Re: validation question

2004-10-18 Thread Justy Wong 
oh I found that my implementation will let user skip my
validation and directly execute the action.

- Original Message - 
From: "Justy Wong" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Tuesday, October 19, 2004 1:48 PM
Subject: Re: validation question


> Thanks!!! I tried your last suggestion and it works fine!!!
>
> public ActionErrors validate(ActionMapping actionMapping,
HttpServletRequest
> httpServletRequest) {
> if (getCheck()==null) {
> return null;
> } else {
> return super.validate(actionMapping, httpServletRequest);
> }
> }
>
>
>
> - Original Message - 
> From: "Joe Hertz" <[EMAIL PROTECTED]>
> To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]>
> Sent: Tuesday, October 19, 2004 11:43 AM
> Subject: RE: validation question
>
>
> > > Joe, do u mean checking the field with "validwhen" using
> > > validation.xml or
> > > implement the actionForm.validate() ?
> > > I really want to use the basic struts validation framework instead of
> > > implementing validate() function to minimize the maintainence cost.
> >
> >
> > You can do it both ways.
> >
> > Use validation.xml, but ALSO define your own validate() that checks the
> > "should I validate property".
> >
> > All you have to do to get the validation framework to do it's thing is
to
> > call super.vallidate() in your own validate() method.
> >
> > -Some Other Joe
> >
> >
> >
> > -
> > To unsubscribe, e-mail: [EMAIL PROTECTED]
> > For additional commands, e-mail: [EMAIL PROTECTED]
>
>
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Re: validation question

2004-10-18 Thread Justy Wong 
Thanks!!! I tried your last suggestion and it works fine!!!

public ActionErrors validate(ActionMapping actionMapping, HttpServletRequest
httpServletRequest) {
if (getCheck()==null) {
return null;
} else {
return super.validate(actionMapping, httpServletRequest);
}
}



- Original Message - 
From: "Joe Hertz" <[EMAIL PROTECTED]>
To: "'Struts Users Mailing List'" <[EMAIL PROTECTED]>
Sent: Tuesday, October 19, 2004 11:43 AM
Subject: RE: validation question


> > Joe, do u mean checking the field with "validwhen" using
> > validation.xml or
> > implement the actionForm.validate() ?
> > I really want to use the basic struts validation framework instead of
> > implementing validate() function to minimize the maintainence cost.
>
>
> You can do it both ways.
>
> Use validation.xml, but ALSO define your own validate() that checks the
> "should I validate property".
>
> All you have to do to get the validation framework to do it's thing is to
> call super.vallidate() in your own validate() method.
>
> -Some Other Joe
>
>
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]


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Re: validation question

2004-10-18 Thread Justy Wong 
Thanks for all!!

>From Joe:
> > On the other hand, if you actually have this situation, you don't have
to
> > turn off validation -- simply implement your validation rules so that
they
> > can recognize the distinction.  For example, have all your forms submit
a
> > hidden field, and have your validation method only evaluate its
validation
> > rules if that field has a defined value. When the page is retrieved
> > without a form submission, this value is not going to be defined.

Joe, do u mean checking the field with "validwhen" using validation.xml or
implement the actionForm.validate() ?
I really want to use the basic struts validation framework instead of
implementing validate() function to minimize the maintainence cost.

>From Eddie:
> Nope.  Perhaps in time the Validation framework will evolve to be smart
> enough that it "knows" (or can) that it doesn't need to validate the form
on
> the first display.  I'm actually kind of surprised this behavior hasn't
been
> added in by now.  Seems it would be simple enough to do, but, perhaps I'm
> oversimplifying in my head.

Thanks for your answer!! that means I've no other choices apart from
changing my program

- Original Message - 
From: "Eddie Bush" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Tuesday, October 19, 2004 10:53 AM
Subject: Re: validation question


> Nice trick, Joe - hadn't thought of doing that :-)
>
> - Original Message - 
> From: "Joe Germuska" <[EMAIL PROTECTED]>
> To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> Sent: Monday, October 18, 2004 9:40 PM
> Subject: Re: validation question
>
>
> > At 10:28 AM +0800 10/19/04, Justy Wong wrote:
> >>Thx for your suggestions.
> >>
> >>>  1) 2 action mappings -- 1 with validation turned off (welcome.do) and
1
> >>with it on (login.do).
> >>
> >>that means for every action, I've to create 1 more action. but it will
> >>almost double the maintainence affort.
> >
> > In practice, it's rare that you actually have a webapp where every
single
> > page is sometimes accessed as the result of a form submission and
> > sometimes as a simple HTTP GET.  And especially unlikely that you would
> > have this to the scope where the actual dual maintenance is a serious
> > burden.  At least, in my experience, this is simply "the right way to do
> > it."
> >
> > On the other hand, if you actually have this situation, you don't have
to
> > turn off validation -- simply implement your validation rules so that
they
> > can recognize the distinction.  For example, have all your forms submit
a
> > hidden field, and have your validation method only evaluate its
validation
> > rules if that field has a defined value. When the page is retrieved
> > without a form submission, this value is not going to be defined.
> >
> > Remember that you can implement the "validate()" method of your
> > ActionForms anyway you like.
> >
> > Joe
> >
> > -- 
> > Joe Germuska[EMAIL PROTECTED]  http://blog.germuska.com
"In
> > fact, when I die, if I don't hear 'A Love Supreme,' I'll turn back; I'll
> > know I'm in the wrong place."
> >- Carlos Santana
> >
> > -
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> > For additional commands, e-mail: [EMAIL PROTECTED]
> >
>
>
>
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Re: validation question

2004-10-18 Thread Justy Wong 
Thx for your suggestions.

> 1) 2 action mappings -- 1 with validation turned off (welcome.do) and 1
with it on (login.do).

that means for every action, I've to create 1 more action. but it will
almost double the maintainence affort.

> 2) Turn validation off, and handle that in the action:

then I've to give up struts validation framework

I think these 2 suggestions are simple workaround for this problem, however,
it will break the framework in some degree
Is there any other solutions come with Struts??

Thanks!
Justy

- Original Message - 
From: "Durham David R Jr Contr 805 CSPTS/SCE" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Tuesday, October 19, 2004 1:23 AM
Subject: RE: validation question


> > The validation works fine however, when I just type the
> http://localhost:8080/login.do
> > in my browser (no submit), the validation error will show up at once.
> > I understand that it's just like I submit a form to login.do action
> without any
> > parameter. My question is, do struts provide any simple method to
> avoid this and just
> > show no error message?
>
> There's a few different ways to handle this problem.
>
> 1) 2 action mappings -- 1 with validation turned off (welcome.do) and 1
> with it on (login.do).
>
> 2) Turn validation off, and handle that in the action:
>
> login.do
>
> if (isSubmitted) {
> errors = form.validate()
> // redirect or do other authenticate work
> } else {
> return mapping.findForward("login");
> }
>
> HTH,
>
> Dave
>
>
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validation question

2004-10-18 Thread Justy Wong 
Hi,

I have a http://localhost:8080/login.do action and I want to do validation for the 
form when user submit their username & password. 

here is my setting in validation.xml:








mask
^[0-9a-zA-Z]*$




The validation works fine however, when I just type the http://localhost:8080/login.do 
in my browser (no submit), the validation error will show up at once.
I understand that it's just like I submit a form to login.do action without any 
parameter.
My question is, do struts provide any simple method to avoid this and just show no 
error message? Thanks a lot!!!

Justy