fix: volcengine_maas and baichuan message error (#11625)

Co-authored-by: zhongliliu <liuzlx@digitalchina.com>

api/core/model_runtime/model_providers/baichuan/llm/llm.py

@@ -10,6 +10,7 @@ from core.model_runtime.entities.llm_entities import (
 from core.model_runtime.entities.message_entities import (
     AssistantPromptMessage,
     PromptMessage,
+    PromptMessageContentType,
     PromptMessageTool,
     SystemPromptMessage,
     ToolPromptMessage,
@@ -105,7 +106,11 @@ class BaichuanLanguageModel(LargeLanguageModel):
             if isinstance(message.content, str):
                 message_dict = {"role": "user", "content": message.content}
             else:
-                raise ValueError("User message content must be str")
+                for message_content in message.content:
+                    if message_content.type == PromptMessageContentType.TEXT:
+                        message_dict = {"role": "user", "content": message_content.data}
+                    elif message_content.type == PromptMessageContentType.IMAGE:
+                        raise ValueError("Content object type not support image_url")
         elif isinstance(message, AssistantPromptMessage):
             message = cast(AssistantPromptMessage, message)
             message_dict = {"role": "assistant", "content": message.content}

api/core/model_runtime/model_providers/volcengine_maas/legacy/client.py

@@ -68,7 +68,12 @@ class MaaSClient(MaasService):
                 content = []
                 for message_content in message.content:
                     if message_content.type == PromptMessageContentType.TEXT:
-                        raise ValueError("Content object type only support image_url")
+                        content.append(
+                            {
+                                "type": "text",
+                                "text": message_content.data,
+                            }
+                        )
                     elif message_content.type == PromptMessageContentType.IMAGE:
                         message_content = cast(ImagePromptMessageContent, message_content)
                         image_data = re.sub(r"^data:image\/[a-zA-Z]+;base64,", "", message_content.data)