修改模型、功能查找判断逻辑

handler/im.go

@@ -199,11 +199,11 @@ func doReceiveGenChatMessage(userId int, sessionID *uint, data *proto.WSMessageR
 	var model dao.Model
 	//查看请求功能类型
 	models, funcs := service.FindFuncModelByFunction(data.Function, userId)
-	log.Println("find function model by function:", models, funcs)
-	if funcs == nil || len(funcs) == 0 {
+	//log.Println("find function model by function:", models, funcs)
+	if len(funcs) == 0 {
 		return errors.New("function not exist")
 	}
-	if models == nil || len(models) == 0 {
+	if len(models) == 0 {
 		return errors.New("model not exist")
 	}
 	model = models[0]

service/modelService.go

@@ -112,7 +112,7 @@ func FindFuncModelByFunction(function string, userID int) ([]dao.Model, []dao.Fu
 	//先查找对应功能
 	funcModels := dao.FindFunctionModelByFunction(function)
 	if len(funcModels) == 0 {
-		return nil, nil
+		return []dao.Model{}, funcModels
 	}
 	modelID := funcModels[0].ModelID
 	//再查找对应模型