翻译Grails中的HTML select元素

问题描述

以为这会更容易....想象一下< g：select /> 就像这样：

 < g：select name =type.idfrom =$ {Type.list（）}
 value =$ {domainInstance？.type？ .id}/> 
  

有两个这样的域类（请原谅我，如果这些人造类没有错误） p>

  class域名{
类型类型
} 
 
类别类型{
字符串名称
} 
  

现在我想翻译select元素的条目。以下代码首先看起来不错：

 < g：select name =type.idfrom =$ {Type。 list（）}
 valueMessagePrefix =type.name
 value =$ {domainInstance？.type？.id}/> 
  

在messagebundle中的条目是这样的：

  type.name.type1 = red 
 type.name.type2 = green 
  

问题：不仅文本被翻译，而且还有选项键！

所以我试着添加一个 optionKey ='id'：

 < g：select name =type.id from =$ {Type.list（）}
 valueMessagePrefix =type.name
 value =$ {domainInstance？.type？.id}
 optionKey ='id' /> 
  

这会将按键切换到ID - 很好，但文字切换到ID也是： - （

任何想法如何解决这个问题？ grails beeing开源，我只是检查了代码：

似乎只要使用optionKey或optionValue，valueMessagePrefix就会被忽略。 optionValue可以关闭：

 < g：select name =type.idfrom =$ {Type.list （）}
 value =$ {domainInstance？.type？.id}
 optionKey =id
 optionValue =$ {{name-> g.message（code ：'type.name'+ name）}}/> 
  

thought this would be easier.... imagine a <g:select /> like this:

<g:select name="type.id" from="${Type.list()}"
          value="${domainInstance?.type?.id}"  />

with two domain classes like this (please forgive me if these artificial classes are not error free)

class Domain {
  Type type
}

class Type {
  String name
}

I would now like to translate the entries of the select element. The following code first looked good:

<g:select name="type.id" from="${Type.list()}"
            valueMessagePrefix="type.name"
                value="${domainInstance?.type?.id}"  />

with entries in the messagebundle like this:

type.name.type1 = red
type.name.type2 = green

Problem: not only the text was translated, but the option keys, too!

So I tried to add a optionKey='id':

<g:select name="type.id" from="${Type.list()}"
         valueMessagePrefix="type.name"
             value="${domainInstance?.type?.id}"
                optionKey='id' />

This switched the keys to the id - great, but the text switched to the id, too :-(

Any idea how to solve this?

解决方案

thanx to grails beeing open source, I just checked the code: http://grails.org/doc/latest/ref/Tags/select.html#select

It seems that valueMessagePrefix is ignored as soon as you use optionKey or optionValue. But optionValue can take a closure:

<g:select name="type.id" from="${Type.list()}"
         value="${domainInstance?.type?.id}"
            optionKey="id"
            optionValue="${ {name->g.message(code:'type.name'+name) } }"/>

at least, this works.

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