build: 添加 langchain 依赖

- 在 requirements.txt 中添加 langchain>=0.3 版本的依赖
- 保持其他依赖版本不变

frontend/setting_page.py

@@ -1,21 +1,23 @@
 import gradio as gr
-from typing import List, Dict
+from typing import List
 from sqlmodel import Session, select
 from db import get_engine
 from schema import APIProvider
 import os
 
-# 获取数据库引擎
 engine = get_engine(os.path.join(os.path.dirname(__file__), "..", "workdir"))
 
 def setting_page():
     def get_providers() -> List[List[str]]:
+        try:  # 添加异常处理
             with Session(engine) as session:
                 providers = session.exec(select(APIProvider)).all()
                 return [
                     [p.id, p.model_id, p.base_url, p.api_key or ""]
                     for p in providers
                 ]
+        except Exception as e:
+            raise gr.Error(f"获取数据失败: {str(e)}")
 
     def add_provider(model_id, base_url, api_key):
         try:
@@ -30,7 +32,6 @@ def setting_page():
                 session.refresh(new_provider)
                 return get_providers()
         except Exception as e:
-            # 抛出错误提示
             raise gr.Error(f"添加失败: {str(e)}")
 
     with gr.Blocks() as demo:
@@ -38,26 +39,32 @@ def setting_page():
 
         with gr.Row():
             with gr.Column(scale=1):
-                
                 model_id_input = gr.Textbox(label="Model ID")
                 base_url_input = gr.Textbox(label="Base URL")
                 api_key_input = gr.Textbox(label="API Key")
                 add_button = gr.Button("添加新API")
 
-            # API Provider列表
             with gr.Column(scale=3):
                 provider_table = gr.DataFrame(
-                    headers=["id" , "model id", "base URL", "API Key"],
-                    datatype=["number","str", "str", "str"],
+                    headers=["id", "model id", "base URL", "API Key"],
+                    datatype=["number", "str", "str", "str"],
                     interactive=True,
                     value=get_providers(),
                     wrap=True,
                     col_count=(4, "auto")
                 )
+
                 with gr.Row():
                     edit_button = gr.Button("编辑选中行")
                     delete_button = gr.Button("删除选中行")
+                    refresh_button = gr.Button("刷新数据", variant="secondary")
 
+        # 绑定刷新按钮事件
+        refresh_button.click(
+            fn=get_providers,
+            outputs=[provider_table],
+            queue=False  # 立即刷新不需要排队
+        )
 
         add_button.click(
             fn=add_provider,

requirements.txt

@@ -2,3 +2,4 @@ openai>=1.0.0
 python-dotenv>=1.0.0
 pydantic>=2.0.0
 gradio>=3.0.0
+langchain>=0.3

schema/dataset_generation.py

@@ -4,8 +4,8 @@ from sqlmodel import SQLModel, Relationship, Field
 
 class APIProvider(SQLModel, table=True):
     id: Optional[int] = Field(default=None, primary_key=True)
-    base_url: str = Field(..., description="API的基础URL")
-    model_id: str = Field(..., description="API使用的模型ID")
+    base_url: str = Field(...,min_length=1,description="API的基础URL，不能为空")
+    model_id: str = Field(...,min_length=1,description="API使用的模型ID，不能为空")
     api_key: Optional[str] = Field(default=None, description="用于身份验证的API密钥")
     created_at: datetime = Field(
         default_factory=lambda: datetime.now(timezone.utc),