fix LocalAI add bug (#1851)

### What problem does this PR solve?

#1848

### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

---------

Co-authored-by: Zhedong Cen <[email protected]>

rag/llm/chat_model.py

@@ -102,7 +102,7 @@ class XinferenceChat(Base):
         if not base_url:
             raise ValueError("Local llm url cannot be None")
         if base_url.split("/")[-1] != "v1":
-            self.base_url = os.path.join(base_url, "v1")
+            base_url = os.path.join(base_url, "v1")
         key = "xxx"
         super().__init__(key, model_name, base_url)
 
@@ -373,8 +373,8 @@ class LocalAIChat(Base):
         if not base_url:
             raise ValueError("Local llm url cannot be None")
         if base_url.split("/")[-1] != "v1":
-            self.base_url = os.path.join(base_url, "v1")
-        self.client = OpenAI(api_key="empty", base_url=self.base_url)
+            base_url = os.path.join(base_url, "v1")
+        self.client = OpenAI(api_key="empty", base_url=base_url)
         self.model_name = model_name.split("___")[0]
 
 

rag/llm/embedding_model.py

@@ -510,8 +510,8 @@ class LmStudioEmbed(LocalAIEmbed):
         if not base_url:
             raise ValueError("Local llm url cannot be None")
         if base_url.split("/")[-1] != "v1":
-            self.base_url = os.path.join(base_url, "v1")
-        self.client = OpenAI(api_key="lm-studio", base_url=self.base_url)
+            base_url = os.path.join(base_url, "v1")
+        self.client = OpenAI(api_key="lm-studio", base_url=base_url)
         self.model_name = model_name
 
 
@@ -520,6 +520,6 @@ class OpenAI_APIEmbed(OpenAIEmbed):
         if not base_url:
             raise ValueError("url cannot be None")
         if base_url.split("/")[-1] != "v1":
-            self.base_url = os.path.join(base_url, "v1")
+            base_url = os.path.join(base_url, "v1")
         self.client = OpenAI(api_key=key, base_url=base_url)
         self.model_name = model_name.split("___")[0]