增加对话表保存basic的agent会话，会话列表支持basic会话查询

app/api/agent.py

@@ -10,6 +10,7 @@ from app.api import Response, get_current_user, ResponseList
 from app.config.config import settings
 from app.models.agent_model import AgentType, AgentModel
 from app.models.base_model import get_db
+from app.models.session_model import SessionModel
 from app.models.user_model import UserModel
 from app.service.bisheng import BishengService
 from app.service.dialog import get_session_history
@@ -57,6 +58,12 @@ async def chat_list(
             raise HTTPException(status_code=500, detail=str(e))
         return ResponseList(code=200, msg="", data=result)
 
+    elif agent.agent_type == AgentType.BASIC:
+        offset = (page - 1) * limit
+        records = db.query(SessionModel).filter(SessionModel.agent_id == agent_id).offset(offset).limit(limit).all()
+        result = [item.to_dict() for item in records]
+        return ResponseList(code=200, msg="", data=result)
+
     else:
         return ResponseList(code=200, msg="Unsupported agent type")
 

app/models/session_model.py

@@ -0,0 +1,28 @@
+import json
+from datetime import datetime
+from enum import IntEnum
+from sqlalchemy import Column, String, Enum as SQLAlchemyEnum, Integer, DateTime
+
+from app.models import AgentType
+from app.models.base_model import Base
+
+
+class SessionModel(Base):
+    __tablename__ = "sessions"
+    id = Column(String(255), primary_key=True)
+    name = Column(String(255))
+    agent_id = Column(String(255))
+    agent_type = Column(SQLAlchemyEnum(AgentType), nullable=False)  # 目前只存basic的，ragflow和bisheng的调接口获取
+    create_date = Column(DateTime)  # 创建时间
+    update_date = Column(DateTime)  # 更新时间
+
+    # to_dict 方法
+    def to_dict(self):
+        return {
+            'id': self.id,
+            'name': self.name,
+            'agent_type': self.agent_type,
+            'agent_id': self.agent_id,
+            'create_date': self.create_date,
+            'update_date': self.update_date,
+        }