How to change sqlite get function?

how can I change my Get function so that it just returns one Equipment-Objekt?

func GetEquipmentByID(Id string) (equipment Equipment, err error) {
    equipment = Equipment{}
    err = Db.QueryRow("select ID, Name, Description, ImgPath, Category, Availability, Amount, Storage from Equipment where Id = $1", Id).Scan(&equipment.ID, &equipment.Name, &equipment.Description, &equipment.ImgPath, &equipment.Category, &equipment.Availability, &equipment.Amount, &equipment.Storage)
    return 
}

I want to use this function to fill an Equipment Array in my Controller. But now it doesnt work, because my function returns 2 objects (Equipment and Error)

I want to use it here:

func Cart(w http.ResponseWriter,    r   *http.Request)  {
    data := CartData{ 
    Name: "Cart",
    Equipment: model.GetEquipment(model.Db),
    CartList: [] model.Equipment{},  
    Pages: []Page{
        {
            Title: "Meine Geräte", 
            Active: false,
            Link: "/my-equipment",
        },
        {
            Title: "Equipment", 
            Active: false,
            Link: "/equipment",
        },
        {
            Title: "Logout",
            Active: false,
            Link: "/logout",
        },
    },

}

    session, _ := store.Get(r, "cookie-name")


  list := session.Values["EquipmentIDs"].(string)

  result := strings.Split(list, ",")
  for i := range result {
        fmt.Print(i)
        fmt.Println(result[i])
    }



  for i:= range result {
      CartList[i]= model.GetEquipmentByID(result[i])
  } 




    tmpl:= template.Must(template.ParseFiles("template/base_user.html", "template/cart.html"))
    tmpl.ExecuteTemplate(w, "base", data)
    }
}

So my second question is, how can I pass the array in my cart function as data