Variable translate in TextField

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Hi all,

Does anyone have an example of a variable translate in a TextField? I want to 
switch between translators for different currencies because they have different 
numbers of decimal places.

<t:textfield t:id="price1" value="paymentAgreement.price1" 
        t:mixins="touchspin" touchspin.max="999.99" 
touchspin.forceStepDivisibility="'none'" 
touchspin.decimals="prop:currencyDecimalPlaces"
        translate="prop:moneyAmountTranslator”/>

Unfortunately I get error: org.apache.tapestry5.ioc.util.UnknownValueException: 
Could not find a coercion from type 
com.goxpro.xpro.web.translators.MoneyAmountTranslator to type 
org.apache.tapestry5.FieldTranslator. 

The background is that class MoneyAmountTranslator implements 
Translator<BigDecimal>. It’s contributed to TranslatorAlternatesSource in 
AppModule:

        @SuppressWarnings("rawtypes")
        public static void 
contributeTranslatorAlternatesSource(MappedConfiguration<String, Translator> 
configuration,
                        ThreadLocale threadLocale) {
                ...
                configuration.add("moneyamount_0", new 
MoneyAmountTranslator("moneyamount_0", 0, threadLocale, false));
                configuration.add("moneyamount_2", new 
MoneyAmountTranslator("moneyamount_2", 2, threadLocale, false));
                configuration.add("moneyamount_3", new 
MoneyAmountTranslator("moneyamount_3", 3, threadLocale, false));
        }

In the page/component’s Java, I choose the translator...

        @Property
        private Translator moneyAmountTranslator;
        ...
                Map<String, Translator> translatorAlternates = 
translatorAlternatesSource.getTranslatorAlternates();
                
                switch (currencyDecimalPlaces) {
                case 0:
                        moneyAmountTranslator = (MoneyAmountTranslator) 
translatorAlternates.get("moneyamount_0");
                        break;
                case 2:
                        moneyAmountTranslator = (MoneyAmountTranslator) 
translatorAlternates.get("moneyamount_2");
                        break;
                case 3:
                        moneyAmountTranslator = (MoneyAmountTranslator) 
translatorAlternates.get("moneyamount_3");
                        break;
                default:
                        throw new 
IllegalStateException(paymentAgreement.toString());
                }

But I am having difficulty wrapping it in a FieldTranslator.

Strangely, this works…

<t:textfield t:id="price1" value="paymentAgreement.price1" 
        t:mixins="touchspin" touchspin.max="999.99" 
touchspin.forceStepDivisibility="'none'" 
touchspin.decimals="prop:currencyDecimalPlaces"
        translate=“moneyamount_0”/>

But this doesn't…

        @Property
        private String moneyAmountTranslatorStr;
        …
                moneyAmountTranslatorStr = “moneyamount_0”;

<t:textfield t:id="price1" value="paymentAgreement.price1" 
        t:mixins="touchspin" touchspin.max="999.99" 
touchspin.forceStepDivisibility="'none'" 
touchspin.decimals="prop:currencyDecimalPlaces"
        translate="prop:moneyAmountTranslatorStr”/>

Cheers,

Geoff