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Posted to users@wicket.apache.org by Patrick Davids <pa...@nubologic.com> on 2014/11/07 09:39:56 UTC
[SOLVED] Re: PropertyModel / PropertyResolver / Map or List access
Hi Sven, Hi Paul,
thanx, now its working.
I thought the PropertyModel/PropertyResolver will unpack the
model-object itself, so there is no need to adress getObject by ".object".
Maybe a small note in javadoc could help others not running into this issue.
So...
All ways (mentioned in javadoc) are working, tested:
(@Sven: I think you had some typos in your mail, so I will repeat my
working tests)
new PropertyModel(MyPage.this, "list.object[1].anyProperty")
new PropertyModel(MyPage.this, "list.object.1.anyProperty")
new PropertyModel(list, "[1].anyProperty")
new PropertyModel(list, "1.anyProperty")
as well, navigation further, such an expression is working, too.
new PropertyModel(list, "1.anyProperty[any-string-key]")
Thanx for help... best regards
Patrick
P.s.
Short question for string-key-access on maps.
The syntax is quite equal to associative arrays in javascript.
I like the way it is in wicket, no need paying attention for additional
quotation marks, and its ok for me, but shouldnt it also support
new PropertyModel(list, "1.anyProperty['any-string-key']")?
Am 06.11.2014 21:01, schrieb Sven Meier:
> Hi,
>
> you're telling PropertyModel to look up property "list" from MyPage, but
> "list" is not a list, it's a model, models don't have a property "1".
>
> Use this instead:
>
> new Label("myLabel", new PropertyModel(list, "[1],anyProperty"))
>
> ... or:
>
> new Label("myLabel", new PropertyModel(MyPage.this,
> "list.object.[1].anyProperty"))
>
> Regards
> Sven
>
>
>
> On 11/06/2014 05:03 PM, Patrick Davids wrote:
>> Hi all,
>>
>> the javadoc of PropertyResolver says, map or list access is possible via
>> keys or index.
>> Accessing an map via key is no problem, but I dont get it working for
>> lists and index.
>>
>> for instance:
>>
>> MyPage extends Page{
>>
>> private IModel<List<Anything>> list;
>>
>> public MyPage(IModel<List<Anything>> list){
>> super();
>> this.list = list;
>>
>> add(new Label("mylabel", new PropertyModel(MyPage.this,
>> "list[1].anyProperty")));
>>
>> }
>>
>> }
>>
>> ends up in a Exception like this:
>> Last cause: No get method defined for class: class MyPage$1 expression: 1
>>
>> I also made a try with "list.1.anyProperty".
>> Not working...
>>
>> Any ideas?
>>
>> best regards
>> Patrick
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> For additional commands, e-mail: users-help@wicket.apache.org
>
Re: [SOLVED] Re: PropertyModel / PropertyResolver / Map or List
access
Posted by Boris Goldowsky <bg...@cast.org>.
I would recommend against using .object inside a PropertyModel, at least
if your application makes use of detachable models. When a component uses
the property model in your example,
new PropertyModel(MyPage.this, "list.object[1].anyProperty")
The model returned by MyPage.getList() will be attached, but when the
PropertyModel is later detached, the upstream getList() model will NOT be
detached, possibly leading to session size blowing up or serialization
errors.
It won¹t necessarily cause a problem in your case, but beware.
Boris
On 11/7/14, 3:39 AM, "Patrick Davids" <pa...@nubologic.com> wrote:
>Hi Sven, Hi Paul,
>thanx, now its working.
>
>I thought the PropertyModel/PropertyResolver will unpack the
>model-object itself, so there is no need to adress getObject by ".object".
>Maybe a small note in javadoc could help others not running into this
>issue.
>
>So...
>All ways (mentioned in javadoc) are working, tested:
>(@Sven: I think you had some typos in your mail, so I will repeat my
>working tests)
>
>new PropertyModel(MyPage.this, "list.object[1].anyProperty")
>new PropertyModel(MyPage.this, "list.object.1.anyProperty")
>
>new PropertyModel(list, "[1].anyProperty")
>new PropertyModel(list, "1.anyProperty")
>
>as well, navigation further, such an expression is working, too.
>new PropertyModel(list, "1.anyProperty[any-string-key]")
>
>
>Thanx for help... best regards
>Patrick
>P.s.
>Short question for string-key-access on maps.
>The syntax is quite equal to associative arrays in javascript.
>I like the way it is in wicket, no need paying attention for additional
>quotation marks, and its ok for me, but shouldnt it also support
>new PropertyModel(list, "1.anyProperty['any-string-key']")?
>
>
>
>Am 06.11.2014 21:01, schrieb Sven Meier:
>> Hi,
>>
>> you're telling PropertyModel to look up property "list" from MyPage, but
>> "list" is not a list, it's a model, models don't have a property "1".
>>
>> Use this instead:
>>
>> new Label("myLabel", new PropertyModel(list, "[1],anyProperty"))
>>
>> ... or:
>>
>> new Label("myLabel", new PropertyModel(MyPage.this,
>> "list.object.[1].anyProperty"))
>>
>> Regards
>> Sven
>>
>>
>>
>> On 11/06/2014 05:03 PM, Patrick Davids wrote:
>>> Hi all,
>>>
>>> the javadoc of PropertyResolver says, map or list access is possible
>>>via
>>> keys or index.
>>> Accessing an map via key is no problem, but I dont get it working for
>>> lists and index.
>>>
>>> for instance:
>>>
>>> MyPage extends Page{
>>>
>>> private IModel<List<Anything>> list;
>>>
>>> public MyPage(IModel<List<Anything>> list){
>>> super();
>>> this.list = list;
>>>
>>> add(new Label("mylabel", new PropertyModel(MyPage.this,
>>> "list[1].anyProperty")));
>>>
>>> }
>>>
>>> }
>>>
>>> ends up in a Exception like this:
>>> Last cause: No get method defined for class: class MyPage$1
>>>expression: 1
>>>
>>> I also made a try with "list.1.anyProperty".
>>> Not working...
>>>
>>> Any ideas?
>>>
>>> best regards
>>> Patrick
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>>> For additional commands, e-mail: users-help@wicket.apache.org
>>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
>> For additional commands, e-mail: users-help@wicket.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
For additional commands, e-mail: users-help@wicket.apache.org
Re: [SOLVED] Re: PropertyModel / PropertyResolver / Map or List access
Posted by Martin Grigorov <mg...@apache.org>.
Hi,
On Fri, Nov 7, 2014 at 10:39 AM, Patrick Davids <
patrick.davids@nubologic.com> wrote:
> Hi Sven, Hi Paul,
> thanx, now its working.
>
> I thought the PropertyModel/PropertyResolver will unpack the
> model-object itself, so there is no need to adress getObject by ".object".
> Maybe a small note in javadoc could help others not running into this
> issue.
>
Updated with
https://git-wip-us.apache.org/repos/asf?p=wicket.git;a=commit;h=410441f9
>
> So...
> All ways (mentioned in javadoc) are working, tested:
> (@Sven: I think you had some typos in your mail, so I will repeat my
> working tests)
>
> new PropertyModel(MyPage.this, "list.object[1].anyProperty")
> new PropertyModel(MyPage.this, "list.object.1.anyProperty")
>
> new PropertyModel(list, "[1].anyProperty")
> new PropertyModel(list, "1.anyProperty")
>
> as well, navigation further, such an expression is working, too.
> new PropertyModel(list, "1.anyProperty[any-string-key]")
>
>
> Thanx for help... best regards
> Patrick
> P.s.
> Short question for string-key-access on maps.
> The syntax is quite equal to associative arrays in javascript.
> I like the way it is in wicket, no need paying attention for additional
> quotation marks, and its ok for me, but shouldnt it also support
> new PropertyModel(list, "1.anyProperty['any-string-key']")?
>
I'd prefer to keep it simpler as now.
>
>
>
> Am 06.11.2014 21:01, schrieb Sven Meier:
> > Hi,
> >
> > you're telling PropertyModel to look up property "list" from MyPage, but
> > "list" is not a list, it's a model, models don't have a property "1".
> >
> > Use this instead:
> >
> > new Label("myLabel", new PropertyModel(list, "[1],anyProperty"))
> >
> > ... or:
> >
> > new Label("myLabel", new PropertyModel(MyPage.this,
> > "list.object.[1].anyProperty"))
> >
> > Regards
> > Sven
> >
> >
> >
> > On 11/06/2014 05:03 PM, Patrick Davids wrote:
> >> Hi all,
> >>
> >> the javadoc of PropertyResolver says, map or list access is possible via
> >> keys or index.
> >> Accessing an map via key is no problem, but I dont get it working for
> >> lists and index.
> >>
> >> for instance:
> >>
> >> MyPage extends Page{
> >>
> >> private IModel<List<Anything>> list;
> >>
> >> public MyPage(IModel<List<Anything>> list){
> >> super();
> >> this.list = list;
> >>
> >> add(new Label("mylabel", new PropertyModel(MyPage.this,
> >> "list[1].anyProperty")));
> >>
> >> }
> >>
> >> }
> >>
> >> ends up in a Exception like this:
> >> Last cause: No get method defined for class: class MyPage$1 expression:
> 1
> >>
> >> I also made a try with "list.1.anyProperty".
> >> Not working...
> >>
> >> Any ideas?
> >>
> >> best regards
> >> Patrick
> >> ---------------------------------------------------------------------
> >> To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> >> For additional commands, e-mail: users-help@wicket.apache.org
> >>
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: users-unsubscribe@wicket.apache.org
> > For additional commands, e-mail: users-help@wicket.apache.org
> >
>