Hi, I tried to reproduce the error with a quickstart project but was not successful. The quickstart is running fine with Google Analytics and PageableListView.
I think that the project is to complex and the error is somewhere else. The only solution I can imagine is a detailed explanation of my problem with my new findings. May be, someone had the same problem or has an idea where I could search for the error. I hope that someone reads the following explanation and has an idea. I would be very thankful. My problem: - I added Google Analytics to my page and have a PageableListView on my results page. - I have 60 results for my PageableListView and show 10 entries per page. When the page is rendered, the PageableListView is constructed and show the first 10 entries. - The PagingNavigator show 6 pages of entries. The error: - When I click on one of the links of the PagingNavigator, the entries of the PageableListView are empty. I checked the results that were delivered to the PageableListView. When the PageableListView is constructed, the 60 results are filled and not empty. After clicking on one of the links in the PagingNavigator, the results are empty!!!!! I saw the empty results in the DebugBar and with an additional System.out.println within the populateItem method of the PageableListView. I would be very thankful, if someone has an idea or knows another solution that I can try. I try to solve the error since more than 2 weeks and have no new clue. Many thanks, Andre On Tue, 17 Apr 2012 22:31:27 +0200 Andre Schütz <[email protected]> wrote: > Hi, I will try to complete that in the next days and > attach the quickstart as an answer. > > Thank you for the help, > Andre > > On Mon, 16 Apr 2012 22:57:11 +0200 > Bas Gooren <[email protected]> wrote: > > > Hi, > > > > Can you build a small quickstart so I can have a look at things when > > they are not working? > > So just the bare minimum where it's not working: your page that is not > > working with a dummy model (e.g. with hardcoded results). > > > > Bas > > > > Op 16-4-2012 20:50, schreef Andre Schütz: > > > Hi, > > > > > > I tried with super.renderHead..., but the result is the > > > same. The PageableListView is empty after clicking on > > > one of links in the PagingNavigator. > > > > > > Additinally, I fodun out that the elements (listItem) are > > > empty when I click on one of the links in the PagingNavigator. > > > They are filled, when the PageableListView is build. > > > Any idea why how that could happen? > > > > > > Andre > > > > > > On Fri, 13 Apr 2012 10:29:41 +0200 > > > Bas Gooren<[email protected]> wrote: > > > > > >> Hi, > > >> > > >> What happens if you change that to: > > >> > > >> @Override > > >> public void renderHead(HeaderResponse response) { > > >> super.renderHead(response); > > >> String script = "var _gaq = _gaq || ..."; > > >> response.renderJavaScript(script, null); > > >> } > > >> > > >> ? (note that I added a call to super.renderHead()); > > >> > > >> Bas > > >> > > >> Op 11-4-2012 23:08, schreef Andre Schütz: > > >>> Hi, > > >>> > > >>> I implemented your version but still I get the same error, if > > >>> I have the Google Analytics Code in the head. > > >>> > > >>> Could it be an error with the way I insert the Google > > >>> Analytics Code? I do it in the following way. > > >>> > > >>> In my WebPage class I overwrite the following method: > > >>> > > >>> @Override > > >>> public void renderHead(HeaderResponse response) { > > >>> String script = "var _gaq = _gaq || ..."; > > >>> response.renderJavaScript(script, null); > > >>> } > > >>> > > >>> Andre > > >>> > > >>> On Wed, 11 Apr 2012 11:38:52 +0200 > > >>> Bas Gooren<[email protected]> wrote: > > >>> > > >>>> Well, for starters I wonder why you are using multiple > > >>>> LoadableDetachableModels in a Vector? > > >>>> > > >>>> What we do 99% of the time is this: > > >>>> - Wrap the entire resultset in a LDM > > >>>> - Feed that LDM to a ListView or a variant (we have a custom > > >>>> RepeatingView for paged database listings) > > >>>> - Use PropertyModels inside the repeater item(s) (or not, since the > > >>>> ListView will refresh itself anyway) > > >>>> > > >>>> I'm pretty sure you don't need setReuseItems(true) in this case; The > > >>>> only reason I've seen where it's required on a ListView is when you use > > >>>> it inside a form and need form validation to work. Since I don't see > > >>>> any > > >>>> form fields inside your listview I guess this is not the case. > > >>>> > > >>>> I also wonder why you had "datacontainer.setVersioned(false)"? > > >>>> > > >>>> E.g.: > > >>>> > > >>>> private void displayResults(IModel<List<DefaultSearchResult>> > > >>>> results, int entriesPerPage) { > > >>>> WebMarkupContainer datacontainer = new > > >>>> WebMarkupContainer("listviewContainer"); > > >>>> datacontainer.setOutputMarkupId(true); > > >>>> add(datacontainer); > > >>>> > > >>>> PageableListView<DefaultSearchResult> listview = new > > >>>> PageableListView<DefaultSearchResult>("listview", results, > > >>>> entriesPerPage) { > > >>>> StringBuilder sb; > > >>>> > > >>>> @Override > > >>>> protected void populateItem(ListItem<DefaultSearchResult> > > >>>> item) { > > >>>> DefaultSearchResult s = item.getModelObject(); > > >>>> > > >>>> // Either (A) > > >>>> item.add(new ExternalLink("title", new > > >>>> PropertyModel(item.getModel(), "title")); > > >>>> // Or (B) > > >>>> item.add(new ExternalLink("title", s.getTitle()); > > >>>> > > >>>> item.add(new Label("description", new > > >>>> PropertyModel(item.getModel(), "description"))); > > >>>> item.add(new Label("time", > > >>>> s.getTime()).setEscapeModelStrings(false)); > > >>>> } > > >>>> }; > > >>>> > > >>>> datacontainer.add(listview); > > >>>> AjaxPagingNavigator apn = new > > >>>> AjaxPagingNavigator("navigator", listview){ > > >>>> @Override > > >>>> protected void onAjaxEvent(AjaxRequestTarget target) { > > >>>> super.onAjaxEvent(target); > > >>>> target.appendJavaScript("scrollTo(0,0)"); > > >>>> } > > >>>> }; > > >>>> datacontainer.add(apn); > > >>>> } > > >>>> > > >>>> > > >>>> > > >>>> > > >>>> Op 11-4-2012 11:22, schreef [email protected]: > > >>>>> Hi, > > >>>>> > > >>>>> thank you for the answer. > > >>>>> > > >>>>> The "they are not completely empty" means the following. My results > > >>>>> variable > > >>>>> is a Vector that contains LoadableDetachableModel's in the form of the > > >>>>> LoaableListingEntryModel. This model contains a class that has two > > >>>>> variables > > >>>>> that I access with getResults() and getTime(). > > >>>>> The content of the getResults() variable is a class that implements > > >>>>> the Serializable > > >>>>> interface. The getTime() variable just has a Vector with time strings. > > >>>>> > > >>>>> Now comes the interesting part. When I click on one of the links from > > >>>>> the > > >>>>> PagingNavigator, the content of the getTime() variable is displayed > > >>>>> in each > > >>>>> single ListItem. The getResults() class is empty. The content of the > > >>>>> getResults() > > >>>>> class is only shown after a page reload and once again empty after > > >>>>> clicking > > >>>>> on one of the links from the PagingNavigator. > > >>>>> That's the reason why I said it is "not completely empty". > > >>>>> > > >>>>> I know that there are 60 results to display. The PagingNavigator > > >>>>> shows 6 > > >>>>> links for 10 entries per page. But after clicking on one of the > > >>>>> links, the objects > > >>>>> from the getResults() class are empty. > > >>>>> > > >>>>> Any idea? > > >>>>> Andre > > >>>>> > > >>>>> ----- Original Message ----- > > >>>>> From: [email protected] > > >>>>> To: [email protected] > > >>>>> Date: 11.04.2012 00:51:38 > > >>>>> Subject: Re: Page Expired with Google Analytics Tracking Code > > >>>>> > > >>>>> > > >>>>>> Hi, > > >>>>>> > > >>>>>> It sounds a lot like you are not using models properly. E.g. your > > >>>>>> "results" method parameter has a length which overflows the page size > > >>>>>> (and thus the pagingnavigator renders page links), but on a second > > >>>>>> request the contents of "results" are null/empty? > > >>>>>> > > >>>>>> Try debugging PageableListView#populateItem() and check what its > > >>>>>> model > > >>>>>> points to. > > >>>>>> > > >>>>>> Can you be more specific with regard to "they are not completely > > >>>>>> empty"? > > >>>>>> What exactly do you see, and what do you expect? > > >>>>>> > > >>>>>> Kind regards, > > >>>>>> > > >>>>>> Bas > > >>>>>> > > >>>>>> Op 10-4-2012 22:19, schreef Andre Schütz: > > >>>>>>> Hi, > > >>>>>>> > > >>>>>>> nobody an idea why the PageableListView is empty after clicking > > >>>>>>> on one of the links from the PagingNavigator? > > >>>>>>> After reloading of the page, the PageableListView is filled and > > >>>>>>> once again empty when I click on oe of the links from the > > >>>>>>> PagingNavigator. > > >>>>>>> > > >>>>>>> It seems, that the Listitem's are empty when I click on one of > > >>>>>>> the links in the PagingNavigator. But there are definitely more > > >>>>>>> items than just for one page and the PagingNavigator shows 6 > > >>>>>>> possible pages. > > >>>>>>> > > >>>>>>> Thanks, > > >>>>>>> Andre > > >>>>>>> > > >>>>>>> On Mon, 9 Apr 2012 19:44:34 +0200 > > >>>>>>> Andre Schütz<[email protected]> wrote: > > >>>>>>> > > >>>>>>>> Hello, > > >>>>>>>> > > >>>>>>>> I tried your approach and could find one mistake in my code. > > >>>>>>>> After the stepwise adding of the components to my results page, > > >>>>>>>> I found an error in two of my classes that are used on that page. > > >>>>>>>> These two classes did not implement the Serializable interface. > > >>>>>>>> I added the interface to these two classes and the PageExpired > > >>>>>>>> error was gone. > > >>>>>>>> > > >>>>>>>> But there is still another error. My PageableListView does not > > >>>>>>>> display the results when I click on one of the links in the > > >>>>>>>> AjaxPagingNavigator. The first page is displayed but the other > > >>>>>>>> pages in the list are nearly empty. > > >>>>>>>> They are not completely empty. I have 3 elements in an item of > > >>>>>>>> the PageableListView populateItem Method that must be filled > > >>>>>>>> in the html page. > > >>>>>>>> The elements are title, description and time. > > >>>>>>>> > > >>>>>>>> My code looks as follows: > > >>>>>>>> > > >>>>>>>> /*************** > > >>>>>>>> * Code > > >>>>>>>> */ > > >>>>>>>> > > >>>>>>>> private void displayResults(Vector<LoadableListingEntryModel> > > >>>>>>>> results, int entriesPerPage) { > > >>>>>>>> WebMarkupContainer datacontainer = new > > >>>>>>>> WebMarkupContainer("listviewContainer"); > > >>>>>>>> datacontainer.setOutputMarkupId(true); > > >>>>>>>> add(datacontainer); > > >>>>>>>> > > >>>>>>>> PageableListView listview = new > > >>>>>>>> PageableListView("listview", results, entriesPerPage) { > > >>>>>>>> StringBuilder sb; > > >>>>>>>> > > >>>>>>>> @Override > > >>>>>>>> protected void populateItem(ListItem item) { > > >>>>>>>> if (item != null) { > > >>>>>>>> LoadableListingEntryModel model = > > >>>>>>>> (LoadableListingEntryModel)item.getModelObject(); > > >>>>>>>> DefaultSearchResult s = > > >>>>>>>> model.getObject().getResult(); > > >>>>>>>> String description = s.getDescription(); > > >>>>>>>> String title = s.getTitle(); > > >>>>>>>> > > >>>>>>>> item.add(new ExternalLink("title", title)); > > >>>>>>>> item.add(new Label("description", description)); > > >>>>>>>> item.add(new Label("time", > > >>>>>>>> s.getTime()).setEscapeModelStrings(false)); > > >>>>>>>> } > > >>>>>>>> } > > >>>>>>>> }; > > >>>>>>>> > > >>>>>>>> listview.setReuseItems(true); > > >>>>>>>> datacontainer.add(listview); > > >>>>>>>> AjaxPagingNavigator apn = new > > >>>>>>>> AjaxPagingNavigator("navigator", listview){ > > >>>>>>>> @Override > > >>>>>>>> protected void onAjaxEvent(AjaxRequestTarget > > >>>>>>>> target) { > > >>>>>>>> super.onAjaxEvent(target); > > >>>>>>>> target.appendJavaScript("scrollTo(0,0)"); > > >>>>>>>> } > > >>>>>>>> }; > > >>>>>>>> datacontainer.add(apn); > > >>>>>>>> datacontainer.setVersioned(false); > > >>>>>>>> } > > >>>>>>>> > > >>>>>>>> /*************** > > >>>>>>>> * Code > > >>>>>>>> */ > > >>>>>>>> > > >>>>>>>> The LoadableListingEntryModel was one of the two classes > > >>>>>>>> that got the Serializable interface. > > >>>>>>>> When I click on one of the links of the AjaxPagingNavigator, > > >>>>>>>> the title and the description fields are emtpy. The time > > >>>>>>>> field is filled. > > >>>>>>>> > > >>>>>>>> I checked the items and have e.g. 60 items with title, > > >>>>>>>> description and time content. But only the time content > > >>>>>>>> is displayed, when I click on one of the > > >>>>>>>> AjaxPagingNavigator links. > > >>>>>>>> > > >>>>>>>> This error only occurs, if the Google Adsense Code is > > >>>>>>>> in the site. Could it be possible, that the Ajax call of > > >>>>>>>> the PageableListView has a problem? > > >>>>>>>> > > >>>>>>>> Thanks, > > >>>>>>>> Andre > > >>>>>>>> > > >>>>>>>> On Sat, 07 Apr 2012 21:46:53 +0200 > > >>>>>>>> Bas Gooren<[email protected]> wrote: > > >>>>>>>> > > >>>>>>>>> Yes. > > >>>>>>>>> > > >>>>>>>>> Op 7-4-2012 20:37, schreef Andre Schütz: > > >>>>>>>>>> Thank you for the answer, I will try your 4 steps. > > >>>>>>>>>> > > >>>>>>>>>> Just as information. When you say, that I can make the form > > >>>>>>>>>> stateless, do you talk about the StatelessForm class? > > >>>>>>>>>> > > >>>>>>>>>> Andre > > >>>>>>>>>> > > >>>>>>>>>> On Sat, 07 Apr 2012 16:06:15 +0200 > > >>>>>>>>>> Bas Gooren<[email protected]> wrote: > > >>>>>>>>>> > > >>>>>>>>>>> Hi, > > >>>>>>>>>>> > > >>>>>>>>>>> I would suggest the following: > > >>>>>>>>>>> 1) add a very simple test page: TestPage extends WebPage, which > > >>>>>>>>>>> only has > > >>>>>>>>>>> the search form on it (nothing else!) > > >>>>>>>>>>> 2) see if that works multiple times in a row > > >>>>>>>>>>> 3) if that works, add your google analytics code > > >>>>>>>>>>> 4) repeat steps 1-2 > > >>>>>>>>>>> > > >>>>>>>>>>> In other words: eliminitate all other dependencies, so you can > > >>>>>>>>>>> test (in > > >>>>>>>>>>> isolation) if the google analytics code (or the component > > >>>>>>>>>>> you've wrapped > > >>>>>>>>>>> it in) is really the issue you are facing. > > >>>>>>>>>>> > > >>>>>>>>>>> You say that everything works ok when you add the query > > >>>>>>>>>>> parameter for > > >>>>>>>>>>> the search. Having that parameter means you have a form with > > >>>>>>>>>>> method="get"? That, to me, would indicate you can make the form > > >>>>>>>>>>> stateless, which should prevent your search from redirecting to > > >>>>>>>>>>> a > > >>>>>>>>>>> stateful url. (The /wicket/page start of the url indicates a > > >>>>>>>>>>> stateful page). > > >>>>>>>>>>> > > >>>>>>>>>>> But please start with steps 1-4 above to make sure you are > > >>>>>>>>>>> looking in > > >>>>>>>>>>> the right place for the cause of your PageExpiredException. > > >>>>>>>>>>> > > >>>>>>>>>>> Bas > > >>>>>>>>>>> > > >>>>>>>>>>> Op 7-4-2012 14:04, schreef Andre Schütz: > > >>>>>>>>>>>> Hi, > > >>>>>>>>>>>> > > >>>>>>>>>>>> I tested the page and could localize the following error: > > >>>>>>>>>>>> > > >>>>>>>>>>>> page expired: > > >>>>>>>>>>>> > > >>>>>>>>>>>> http://localhost:8080/wicket/page?7-1.IFormSubmitListener-resultsContent-searchPanel-searchForm > > >>>>>>>>>>>> > > >>>>>>>>>>>> This means. The error occurs, when I make another search via my > > >>>>>>>>>>>> search form which is a normal Form with a textfield and a > > >>>>>>>>>>>> submit > > >>>>>>>>>>>> button. But, when I change the keyword in the URL (represented > > >>>>>>>>>>>> as > > >>>>>>>>>>>> q=KEYWORD parameter), the search works without the error. > > >>>>>>>>>>>> It seems, that the Form throws the error when the Google > > >>>>>>>>>>>> Analytics > > >>>>>>>>>>>> Code is in the header. > > >>>>>>>>>>>> > > >>>>>>>>>>>> Any idea how I can solve that problem? > > >>>>>>>>>>>> > > >>>>>>>>>>>> Andre > > >>>>>>>>>>>> > > >>>>>>>>>>>> On Fri, 06 Apr 2012 19:36:28 +0200 > > >>>>>>>>>>>> Bas Gooren<[email protected]> wrote: > > >>>>>>>>>>>> > > >>>>>>>>>>>>> Hi Andre, > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> No, we have been using the tracking code for years with > > >>>>>>>>>>>>> wicket (1.3, 1.4 > > >>>>>>>>>>>>> and 1.5) with 0 issues. > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> I'm certain your Page expired error is caused by something > > >>>>>>>>>>>>> else. > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> From your description it sounds like your "search > > >>>>>>>>>>>>> results" page is > > >>>>>>>>>>>>> stateful, but no longer available when you perform a new > > >>>>>>>>>>>>> search. That > > >>>>>>>>>>>>> can happen for a variety of reasons. > > >>>>>>>>>>>>> What usually happens to narrow the problem down is to strip > > >>>>>>>>>>>>> the page as > > >>>>>>>>>>>>> far as possible, and see if it works. Incrementally add > > >>>>>>>>>>>>> components until > > >>>>>>>>>>>>> it breaks again and you will have found the culprit. > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> Another possibility is that you have non-standard settings > > >>>>>>>>>>>>> for wicket > > >>>>>>>>>>>>> session (page) management. But my guess is that this is not > > >>>>>>>>>>>>> the case. > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> Kind regards, > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> Bas > > >>>>>>>>>>>>> > > >>>>>>>>>>>>> Op 6-4-2012 19:25, schreef Andre Schütz: > > >>>>>>>>>>>>>> Hello, > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> did nobody have the same problem with the new Google > > >>>>>>>>>>>>>> Analytics code? > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> I added the code directly into the .html file of my WebPage > > >>>>>>>>>>>>>> class. > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> Andre > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>> On Thu, 5 Apr 2012 14:54:50 +0200 > > >>>>>>>>>>>>>> Andre Schütz<[email protected]> wrote: > > >>>>>>>>>>>>>> > > >>>>>>>>>>>>>>> Hello, > > >>>>>>>>>>>>>>> > > >>>>>>>>>>>>>>> we added the actual Google Analytics Tracking Code into our > > >>>>>>>>>>>>>>> Wicket application. The code is rendered on every single > > >>>>>>>>>>>>>>> page directly before the closing</head> tag. > > >>>>>>>>>>>>>>> > > >>>>>>>>>>>>>>> Our problem is the following: > > >>>>>>>>>>>>>>> Page 1 with search box -> search for something > > >>>>>>>>>>>>>>> Page 2 is a search site where the search request is done > > >>>>>>>>>>>>>>> Page 3 is the result page, where the search result is > > >>>>>>>>>>>>>>> presented > > >>>>>>>>>>>>>>> > > >>>>>>>>>>>>>>> We do: > > >>>>>>>>>>>>>>> Page 1 -> search for something > > >>>>>>>>>>>>>>> Page 2 appears and shows search progress > > >>>>>>>>>>>>>>> Page 3 appears and displays the results > > >>>>>>>>>>>>>>> Page 3 has a search box and we start another search > > >>>>>>>>>>>>>>> --> Page expired error > > >>>>>>>>>>>>>>> > > >>>>>>>>>>>>>>> Any ideas why this happens and how we can stop that? > > >>>>>>>>>>>>>>> > > >>>>>>>>>>>>>>> Thanks, > > >>>>>>>>>>>>>>> Andre > > >>>>>>>>>>>>>>> > > >>>>>>>>>>>>>>> -- > > >>>>>>>>>>>>>>> Andre Schütz<[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] > > >>>>>>>> -- > > >>>>>>>> Andre Schütz<[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] > > > > > > -- > Andre Schütz <[email protected]> > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] -- Andre Schütz <[email protected]> --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
