如何在g中使用带有Grails / Groovy枚举的i18n：select？ [英] How to use i18n with a Grails/Groovy enum in a g:select?

问题描述

我正在尝试使用i18n本地化工作在Grails / Groovy枚举上，

i am trying to get i18n localisation working on an Grails/Groovy enum,

public enum Notification  {
    GENERIC(0),
    CONFIRM_RESERVATION(100),
    CONFIRM_ORDER(200),
    CONFIRM_PAYMENT(300),

    final int id;

    private Notification(int id) {
        this.id = id
    }

    String toString() {
        id.toString()
    }

    String getKey() {
        name()
    }
}

关于我如何实现这一点的任何提示？我试图把完整的类名等等放在本地化中，但是这看起来似乎有效。

Any hints on how i could achieve that? I tried to put the full classname etc in a localisation but this does noet seem to work

<g:select from="${Notification.values()}"  name="notification" valueMessagePrefix="full.path.to.package.Notification"/>

推荐答案

对不起，我认为这可以帮助您。我对enums和i18n有着完全相同的问题。这是我找到的解决方案：

Sorry for the delay but I think this could help you. I was having the exact same problem with enums and i18n. This is the solution I found:

在您之前定义的枚举之后，在您的message.properties文件中为每个枚举值输入一个条目，例如：

Following your enum defined before, in your message.properties files put an entry for each value of the enum for example:

enum.value.GENERIC
enum.value.CONFIRM_RESERVATION
enum.value.CONFIRM_ORDER
enum.value.CONFIRM_PAYMENT

然后，当您想要在select元素中显示enum的值时，请按照以下操作：

Then when you want to show the values of the enum in a select element then do as follows:

<g:select from="${path.to.package.Notification.values()}"  keys="${path.to.package.Notification?.values()}" name="notification" valueMessagePrefix="enum.value"/>

根据关于select标签的Grails文档，使用valueMessagePrefix属性中的值由一个点（。），然后是枚举元素的值。这样它就会进入message.properties文件并搜索你之前放置的行。

According to the Grails documentation regarding the select tag, the value you put in the attribute valueMessagePrefix is used followed by a dot(.) and then the value of the element of the enum. So that way it would go to the message.properties file and search for the lines you put before.

现在，您需要做的另一件事是例如在数据列表，显示每条记录的枚举值。在这种情况下，您需要执行以下操作：

Now, the other thing you would need to do is for example in a list of data, show the value of the enum for each record. In that case you need to do as follows:

${message(code:'enum.value.'+fieldValue(bean: someDomainClass, field: "notification"))}

这是如果你有一个域类类型通知的属性。

This is if you have a domain class with one attribute of type Notification.

希望这有帮助。
拜拜！

Hope this helped. Bye!

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