hi, thanks a lot.
I have done it with a LDM and overriding the isVisible and onDetach method:
model = new LoadableDetachableModel<List<String>>() {
@Override
protected List<String> load() {
List<String> locationsNotInRoute = Lists.newArrayList();
List<String> locationsInRoute = Lists.newArrayList();
for (Route route : routingModel.getObject()) {
for (Location location : route.getLocations()) {
locationsInRoute.add(location.getOntologicalName());
}
}
for (Poi poi : user.getSelectedPois()) {
if (!locationsInRoute.contains(poi.getOntologyLocalName()))
{
locationsNotInRoute.add(poi.getName());
}
}
return locationsNotInRoute;
}
};
ListView<String> locationsNotInRoutesView = new
ListView<String>("locationsNotInRoutes", model) {
@Override
protected void populateItem(ListItem<String>
listItem) {
listItem.add(new Label("locationNotInRoute",
listItem.getModel()));
listItem.setOutputMarkupId(true);
}
@Override
public boolean isVisible() {
return calculationDone &&
model.getObject().size() > 0;
}
};
@Override
public void onDetach() {
if(model != null)
model.detach();
super.onDetach();
}
> Am 10.05.2015 um 14:25 schrieb Tobias Soloschenko
> <[email protected]>:
>
> Hi,
>
> have a look at models in the user guide there are some good approaches to
> update them.
>
> Visibility:
>
> ResourceLink pl = new ResourceLink("pdfLink", new
> ByteArrayResource("application/pdf")) {
>
> // visibility method
>
> }
>
> kind regards
>
> Tobias
>
>> Am 10.05.2015 um 14:15 schrieb Chris <[email protected]>:
>>
>> Hi Tobias,
>>
>> I have followed your approach (update from parent) and it works. Thanks a
>> lot.
>> But could you show me also how to overwrite the visibility directly in the
>> ResourceLink?
>> ResourceLink pl = new ResourceLink("pdfLink", new
>> ByteArrayResource("application/pdf") {…}?
>>
>> By the way, in the panel I have added another list view which does not use
>> the model of the panel but has to calculate the model dynamically.
>> With the following code, it seems also to be only called once in the
>> constructor but not via ajaxUpdate. How to change this?
>>
>> ListModel<String> listModel = new ListModel<String>() {
>> @Override
>> public List<String> getObject() {
>>
>> Thanks, Chris
>>
>>
>>> Am 09.05.2015 um 20:38 schrieb Tobias Soloschenko
>>> <[email protected]>:
>>>
>>> In your snippet you put the isVisible in the ByteArrayResource. That's why
>>> you get the error message - move it to your ResourceLink
>>>
>>> One easy way to update from parent would be: make a method in your panel
>>> which returns your link then make your panel a field in the parent and call
>>> the getter in the callback and add the link to your AjaxRequestTarget there.
>>>
>>> kind regards
>>>
>>> Tobias
>>>
>>>> Am 09.05.2015 um 20:19 schrieb Chris <[email protected]>:
>>>>
>>>> Hi,
>>>>
>>>> thanks, I am getting the message "method does not override method from its
>>>> superclass."
>>>>
>>>> The problem is that I do not have the callback method in this panel but in
>>>> its parent; I would need to have a getter method so that I can directly
>>>> access the resource link from the panel instance and change its visibility.
>>>>
>>>> ResourceLink pl = new ResourceLink("pdfLink", new
>>>> ByteArrayResource("application/pdf") {
>>>>
>>>> @Override
>>>> protected boolean isVisible() {
>>>> return ....;
>>>> }
>>>>
>>>> });
>>>>
>>>> Chris
>>>>
>>>>
>>>>> Am 09.05.2015 um 20:12 schrieb Tobias Soloschenko
>>>>> <[email protected]>:
>>>>>
>>>>> Yes - should work because isVisible is inherited from component:
>>>>>
>>>>> http://ci.apache.org/projects/wicket/apidocs/6.0.x/org/apache/wicket/markup/html/link/ResourceLink.html
>>>>>
>>>>> But watch out not to put in expensive calls in it! The user guide is also
>>>>> mentioning a lot about that topic:
>>>>>
>>>>> https://wicket.apache.org/guide/guide/bestpractices.html#bestpractices_5
>>>>>
>>>>> At this place it is good to mention the new location of the guide:
>>>>>
>>>>> http://ci.apache.org/projects/wicket/guide/6.x/
>>>>>
>>>>> http://ci.apache.org/projects/wicket/guide/7.x/
>>>>>
>>>>> kind regards
>>>>>
>>>>> Tobias
>>>>>
>>>>>> Am 09.05.2015 um 19:58 schrieb Chris <[email protected]>:
>>>>>>
>>>>>> Hi Tobias,
>>>>>>
>>>>>> thanks! Can the isVisible method be directly overridden also by a
>>>>>> ResourceLink?
>>>>>>
>>>>>> ResourceLink pl = new ResourceLink(..) {
>>>>>> protected boolean isVisible() {…}
>>>>>> }
>>>>>> Chris
>>>>>>
>>>>>>
>>>>>>> Am 09.05.2015 um 19:46 schrieb Tobias Soloschenko
>>>>>>> <[email protected]>:
>>>>>>>
>>>>>>> Hi,
>>>>>>>
>>>>>>> the constructor of your panel is only called at a normal request - you
>>>>>>> have to set the visibility of your link in the ajax callback via
>>>>>>> AjaxRequestTarget.
>>>>>>>
>>>>>>> 1. setOutputMarkupId and setOutputMarkupPlaceholder of the link to true
>>>>>>> (in your constructor)
>>>>>>>
>>>>>>> 2. set the visibility to your component in the callback method (based
>>>>>>> on your Model)
>>>>>>>
>>>>>>> 3. add the component to the AjaxRequestTarget so that it is updated
>>>>>>>
>>>>>>> Another solution would be to override the isVisible method and return
>>>>>>> the visibility based on your model and then only add the component to
>>>>>>> the AjaxRequestTarget.
>>>>>>>
>>>>>>> kind regards
>>>>>>>
>>>>>>> Tobias
>>>>>>>
>>>>>>>> Am 09.05.2015 um 19:29 schrieb Chris <[email protected]>:
>>>>>>>>
>>>>>>>> Hi all,
>>>>>>>>
>>>>>>>> currently, the visibility of the resource link is not updated when the
>>>>>>>> parent component of the panel is rendered again based on an ajax call.
>>>>>>>>
>>>>>>>> How can the visibility set dynamically based on the model’s data?
>>>>>>>>
>>>>>>>> Thanks, Chris
>>>>>>>>
>>>>>>>> public SomePanel(String id, final IModel<List<A>> model) {
>>>>>>>> super(id, model);
>>>>>>>>
>>>>>>>> ResourceLink pl = new ResourceLink("pdfLink", new
>>>>>>>> ByteArrayResource("application/pdf") {...}
>>>>>>>> pl.setVisible(routingModel.getObject().get(0).getElements().size() >
>>>>>>>> 0);
>>>>>>>> ...
>>>>>>>> }
>>>>>>>> ---------------------------------------------------------------------
>>>>>>>> To unsubscribe, e-mail: [email protected]
>>>>>>>> For additional commands, e-mail: [email protected]
>>>>>>>
>>>>>>> ---------------------------------------------------------------------
>>>>>>> To unsubscribe, e-mail: [email protected]
>>>>>>> For additional commands, e-mail: [email protected]
>>>>>
>>>>> ---------------------------------------------------------------------
>>>>> To unsubscribe, e-mail: [email protected]
>>>>> For additional commands, e-mail: [email protected]
>>>>
>>>>
>>>> ---------------------------------------------------------------------
>>>> To unsubscribe, e-mail: [email protected]
>>>> For additional commands, e-mail: [email protected]
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: [email protected]
>>> For additional commands, e-mail: [email protected]
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: [email protected]
>> For additional commands, e-mail: [email protected]
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: [email protected]
> For additional commands, e-mail: [email protected]
>
