 @@ dependencies = [
     "tiktoken~=0.12.0",
     "transformers~=5.3.0",
     "unstructured[docx,epub,md,ppt,pptx]~=0.21.5",
+    "pypandoc~=1.13",
     "yarl~=1.23.0",
     "webvtt-py~=0.5.1",
     "sseclient-py~=1.9.0",
diff --git a/api/tests/unit_tests/core/repositories/test_sqlalchemy_workflow_node_execution_repository.py b/api/tests/unit_tests/core/repositories/test_sqlalchemy_workflow_node_execution_repository.py
index c7af32789b..73de15e2cf 100644
--- a/api/tests/unit_tests/core/repositories/test_sqlalchemy_workflow_node_execution_repository.py
+++ b/api/tests/unit_tests/core/repositories/test_sqlalchemy_workflow_node_execution_repository.py
@@ -24,7 +24,7 @@ from core.repositories.sqlalchemy_workflow_node_execution_repository import (
 )
 from dify_graph.entities import WorkflowNodeExecution
 from dify_graph.enums import (
-    NodeType,
+    BuiltinNodeTypes,
     WorkflowNodeExecutionMetadataKey,
     WorkflowNodeExecutionStatus,
 )
@@ -67,7 +67,7 @@ def _execution(
         index=1,
         predecessor_node_id=None,
         node_id="node-id",
-        node_type=NodeType.LLM,
+        node_type=BuiltinNodeTypes.LLM,
         title="Title",
         inputs=inputs,
         outputs=outputs,
@@ -387,7 +387,7 @@ def test_to_domain_model_loads_offloaded_files(monkeypatch: pytest.MonkeyPatch)
     db_model.index = 1
     db_model.predecessor_node_id = None
     db_model.node_id = "node"
-    db_model.node_type = NodeType.LLM
+    db_model.node_type = BuiltinNodeTypes.LLM
     db_model.title = "t"
     db_model.inputs = json.dumps({"trunc": "i"})
     db_model.process_data = json.dumps({"trunc": "p"})
@@ -441,7 +441,7 @@ def test_to_domain_model_returns_early_when_no_offload_data(monkeypatch: pytest.
     db_model.index = 1
     db_model.predecessor_node_id = None
     db_model.node_id = "node"
-    db_model.node_type = NodeType.LLM
+    db_model.node_type = BuiltinNodeTypes.LLM
     db_model.title = "t"
     db_model.inputs = json.dumps({"i": 1})
     db_model.process_data = json.dumps({"p": 2})
diff --git a/api/uv.lock b/api/uv.lock
index ebfc6678fe..952ec87273 100644
--- a/api/uv.lock
+++ b/api/uv.lock
@@ -1605,6 +1605,7 @@ dependencies = [
     { name = "pydantic-extra-types" },
     { name = "pydantic-settings" },
     { name = "pyjwt" },
+    { name = "pypandoc" },
     { name = "pypdfium2" },
     { name = "python-docx" },
     { name = "python-dotenv" },
@@ -1807,6 +1808,7 @@ requires-dist = [
     { name = "pydantic-extra-types", specifier = "~=2.11.0" },
     { name = "pydantic-settings", specifier = "~=2.13.1" },
     { name = "pyjwt", specifier = "~=2.12.0" },
+    { name = "pypandoc", specifier = "~=1.13" },
     { name = "pypdfium2", specifier = "==5.6.0" },
     { name = "python-docx", specifier = "~=1.2.0" },
     { name = "python-dotenv", specifier = "==1.2.2" },
@@ -5380,6 +5382,15 @@ wheels = [
     { url = "https://files.pythonhosted.org/packages/d1/7d/037401cecb34728d1c28ea05e196ea3c9d50a1ce0f2172e586e075ff55d8/pyobvector-0.2.25-py3-none-any.whl", hash = "sha256:ae0153f99bd0222783ed7e3951efc31a0d2b462d926b6f86ebd2033409aede8f", size = 64663, upload-time = "2026-03-10T07:18:29.789Z" },
 ]
 
+[[package]]
+name = "pypandoc"
+version = "1.17"
+source = { registry = "https://pypi.org/simple" }
+sdist = { url = "https://files.pythonhosted.org/packages/ea/d6/410615fc433e5d1eacc00db2044ae2a9c82302df0d35366fe2bd15de024d/pypandoc-1.17.tar.gz", hash = "sha256:51179abfd6e582a25ed03477541b48836b5bba5a4c3b282a547630793934d799", size = 69071, upload-time = "2026-03-14T22:39:07.21Z" }
+wheels = [
+    { url = "https://files.pythonhosted.org/packages/0c/86/e2ffa604eacfbec3f430b1d850e7e04c4101eca1a5828f9ae54bf51dfba4/pypandoc-1.17-py3-none-any.whl", hash = "sha256:01fdbffa61edb9f8e82e8faad6954efcb7b6f8f0634aead4d89e322a00225a67", size = 23554, upload-time = "2026-03-14T22:38:46.007Z" },
+]
+
 [[package]]
 name = "pypandoc-binary"
 version = "1.17"