validation question

[Warner Onstine <sw...@warneronstine.com>]

So, I decided to check out Tapestry again (thanks to Erik and his 
rantings) and so far I like the changes that I see (I looked at it 
before it had gone to OGNL for it's binding). I especially like the 
WebOGNL like capabilities of defining bindings in the HTML (I know it's 
not the purist point of view ;-).

Anyways, I am just trying to play around a bit and implement a simple 
login page. Right now I'm not tying to a db although that will be next. 
I just wanted to keep it as simple as possible.

So, I need validation and want to play with it a bit. So, I created all 
of my fields as ValidFields and added in all the mappings, whatnot into 
the pages. Now, I'm in the java file and want to grab the delegate. My 
question is this:
I want to validate that this user exists in the db and if the password 
matches. If one or the other fails I need to send back a custom error 
message. I can't see exactly how to do this with the delegate. Or, is 
there another way?

Thanks in advance. I've just been pouring over all the different docs, 
Web sites, whatnot for the past 2 days to get ready to play with this 
stuff, and I didn't run across anything like this (probably missed it 
somewhere).

-warner



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Re: validation question

[Colin Sampaleanu <co...@exis.com>]

Take a look at the virtual library (vlib) sample's Login page. It does 
basically what you describe here.

Warner Onstine wrote:

> So, I decided to check out Tapestry again (thanks to Erik and his 
> rantings) and so far I like the changes that I see (I looked at it 
> before it had gone to OGNL for it's binding). I especially like the 
> WebOGNL like capabilities of defining bindings in the HTML (I know 
> it's not the purist point of view ;-).
>
> Anyways, I am just trying to play around a bit and implement a simple 
> login page. Right now I'm not tying to a db although that will be 
> next. I just wanted to keep it as simple as possible.
>
> So, I need validation and want to play with it a bit. So, I created 
> all of my fields as ValidFields and added in all the mappings, whatnot 
> into the pages. Now, I'm in the java file and want to grab the 
> delegate. My question is this:
> I want to validate that this user exists in the db and if the password 
> matches. If one or the other fails I need to send back a custom error 
> message. I can't see exactly how to do this with the delegate. Or, is 
> there another way?
>
> Thanks in advance. I've just been pouring over all the different docs, 
> Web sites, whatnot for the past 2 days to get ready to play with this 
> stuff, and I didn't run across anything like this (probably missed it 
> somewhere).
>
> -warner
>
>
>
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> To unsubscribe, e-mail: tapestry-user-unsubscribe@jakarta.apache.org
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