pass a variable to a message-key

[nimo22]

Does anyone know, how can I do something like this:

I want to pass a variable to a message-key. But this does not work.

<s:selectItems value="#{users}" var="i" label="#{messages[hobby.#{_s}]}"/>

this does also not work:

<s:selectItems value="#{users}" var="i" label="#{messages[name]}">
     <ui:param name="name" value="hobby.#{_s}"/>
</s:selectItems>

any ideas?

[niox.nikospara.yahoo.com]

Hi,

What I do is create an EL function named x:strcat and use it as follows:

<s:selectItems value="#{users}" var="i" label="#{messages[x:strcat('hobby.' , _s]}"/>

I had written a detailed description on how to create such a function here (its very simple actually) and there are plenty of examples in the web!

[thokuest]

That's even easier:

<s:selectItems value="#{users}" var="i" label="#{messages['hobby.'.concat(_s)]}"/>

By the way: what is _s?

[nimo22]

hello thanks.

sorry I have ment that:

<s:selectItems value="#{users}" var="_s" label="#{messages[hobby.#{_s}]}"/>

So you see, I want to pass the variable

"_s"

into my message-bundle.

So Thomas, your solution will not work.

Nikos, I am not sure, if your solution works.

I do not concat a static string

"_s"

with hobby - the string is only available via

#{_s}

.

Any Ideas?

[thokuest]

So, hobby is your message key?

[thokuest]

Any Ideas?

If you have the following message key

hobby=Your hobby is #{_s}

you only have to write

<s:selectItems value="#{users}" var="_s" label="#{messages['hobby']}"/>

and #{_s} will resolved to it's current value.

Alternatively, you can introduce a utility component that interpolates the message for you:

@Name("messageUtil")
@BypassInterceptors
pubic class MessageUtil {
    public String getMessage(String key, Object... params) {
        SeamResourceBundle resourceBundle = (SeamResourceBundle) Component
                .getInstance("org.jboss.seam.core.resourceBundle", true);
        
        if (!resourceBundle.containsKey(key)) {
            return key;
        }

        return Interpolator.instance().interpolate(resourceBundle.getString(key), params);
    }
}

Your message key should look like the following:

hobby=Your hobby is {0}

You can use the component like this:

<s:selectItems value="#{users}" var="_s" label="#{messageUtil.getMessage('hobby', _s)}"/>

Hope that helps!

[nimo22]

Thank you!!