Hi, On Wed, Nov 20, 2013 at 1:30 AM, Marcin Zajączkowski <[email protected]> wrote:
> On 2013-11-19 08:44, Martin Grigorov wrote: > > Hi, > > > > I think you can use IModel<String> for the dropdown. This will be the > > country code. > > The transformation from id to name and back (if needed) can be moved to a > > custom IChoiceRenderer. There you have access to the current locale for > > each rendering. > > CountryChoiceRenderer can delegate the actual work to > > CountryDatabase/CountryProvider/... > > Thanks Martin for your reply! > > Using your suggestions I was able to simplify the Wicket code to two > classes: a custom DropDownChoice and a renderer. As a drawback I had to > optimize/cache query in my service returning country name by ID/code. > > One thing is not clear for me. How can I get a current locale in > CountryChoiceRenderer (without pass it from my DropDownChoice component)? > To have the locale passed to you you can use custom IConverter. 1) DropDownChoice<Country> 2) CountryChoiceRenderer that returns the country id for #getIdValue() and the country name for #getDisplayValue() 3) override DropDownChoice#getConverter (or register a global converter) that looks up a Country by its id > > Marcin > > > > > On Tue, Nov 19, 2013 at 12:51 AM, Marcin Zajączkowski <[email protected]> > wrote: > > > >> Hi, > >> > >> Working on Wicket frontend for AppFuse I had to implement a drop down > >> choice of countries. I did it, but don't like the solution and I wonder > >> if it could be done easier/prettier? > >> > >> Issues: > >> 1. In domain model there is a country represented as a String field (a > >> country code) in an address class. In my Wicket component I wanted to > >> use a Country class with a code and name. It forced me to create > >> CountryDropDownChoice component which embed String model into Country > >> model(with EmbeddedCountryModel): > >> > >> public class CountryDropDownChoice extends DropDownChoice<Country> { > >> public CountryDropDownChoice(String id, PropertyModel<String> > >> country, Locale locale) { > >> super(id, new EmbeddedCountryModel(country, locale), new > >> CountriesModel(locale), new ChoiceRenderer<>("name", "locale")); > >> } > >> } > >> > >> with a call in my panel/fragment: > >> add(new CountryDropDownChoice("country", new > >> PropertyModel<String>(getDefaultModel(), "country"), getLocale())); > >> > >> 2. I would like to have country names depending on current user locales. > >> I don't have access to Session in a model and there for I needed to pass > >> current locale to both models (they call CountryService implemented as > >> String bean using given locale). Could it be simplified? > >> > >> My files: > >> > >> > https://gist.github.com/szpak/b5c5ae36e7d170f3676c#file-countrydropdownchoice-java > >> > https://gist.github.com/szpak/b5c5ae36e7d170f3676c#file-countriesmodel-java > >> > >> > https://gist.github.com/szpak/b5c5ae36e7d170f3676c#file-embeddedcountrymodel-java > >> https://gist.github.com/szpak/b5c5ae36e7d170f3676c#file-country-java > >> > >> > https://gist.github.com/szpak/b5c5ae36e7d170f3676c#file-usereditpanel-java-L19 > >> > >> > https://gist.github.com/szpak/b5c5ae36e7d170f3676c#file-javalocalecountryservice-java > >> > >> Thanks in advance > >> Marcin > > -- > http://blog.solidsoft.info/ - Working code is not enough > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > >
