Somehow there are a lot of random things happening here and I am getting really confused ;) It will be difficult to explain these problems but let's give it a go.
I've tried to debug my code with Eclipse which after some initial struggle worked fine. So I found that somehow in GameVersionServiceImpl.write() the user I logged in with ([email protected]) was always identified as a GUEST. I figured that this was the reason I was never able to actually change any objects on the server. So I tried to log in with other users and realised that I was always logged in as a GUEST. This was the first thing that didn't make sense. Remark: I was actually able to load the GameEdit form properly. Then I added an anchor with a link to the GameEditBuilder for the test game to different spots in the menu. Very strangely, these anchors didn't turn up, even after a full clean of the project in Eclipse. I also realised during debugging that somehow a reload of the page would not go through MugleUiBuilder.buildToolsPanel(). This was the second thing that didn't make sense. I left Eclipse and went back to building the project with ant from the command line which is probably the way to go. Now I do get to see these anchors I have created. But when I open http://127.0.0.1:8080/#!/test/test/+edit I get this message: The response could not be deserialized The code for loading the achievements is the following one: game.getAchievements( new AsyncCallback<Set<Achievement>> () { public void onFailure(Throwable error) { containerPanel.add(new Label(error.getMessage())); } public void onSuccess(Set<Achievement> result) { achievements = new ArrayList<Achievement>(); achievements.addAll(result); } }); I will try on and see what I can make of this but maybe you have an idea where these problems might come from, as strange as they are. On Wed, May 18, 2011 at 9:19 PM, Prageeth Silva <[email protected]>wrote: > How can I find out the maximum allowed length of game name and description, >> for example? I would like to restrict the textbox input accordingly. >> > > As far as I remember, we have allowed any length on the backend, it's > simply a string that already doesn't exist. > > When modifying the name or description of a game, do I need to check that >> the string is a valid one (e.g. not an empty string) or is that going to >> happen in the backend? >> > > As to editing names and descriptions. Developers are not allowed to change > the "name" (referring to the unique URL name given for a game, user, > devteam, etc). > However, the users are allowed to change their Full Name, and similar rules > apply for games and dev teams. This means, potentially the description can > be empty as far as the > backend if concerned. Come to think of it, I'm not quite sure if this is > the best option, but for now, I think the checking for empty strings should > be done on client no matter what. > > >> When modifying fields of model objects, is the backend going to check >> whether the current user actually has the right to do so? >> > > Yes, we have checks on the backend that actually checks read/write access > of the current user. This applies to each object as a whole and also fields > as well. > For exmaple, a GUEST user has permission to edit his User object, as he/she > should be able to modify their Full Name. But when saving the object back in > the database, > we allow only the Full Name (and other certain fields) to be > updated/modified. All this happens in the backend and also returns an > updated copy of the same object. > And if a modification was discarded due to lack of write permission, this > can be checked on the returned object. > > How can I best check whether the current user is allowed to see the game >> edit view for a particular game? >> > > There's no particular service method for this yet, but I think this is > something important for all editable objects. > I shall get started on this soon. > > To change a field of a model class in the datastore, is it correct to do >> something like this: >> gameVersion.setFullName("bla"); >> gameVersion.write(new AsyncCallback<GameVersion>() { >> ... >> }); >> > > This seems correct to me. > > >> Somehow the onSuccess method of my callback object is called but the value >> in the datastore isn't changed. I login with the user matt, who appears to >> be linked to devteam test and game test, and call the following URL to >> display the game edit view (which at this moment only consists of a text box >> for the name of the game): >> http://127.0.0.1:8080/#!/test/test/+edit<http://127.0.0.1:8080/#%21/test/test/+edit> > > > I'll check on this as well. > > >> Everytime I load this URL for the first time or hit the browser refresh >> button, I receive the following very weird exception: >> >> Fc is null stack: Ic("test")@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1347Id("!/test/test/+edit",[object >>> Object],[object Object])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1356Fd([object >>> Object],[object Object])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1367Yb([object >>> Object])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1376RE([object >>> Object],[object Object])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1362Uq([object >>> Object],[object Object])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1227Ar([object >>> XMLHttpRequest])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1379([object >>> Event])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:998Fl((function >>> () {b.W(c);}),[object XMLHttpRequest],[object Arguments])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:818Il((function >>> () {b.W(c);}),[object XMLHttpRequest],[object Arguments])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1054([object >>> Event])@ >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1053fileName: >>> http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.htmllineNumber: >>> 1347 >>> >> >> Has anyone seen this somewhere already? This doesn't happen if I move to a >> different page first and then type the URL to edit the game into the browser >> address bar and hit enter. >> >> > I haven't seen this though. I have a feeling it's to do with the history > token, best is to check with Scott. > > -- > *Prageeth Silva* >
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