Is your getList() being called multiple times?

On Tue, Oct 5, 2010 at 6:37 PM, Shelli Orton <shelli.or...@sjrb.ca> wrote:
> I overrode the detach method in my class (which simply calls super.detach()) 
> so I could set a breakpoint and see if it gets called and it does.
>
> Shelli
>
> -----Original Message-----
> From: Shelli Orton
> Sent: Tuesday, October 05, 2010 2:24 PM
> To: users@wicket.apache.org
> Subject: RE: DropDownChoice/Model Confusion
>
> I don't know how to determine that.
>
> -----Original Message-----
> From: jcar...@carmanconsulting.com [mailto:jcar...@carmanconsulting.com] On 
> Behalf Of James Carman
> Sent: Tuesday, October 05, 2010 1:44 PM
> To: users@wicket.apache.org
> Subject: Re: DropDownChoice/Model Confusion
>
> Is it being detached?
>
> On Tue, Oct 5, 2010 at 3:26 PM, Shelli Orton <shelli.or...@sjrb.ca> wrote:
>> No, I'm not using AJAX.  Is there a way to force the LDB to reload?
>>
>> Shelli
>>
>> -----Original Message-----
>> From: jcgarciam [mailto:jcgarc...@gmail.com]
>> Sent: Tuesday, October 05, 2010 12:52 PM
>> To: users@wicket.apache.org
>> Subject: Re: DropDownChoice/Model Confusion
>>
>>
>> I dont think it may be related to the hierarchy, are you using AJAX?
>>
>> On Tue, Oct 5, 2010 at 2:38 PM, Shelli Orton [via Apache Wicket] <
>> ml-node+2956527-385265518-65...@n4.nabble.com<ml-node%2B2956527-38526551
>> 8-65...@n4.nabble.com>
>>> wrote:
>>
>>> Hmm, that code sort of works.  When I create or edit a record, the
>> list
>>> is updated.  However, when I delete a record it is not.  My component
>>> hierarchy is set up like this (hope it makes sense):
>>>
>>> TabPanel
>>>   - SelectForEditForm
>>>     - MyRecords (DDC)
>>>     - Add (Button)
>>>     - Edit (Button)
>>>     - Delete (Button)
>>>   - EditGroup (WebMarkupContainer)
>>>     - EditForm
>>>       - MyRecord Name (TextField)
>>>       - MyRecord Attribute (DDC)
>>>       - Save (Button)
>>>       - Cancel (Button)
>>>
>>> I created the EditGroup so that I can hide/display the edit panel.
>>> Debugging the application shows that the save button onSubmit is
>> called
>>> before the update of the myRecordsModel LDM and this is why the list
>> is
>>> updated when I create/edit a record. The delete button onSubmit is
>>> called after the update of the myRecordsModel LDM and that is why a
>>> deleted record is still visible in the list.
>>>
>>> I think the issue has something to do with the buttons being in
>>> different places in the component hierarchy. Can you provide any
>>> guidance on if there's some way to have the LDM updated after the
>> delete
>>> onSubmit?
>>>
>>> Thanks again,
>>> Shelli
>>>
>>> -----Original Message-----
>>> From: jcgarciam [mailto:[hidden
>> email]<http://user/SendEmail.jtp?type=node&node=2956527&i=0>]
>>>
>>> Sent: Tuesday, October 05, 2010 9:33 AM
>>> To: [hidden email]
>> <http://user/SendEmail.jtp?type=node&node=2956527&i=1>
>>> Subject: Re: DropDownChoice/Model Confusion
>>>
>>>
>>> Yes, that should make your DDC to query the list any time it needs to
>> re
>>> render.
>>>
>>> To your 2nd. question in order to set a default or selected value,
>> just
>>> set
>>> a "MyRecord" reference to your property, keep in mind that your
>>> "MyRecord"
>>> should implement and equals/hashcode correctly.
>>>
>>>
>>> On Tue, Oct 5, 2010 at 12:00 PM, Shelli Orton [via Apache Wicket] <
>>> [hidden email]
>> <http://user/SendEmail.jtp?type=node&node=2956527&i=2><ml-node%2B2956214
>> -1797994
>>>
>>> [hidden email] <http://user/SendEmail.jtp?type=node&node=2956527&i=3>>
>>> > wrote:
>>>
>>> > 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:[hidden
>>> email]<http://user/SendEmail.jtp?type=node&node=2956214&i=0>]
>>> >
>>> > Sent: Monday, October 04, 2010 6:27 PM
>>> > To: [hidden email]
>>> <http://user/SendEmail.jtp?type=node&node=2956214&i=1>
>>> > 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] <
>>> > [hidden email]
>>>
>> <http://user/SendEmail.jtp?type=node&node=2956214&i=2><ml-node%2B2955144
>>> -66557051
>>>
>>> >
>>> > [hidden email]
>> <http://user/SendEmail.jtp?type=node&node=2956214&i=3>>
>>> > > 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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>>> > >
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>>> > >
>>> >
>>> >
>>> > --
>>> > Sincerely,
>>> > JC (http://www.linkedin.com/in/jcgarciam)
>>> > Work smarter, not harder!.
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>>> Sincerely,
>>> JC (http://www.linkedin.com/in/jcgarciam)
>>> Work smarter, not harder!.
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>> Sincerely,
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>> Work smarter, not harder!.
>>
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