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 (matt@xxxxxxxxxxx
) 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 <prageethsilva@xxxxxxxxx
> 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
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:1347
Id("!/test/test/+edit",[object Object],[object Object])@http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1356
Fd([object Object],[object Object])@http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1367
Yb([object Object])@http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1376
RE([object Object],[object Object])@http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1362
Uq([object Object],[object Object])@http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:1227
Ar([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:998
Fl((function () {b.W(c);}),[object XMLHttpRequest],[object
Arguments])@http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html:818
Il((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:1053
fileName: http://127.0.0.1:8080/mugle/129D7154D4CA62DF77704779CB590D6C.cache.html
lineNumber: 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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