Hi,
Thanks for replying. Just to clarify, do you mean do something like
this:
LoadableDetachableModel<List<MyRecord>> myRecordsModel = new
LoadableDetachableModel<List<MyRecord>>()
{
@Override
protected List<MyRecord> load()
{
return myRecordService.getList();
}
};
MyRecord selectedRecord;
form.add(new DropDownChoice<MyRecord>("records",
new PropertyModel<MyRecord>(this, "selectedRecord"),
myRecordsModel,
new MyRecordRenderer()).setNullValid(false));
Shelli
-----Original Message-----
From: jcgarciam [mailto:jcgarc...@gmail.com]
Sent: Monday, October 04, 2010 6:27 PM
To: users@wicket.apache.org
Subject: Re: DropDownChoice/Model Confusion
Hi, instead of passing "getMyRecords()" in the constructor wrap it
around
a LoadableDetachableModel and pass that model to the DDC. The difference
is
that your current list is fetch only once at construction of your pages
and
is considered static because its never get called again unless you
triggered
it by entering to a new page instance, while by using a LDM the
component
will ask for it every time it needs to re-render them.
On Mon, Oct 4, 2010 at 6:52 PM, Shelli Orton [via Apache Wicket] <
ml-node+2955144-665570512-65...@n4.nabble.com<ml-node%2B2955144-66557051
2-65...@n4.nabble.com>
> wrote:
> I am writing a (simple?) database CRUD app where I have multiple tab
> panels that encapsulate the different tables in the database. On a
> panel there's a dropdownchoice which lists the existing records for
that
> table. There's also create, delete and edit buttons (and and edit
panel
> with save and cancel buttons). When I create, edit or delete any of
the
> records, the dropdownchoice list doesn't reflect the changes until I
> open a new session. So my question is how to reload the list after
one
> of these actions is done?
>
> Currently my dropdownchoice model is set like this:
>
> MyRecord selectedRecord;
> ...
> form.add(new DropDownChoice<MyRecord>("records",
> new PropertyModel<MyRecord>(this, "selectedRecord"),
> getMyRecords(), // method that retrieves from the database
(via
> JPA)
> new MyRecordRenderer()).setNullValid(false)); // used to
return
> the display attribute of MyRecord
>
> I am trying to understand if using a LoadableDetachableModel will do
the
> reload that I want. Also, I don't know how to set the selectedRecord
> using that type of model or if it's even possible.
>
> Any advice?
>
> Thanks!
>
> Shelli
>
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--
Sincerely,
JC (http://www.linkedin.com/in/jcgarciam)
Work smarter, not harder!.
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