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https://issues.apache.org/jira/browse/WICKET-2920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12880370#action_12880370
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Jeremy Thomerson commented on WICKET-2920:
------------------------------------------
Please provide a quickstart that demonstrates this rather complex
description of an issue. Thank you.
--
Jeremy Thomerson
http://www.wickettraining.com
> Repeaters fail to correctly display after a page render where the previous
> page render was determined by the authorization strategy
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: WICKET-2920
> URL: https://issues.apache.org/jira/browse/WICKET-2920
> Project: Wicket
> Issue Type: Bug
> Components: wicket
> Affects Versions: 1.4.7
> Environment: Windows XP - Jetty/Tomcat
> Reporter: Nathan Collette
>
> First of all I want to say that this issue seems pretty similar to WICKET-943
> Here's what happens to the best of my understanding.
> A page renders with an unauthenticated user, where a ListView's
> action=Component.RENDER in IAuthorizationStrategy is based on authentication.
> The page is loaded, and the component is not rendered because the user is
> unauthenticated. Then a user clicks the login -> redirectToInterceptPage....
> However, upon returning to the page, the internalBeforeRender() method is
> called on the ListView Component, and that method calls determineVisibility()
> which is made up of 3 parts. isVisible() which returns "true",
> isVisibilityAllowed() which also returns "true" and isRenderAllowed() --
> which returns "false". A "false" that is still based upon the previous
> page's load where it checked the IAuthorizationStrategy Component.RENDER and
> determined due to unauthentication that it should not be rendered. And
> because it returns false, determineVisiblity() returns false and the
> onBeforeRender() method inside the internalBeforeRender() method is not
> called and populateItems is also then never called. After all that has
> happened, then the Component.RENDER action is checked and it determines that
> the component should be rendered...but it is too late to have the data on the
> screen load properly because the popuplateItem's was never called.
> Here are some code snippets. Note that in my particular use case the
> AuthorizationStrategy was employed on the Container wrapping the list view,
> but I also ran tests where the AuthorizationStrategy was directly on the
> ListView.
> @Authorized
> public class MemberWebMarkupContainer extends WebMarkupContainer {
>
> public MemberWebMarkupContainer(String id) {
> super(id);
> }
> }
>
> WebMarkupContainer isMember = new MemberWebMarkupContainer("isMember");
> isMember.add(new ListView<Consultant>("consultants", new
> LoadableConsultantModel()) {
>
> protected void populateItem(ListItem<Consultant> item) {
>
> Consultant consultant = item.getModelObject();
>
> item.add(new Label("name", consultant.getDisplayName()));
> item.add(new Label("phone",
> consultant.getPhoneNumber()));
> item.add(new ExternalLink("emailLink", "mailto:"; +
> consultant.getEmail(), consultant.getEmail()));
> }
> };
> };
>
> ....
>
> public class HelpCenterAuthorizationStrategy implements
> IAuthorizationStrategy, IUnauthorizedComponentInstantiationListener {
>
> @Override
> public boolean isActionAuthorized(Component component, Action action) {
>
> if(action.equals(Component.RENDER)) {
> Class<? extends Component> c = component.getClass();
> Authorized authorized = c.getAnnotation(Authorized.class);
>
> if(authorized != null) {
> return HelpCenterSession.get().isAuthenticated();
> }
> }
>
> return true;
> }
> }
> My current work-around for the problem is to modify my webMarkupContainer
> like so:
> WebMarkupContainer isMember = new MemberWebMarkupContainer("isMember") {
> /*To get
> * around the issue of the ListView not properly
> updating.
> * Methods of interest:
> Component:callOnBeforeRenderIfNotVisible
> * Component:internalBeforeRender() **/
> @Override
> protected boolean callOnBeforeRenderIfNotVisible() {
> return true;
> };
> };
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