Add Parameterized Message to ExceptionReport

[Mike Shoemaker <mi...@shoesobjects.com>]

Gang

I'm new to tapestry and I'm currently trying to catch a duplicate  
database entry(i.e. user registered twice) and I'd like to catch the  
hibernate exception and forward to the Exception Report page but  
instead of displaying the error message, instead I'd like to say "User  
already registered" or something like that.  I can't seem to find the  
right terms to plug into google to get back what I need.  Can someone  
point me to a source that shows how to do this.

Thanks
Mike

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Re: Add Parameterized Message to ExceptionReport

["Filip S. Adamsen" <fs...@fsadev.com>]

Hi Mike,

I posted about how to turn the RequestExceptionHandler into a pipeline a 
week or two ago:
http://www.mail-archive.com/search?q=RequestExceptionFilter&l=users%40tapestry.apache.org

You could use this approach, perhaps coupled with the Strategy service 
I'm talking about in one of my posts, to do what you want.

I wouldn't recommend the approach, though. It's much better - according 
to the Hibernate guys, anyhow - to check if the user already registered 
during the validateForm event and display a form error if so:

   @Property
   private String username;

   ...

   @Inject
   private UserService userService;

   ...

   @Component(id = "register")
   private Form registerForm;

   @Component(id = "username")
   private TextField usernameField;

   ...

   void onValidateFormFromRegister() {
     if (!userService.isUniqueUsername(username)) {
       registerForm.recordError(usernameField, "Username already taken.");
     }
   }

   ...

At least that's the way I do it. :)

-Filip

Mike Shoemaker skrev:
> Gang
> 
> I'm new to tapestry and I'm currently trying to catch a duplicate 
> database entry(i.e. user registered twice) and I'd like to catch the 
> hibernate exception and forward to the Exception Report page but instead 
> of displaying the error message, instead I'd like to say "User already 
> registered" or something like that.  I can't seem to find the right 
> terms to plug into google to get back what I need.  Can someone point me 
> to a source that shows how to do this.
> 
> Thanks
> Mike
> 
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tapestry.apache.org
> For additional commands, e-mail: users-help@tapestry.apache.org
> 

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