MVP + GIN + Storing User Data in client Code?
vehdra music
public void onModuleLoad() {
ginjector.getUserServiceAsync().getCurrentUser(new AsyncCallback<UserModel>() {
public void onSuccess(UserModel result) {
// store user data somewhere
// display the right gui depending on the user rol
}
public void onFailure(Throwable caught) {
// do some
}
});
2. To store in client code the user data, I was trying to do something like Thomas said here http://stackoverflow.com/questions/5827534/cross-activity-references-using-gwt-with-gin
I've created a CurrentUserProvider class and i've binded my UserModel to my CurrentUserProvider. And in my Ginjector i've created a method
CurrentUserProvider getCurrentUser();
Then in my rpc callback I put the the user data in the provider.
ginjector.getUserServiceAsync().getCurrentUser(new AsyncCallback<UserModel>() {
public void onSuccess(UserModel result) {
// store user data somewhere
ginjector.getCurrentUser().setCurrentValue(result);
}
.......
It works in some kind, but I don't see it so clean. I believe that it could be done in a nicer way. Can you please give any idea about how are you handling this in your projects?
On the other side I have the trouble about displaying one or another gui depending on the user's rol.
In my Ginjector I have this method AppLayoutView getAppLayout(); that returns me my applayout. Basically, when the user is root haves one menu, and when the user is not root, haves another menu. Show I create my menu by code and do something like this in the view?
if (currentUserProvider.get().getRol().equals(ROLE_ROOT)) {
// create one menu
} else {
// create normal user menu
}
And finally... I have a MvpModule (GinModule) where I have this provider:
@Provides
@Singleton
public PlaceHistoryHandler getHistoryHandler(PlaceController placeController, PlaceHistoryMapper historyMapper, EventBus eventBus) {
PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);
historyHandler.register(placeController, eventBus, new CompaniesListPlace());
return historyHandler;
}
Where I want to get the user to right place, again, depending on the user's role. I've tried doing something like this:
@Provides
@Singleton
public PlaceHistoryHandler getHistoryHandler(PlaceController placeController, PlaceHistoryMapper historyMapper, EventBus eventBus, CurrentUserProvider currentUserProvider) {
PlaceHistoryHandler historyHandler = new PlaceHistoryHandler(historyMapper);
if (currentUserProvider.get().getRole().equal(BLA)) {
historyHandler.register(placeController, eventBus, new CompaniesListPlace());
else {
// go to another place
}
return historyHandler;
}
But what is happening to me is that this method is being called before that my rpc returns me the user data. So currentUserProvider is not initialized.
How can I handle this?
Any help would preciated!
Alex Dobjanschi
}