non-serializable objects to feed a DropDownChoice

[René Stolle]

Hello there,

my domain classes are mostly not serializable. Making use of 
LoadableDetachableModels I have no problems execpt of one situtation: I 
couldn't find an easy solution to place a list of domain objects in a 
DropDownChoice without getting serialization issues. The examples I 
found ignore this problem and I have only a pretty complicated work 
around. My domain classes have an id of type long (serializeable), which 
I use in my solution. This works, but the code confuses me everytime I 
have to touch it.


My question now, how is this done the "wicket way" ? Is there an elegant 
solution out there?


René

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Rendering a page for storage

[René Stolle]

Hello,

most of my projects have a AppStatus Page containing some statistics.

No I need to store this information on web server shut down and I was 
wondering, if I could just persist a freshly rendered page and have 
everything I need nicley formatted in a html file. The javadoc looked 
promising but the following code in my app class


@Override
protected void onDestroy() {
    ComponentRenderer cr = new ComponentRenderer(this);
    logStatus (cr.renderPage(AppStatus::new));
}

gave me only a java.lang.IllegalArgumentException: Request must be 
ServletWebRequest


What did I miss? Am I on the right path?

René

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Recommenced way of dealing with non Serializable Objects in Forms

[René Stolle]

Hello,

I simply wanna edit non Serializable domain objects in a html form. The 
Form should
work for inserts (new objects) and updates. I created a 
LoadableDetachableModel for
the given Domain which keeps a (database) id and has the following load 
method:


@Override
protected Testobject load() {
    if (DomainEntity.isPersistent(id)) {
    return Testobject.findOne(id);
    } else {
    return new Testobject();
    }
}

So if the id indicates persistence, the Testobject is loaded from the 
data source.

If not, a new Testobject is created.

I put this Model in a CompoundPropertyModel and everythings works fine.

But I wonder if there are other solutions?

Regards,
Rene


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DatePicker in wicket 8

[René Stolle]

Hello everybody,

I just realized the wicket-datetime module is gone in wicket 8 and with 
it my beloved DatePicker.


Is it totally gone or just replaced or renamed?

The Migration Guide for Wicket 8 does not mention anything about 
(wicket-)date/time.


Best regards,
René

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