You would usually do prepopulation in a setup form. Which scope you
place the form in depends on how you configure the action that the
form will be submitted to. For example, if you have "/showPage.do"
and "/submitForm.do", where submitForm is configured as:
<action path="/submitForm" name="myForm" ...>....</action>
Then in the action for showPage, you'd:
ModuleConfig moduleConfig =
ModuleUtils.getInstance().getModuleConfig(request);
FormBeanConfig formBeanConfig = moduleConfig.findFormBeanConfig("myForm");
DynaActionForm myForm = (DynaActionForm)
formBeanConfig.createActionForm(getServlet());
myForm.set("propName",propValue);
request.getSession().setAttribute("myForm", myForm);
If you want to use request scope, change /submitForm to:
<action path="/submitForm" name="myForm" scope="request"...>....</action>
then in showPage:
request.setAttribute("myForm", myForm);
Hubert
On Fri, 11 Mar 2005 09:18:15 -0700, Schuster Joel M Contr ESC/NDC
<[EMAIL PROTECTED]> wrote:
> I've read a number of articles about correct pre-populate forms methods,
> including the following:
>
> 1. http://www.javaworld.com/javaworld/jw-09-2004/jw-0913-struts-p3.html
> <http://www.javaworld.com/javaworld/jw-09-2004/jw-0913-struts-p3.html>
> 2. http://struts.apache.org/faqs/newbie.html#prepopulate
> <http://struts.apache.org/faqs/newbie.html#prepopulate>
> 3.
> http://www.coreservlets.com/Apache-Struts-Tutorial/Struts-Forms.html#Ex1-Ste
> p1
> <http://www.coreservlets.com/Apache-Struts-Tutorial/Struts-Forms.html#Ex1-St
> ep1>
>
> I have some questions.
>
> The first article does not talk specifics about how Lazy-Loading would be
> implemented.
>
> The second doesn't talk about how the actual pre-population would be
> implemented in the action.
>
> And the third does it in a way that's different from how others do it.
>
> Here's what I've gotten so far...
>
> There are two different ways that I see to do it.
>
> 1. Load the FormBean up in the constructor.
>
> a. This does not work in Dyna*Forms since there's no actual
> implementation
> b. This then moves the logic to the actual form bean which is not where
> it's supposed to be.
>
> 2. Load the FormBean in a precursor Action
>
> a. This works well but every example I've seen then does something like
> this:
>
> Request.getSession().setAttribute( '"formBean", bean);
>
> This seems like a bad idea since it places the bean into the session scope.
> I've tried doing this by putting it directly into request but of course the
> jsp then doesn't have access to it because the request on the Action is not
> in the same scope as the 'form'.jsp
>
> So I guess I'm at a loss on how best to pre-populate Dyna*Forms. Examples
> that have worked from your experience would be appreciated.
>
>
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