Hi
Thanks for your answer but i do not understand what :
hidden static 'page' variable in the JSP
Please note that if i submit a form i sent it along with page parameter.
And if form is not valid i do not go to any JSP page - i am forwarding to
previous ACTION.
Because of autovalidation i am stuck in validation() method of my session
ActionForm. Because page parameter is not modified,
my previous action execute method can not be invoked because validation is
not sucessful - but it must be sucessful !!!, cause i am in the previous
step, where i do not wanna to be interested in validation of properties that
must be checked in next step.
2006/5/6, Richard Yee <[EMAIL PROTECTED]>:
Jakub,
I think the more elegant solution is to do the validations in the
ActionForm validate method and also use a hidden static 'page' variable
in the JSP. Your Action.execute method should be fairly small and mainly
have code that calls business delegates and that necessary for
determining where to forward to.
-Richard
Jakub Milkiewicz wrote:
> Hi
> I have a wizzard application with 5 screens. All user inputs are
> collected
> in one bean, which is named: viewBean and is stored in HTTP session.
> So each action has the same formBean - viewBean.
> I use commons-validator and viewBean properties to validate are
> present in
> validation.xml with page attributes.
> ViewBean extends ValidatorForm and it's validation occurs
> automatically - i
> have validation set to true for all ACTIONS.
> The structure of my app is:
> Populate view -> jsp ->populate view ->jsp ->populate view -> jsp ...
> Population of view happens in ACTION class and can consists of
retrieving
> some data from DB, sets these data in HTTP request.
> After population process i forward to appropriate jsp to give user a
> chance
> to fill the form and to present population process results as for
example
> options in <html:select>.
> If form is correct i go to another action which populate view for a next
> screen (jsp).
> If form is not filled correctly i need to show it again, but i can not
> forward to jsp - i need to forward to action that prepares the form -
> that's
> why i have my input parameter of <action> tag set to action which
> populate
> the view - previous action.
> I have a problem with page attribute. Please take a look at the sample
of
> processing in my app:
> ACTION1 -> JSP1 ->ACTION2 -> JSP2 ->Action3 ->JSP3 ...
> Let's assume that user submits form in JSP2 to action3. After ActionForm
> bean population, page property is set to 2. Next, validation fails in
> Action3 and input parameter of <action3> forwards user to ACTION2.
> Before execute method in Action2 is invoked, ActionForm (viewBean)
> validation occurs. The page attribute is still set to 2 ! and
> commons-validator tries to validate properties that has page attribute
> set
> to 2.Obviously validation fails and control is forwarded to Action1.
> Action1
> also has validation set to true and validation of ActionForm occurs
again
> with page =2.
> Validation fails and control is forwarded to ...
> Does anyone have any idea to solve the problem.
> My idea is to not to use hidden page parameter in each jsp action but
set
> page property of viewBean in each Action: for ACTION2 sets it to 2, for
> Action3 sets it to 3 ...
> and to override validate method in viewBean:
>
> public ActionErrors validate(
> ActionMapping mapping,
> HttpServletRequest request) {
> ActionErrors errors = super.validate(mapping,request);
> if(errors != null && errors.size() > 0 )
> page--;
> return errors;
> }
>
> Maybe someone knows more elegant solution, or maybe architecture of my
> app
> isn't valid.
>
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