grails - inList中的国际化

Question

我找到了this，它对我想做的事情非常有用，但是有什么方法可以使 inList 中的内容遵循。Grails国际化是

谢谢

Answer 1

我找到了workaround，我认为这可能会有所帮助..

1. toString()

As you know, the scaffolded screens just output values in selects and dropdowns through the toString() method of the shown object. We can construct each enum with a hardcoded translation and have toString() return that value.

 class Product {

enum Status {

    AVAILABLE("Beschikbaar"), SOLD_OUT("Uitverkocht")

    final String value
    Status(String value) {
        this.value = value
    }

    String toString() {
        value
    }
}

String name
Status status

static constraints = { name blank: false, unique: true }
}

The actual names of the enum now only appear in the generated HTML:

 <select name="status" required="" id="status" >
 <option value="AVAILABLE" >Beschikbaar</option>
  <option value="SOLD_OUT" >Uitverkocht</option>
  </select>

2. MessageSourceResolvable

By now you’ll probably understand above hardcoded solution works for just one language, one hardcoded in the enum itself – which will cause problems when in a month from now your application actually needs to support a 2nd language :-) So how do we leverage the fact that we have already have message_XX.properties where we’ve put our other message keys? Use the underlying Spring framework. Have our enum implement org.springframework.context.MessageSourceResolvable e.g. like this:

enum Status implements org.springframework.context.MessageSourceResolvable {

AVAILABLE, SOLD_OUT

public Object[] getArguments() { [] as Object[] }

public String[] getCodes() { [ name() ] }

public String getDefaultMessage() { "?-" + name() }
}

Now we can provide a value in our messages_nl.properties for each enum we have:

product.label=Product
product.name.label=Naam
product.status.label=Status
AVAILABLE=Beschikbaar
SOLD_OUT=Uitverkocht