On 2013-11-20 09:28, Martin Grigorov wrote:
> Hi,
>
> On Wed, Nov 20, 2013 at 1:30 AM, Marcin Zajączkowski <msz...@wp.pl> 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
Thanks Martin for your explanation.
Marcin
>>> On Tue, Nov 19, 2013 at 12:51 AM, Marcin Zajączkowski <msz...@wp.pl>
>> 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
>>
>>
>>
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