支持商户用户归属的功能。

app/api/endpoints/merchant.py

@@ -63,6 +63,14 @@ async def update_merchant(
     if not db_merchant:
         return error_response(code=404, message="商家不存在")
     
+    # 如果要更新用户ID，先验证用户是否存在
+    if merchant.user_id is not None:
+        user_exists = db.query(UserDB).filter(
+            UserDB.userid == merchant.user_id
+        ).first()
+        if not user_exists:
+            return error_response(code=400, message="指定的用户不存在")
+    
     # 更新基本信息
     update_data = merchant.model_dump(exclude={'images'}, exclude_unset=True)
     for key, value in update_data.items():
@@ -87,7 +95,28 @@ async def update_merchant(
     try:
         db.commit()
         db.refresh(db_merchant)
-        return success_response(data=MerchantInfo.model_validate(db_merchant))
+        
+        # 获取更新后的完整信息（包括用户信息）
+        updated_merchant = db.query(
+            MerchantDB,
+            UserDB.phone.label('user_phone'),
+            UserDB.username.label('user_username')
+        ).join(
+            UserDB,
+            MerchantDB.user_id == UserDB.userid
+        ).filter(
+            MerchantDB.id == merchant_id
+        ).first()
+        
+        # 构建返回数据
+        merchant_info = MerchantInfo.model_validate(updated_merchant.MerchantDB)
+        merchant_data = merchant_info.model_dump()
+        merchant_data.update({
+            'user_phone': updated_merchant.user_phone,
+            'user_username': updated_merchant.user_username
+        })
+        
+        return success_response(data=merchant_data)
     except Exception as e:
         db.rollback()
         return error_response(code=500, message=f"更新失败: {str(e)}")
@@ -98,14 +127,29 @@ async def get_merchant(
     db: Session = Depends(get_db)
 ):
     """获取商家详情"""
-    merchant = db.query(MerchantDB).filter(
+    merchant = db.query(
+        MerchantDB,
+        UserDB.phone.label('user_phone'),
+        UserDB.username.label('user_username')
+    ).join(
+        UserDB,
+        MerchantDB.user_id == UserDB.userid
+    ).filter(
         MerchantDB.id == merchant_id
     ).first()
     
     if not merchant:
         return error_response(code=404, message="商家不存在")
     
-    return success_response(data=MerchantInfo.model_validate(merchant))
+    # 构建返回数据
+    merchant_info = MerchantInfo.model_validate(merchant.MerchantDB)
+    merchant_data = merchant_info.model_dump()
+    merchant_data.update({
+        'user_phone': merchant.user_phone,
+        'user_username': merchant.user_username
+    })
+    
+    return success_response(data=merchant_data)
 
 @router.get("", response_model=ResponseModel)
 async def list_merchants(
@@ -119,10 +163,15 @@ async def list_merchants(
     """获取商家列表，支持经纬度排序和分类过滤"""
     query = db.query(
         MerchantDB,
-        MerchantCategoryDB.name.label('category_name')
+        MerchantCategoryDB.name.label('category_name'),
+        UserDB.phone.label('user_phone'),
+        UserDB.username.label('user_username')
     ).outerjoin(
         MerchantCategoryDB,
         MerchantDB.category_id == MerchantCategoryDB.id
+    ).join(
+        UserDB,
+        MerchantDB.user_id == UserDB.userid
     )
 
     # 添加分类过滤
@@ -143,7 +192,9 @@ async def list_merchants(
     merchant_list = [{
         **MerchantInfo.model_validate(m[0]).model_dump(),
         "category_name": m[1],
-        "distance": round(m[2]) if longitude is not None and latitude is not None else None
+        "user_phone": m[2],
+        "user_username": m[3],
+        "distance": round(m[4]) if longitude is not None and latitude is not None else None
     } for m in merchants]
 
     # 获取总数（需要考虑分类过滤）

app/models/merchant.py

@@ -61,6 +61,7 @@ class MerchantCreate(BaseModel):
     category_id: Optional[int] = None
 
 class MerchantUpdate(BaseModel):
+    user_id: Optional[int] = None
     name: Optional[str] = Field(None, max_length=100)
     business_hours: Optional[str] = Field(None, max_length=100)
     address: Optional[str] = Field(None, max_length=200)
@@ -73,6 +74,8 @@ class MerchantUpdate(BaseModel):
 class MerchantInfo(BaseModel):
     id: int
     user_id: int
+    user_phone: Optional[str] = None
+    user_username: Optional[str] = None
     name: str
     business_hours: str
     address: str