Gorm Updating a record and getting the updated version back

Question

I am trying to update a record in the database using the document's ID to identify it. If the update is successful, I expect an to get back the updated record and send it back via a REST API. If the update fails due to the record not being in the database (i.e. the ID was not found), I expect to get a gorm.ErrRecordNotFound

This is the code I am using to do the update.

func UpdateTodo(w http.ResponseWriter, r *http.Request) {
    var t models.Todo
    params := mux.Vars(r)
    todoId, err := strconv.ParseInt(params["todoId"], 10, 64)

    if err != nil {
        http.Error(w, fmt.Sprintf("Todo with ID = %s not found", params["todoId"]), http.StatusNotFound)
        return
    }

    err = decodeJSONBody(r, &t)

    if err != nil {
        http.Error(w, "Invalid input data. Try again.", http.StatusBadRequest)
        return
    }

    updates := map[string]interface{}{
        "complete": t.Complete,
    }

    if t.Task != "" {
        updates["task"] = t.Task
    }

    err = initializers.DB.Model(&t).Where("id = ?", todoId).Updates(updates).Error

    if err != nil {

        if errors.Is(err, gorm.ErrRecordNotFound) {
            http.Error(w, fmt.Sprintf("Todo with ID = %d not found", todoId), http.StatusNotFound)
            return
        }

        http.Error(w, "An error occurred. Try later", http.StatusInternalServerError)
        return
    }

    b, err := encodeJSONBody(t)

    if err != nil {
        http.Error(w, "An error occurred. Try later", http.StatusInternalServerError)
        return
    }

    _, err = w.Write(b)

    if err != nil {
        http.Error(w, "An error occurred. Try later", http.StatusInternalServerError)
        return
    }
}

I was expecting to get a gorm.ErrRecordNotFound but no error is being produced. Even if I make updates using an ID that is way out of range I am still getting back something. If I do make an update to a record that I know exists in the database, it is working but I'm not getting back the updated record on t. I thought this would be the case since I am passing &t to this. Am I doing something wrong with these updates? Please help.

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