<html:form> looks at the action you identify checks if the form associated
with that action ("/user/update.do" in your case) exists in the scope
specified, and if it doesn't, creates it. Now the other html tags look for a
page scoped attribute under the default name if you don't specify the name
attribute - for example <html:text property="userName"/>.
So whats the scope of "userForm" on "/user/update.do" - is it the same as
"/user/setUp.do"?
Try adding the name attribute to your html tags:
<html:text name="userForm" property="userName"/>.
or if your "scopes" are different for userForm on different actions - make
them all the same.
Niall
----- Original Message -----
From: "Danko Desancic" <[EMAIL PROTECTED]>
To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
Sent: Friday, March 12, 2004 9:04 PM
Subject: Re: (pre)populating DynaActionForm
> This is really funny, I did output the request scope on the userForm.jsp
> and it turns out that Struts puts userForm in request scope on its own
> with all appropriate data that I set. The question is then why aren't
> they displayed in the html tags?
>
> Any ideas?
>
> Danko
>
>
> Niall Pemberton wrote:
>
> >Every thing looks fine to me. Is this the actual struts-config.xml you
are
> >trying to use - because I did notice your "/user/update" has re-direct in
> >the "Success" forward. Obviously you say the problem is with the
> >"/user/setUp" action but I ask because a re-direct would cause the kind
of
> >behaviour you describe.
> >
> >Niall
> >
> >----- Original Message -----
> >From: "Danko Desancic" <[EMAIL PROTECTED]>
> >To: "Struts Users Mailing List" <[EMAIL PROTECTED]>
> >Sent: Friday, March 12, 2004 8:26 PM
> >Subject: Re: (pre)populating DynaActionForm
> >
> >
> >
> >
> >>I tried that and it does not work. No errors though just balnk form with
> >>initial value.
> >>
> >>Thanks anyway
> >>
> >>Hubert Rabago wrote:
> >>
> >>
> >>
> >>>My bad. I didn't read your mail through; only saw the top portion.
> >>>In your setupUserAction, after you prepopulate the form, set it as a
> >>>
> >>>
> >request
> >
> >
> >>>attribute:
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>>>from SetUpUserAction.execute()
> >>>>
> >>>>
> >>>>> DynaActionForm userForm = (DynaActionForm)form;
> >>>>>
> >>>>> userForm.set("userName",user.getUserName());
> >>>>> userForm.set("password",user.getPassword());
> >>>>> userForm.set("fullName",user.getFullName());
> >>>>> userForm.set("email",user.getEmail());
> >>>>> userForm.set("status",new Integer(1));
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>> request.setAttribute("userForm",userForm);
> >>>
> >>>
> >>>
> >>>
> >>>>> forward = mapping.findForward("Success");
> >>>>> return forward;
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>It works when the form is in session scope because that will make the
> >>>
> >>>
> >whole
> >
> >
> >>>session deal with one form instance.
> >>>
> >>>hth,
> >>>Hubert
> >>>
> >>>--- Hubert Rabago <[EMAIL PROTECTED]> wrote:
> >>>
> >>>
> >>>
> >>>
> >>>>As far as I can tell, there really isn't any support for prepopulating
a
> >>>>DynaActionForm. The ff is from
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
>
>>http://jakarta.apache.org/struts/userGuide/building_controller.html#dyna_a
c
> >>
> >>
> >tion_form_classes
> >
> >
> >>>
> >>>
> >>>>"DynaActionForms are not a drop-in replacement for ActionForms. If you
> >>>>
> >>>>
> >need
> >
> >
> >>>>to access ActionForm properties in your Action, you will need to use
the
> >>>>map-style accessor, like myForm.get("name"). If you actively use the
> >>>>ActionForm object in your Action, then you may want to use
conventional
> >>>>ActionForms instead.
> >>>>
> >>>>"DynaActionForms cannot be instantiated using a no-argument
constructor.
> >>>>
> >>>>
> >In
> >
> >
> >>>>order to simulate the extra properties, there is a lot of machinery
> >>>>involved
> >>>>in their construction. You must rely on Struts to instantiate a
> >>>>DynaActionForm for you, via the ActionMapping."
> >>>>
> >>>>What I did was copy the code that RequestUtils uses to instantiate a
> >>>>DynaActionForm, and put it in a method that I can call like this:
> >>>>DynaActionForm dynaForm = createDynaActionForm("formName",
> >>>>mapping.getModuleConfig());
> >>>>
> >>>>
> >>>>
> >>>> /**
> >>>> * <p>Create the [EMAIL PROTECTED] DynaActionForm} instance identified by the
> >>>>given
> >>>> * formName.</p>
> >>>> *
> >>>> * @param formName the name used to identify the form
> >>>> * @param moduleConfig the configuration for the current module
> >>>> * @return the DynaActionForm identified by formName
> >>>> */
> >>>> public static DynaActionForm createDynaActionForm(
> >>>> String formName,
> >>>> ModuleConfig moduleConfig) {
> >>>> DynaActionForm dynaForm;
> >>>> try {
> >>>> // the code here is based on [copied from? :) ]
> >>>> // RequestUtils.createActionForm()
> >>>> FormBeanConfig formBeanConfig =
> >>>> moduleConfig.findFormBeanConfig(formName);
> >>>>
> >>>> DynaActionFormClass dynaClass =
> >>>> DynaActionFormClass.createDynaActionFormClass(
> >>>> formBeanConfig);
> >>>>
> >>>> dynaForm = (DynaActionForm) dynaClass.newInstance();
> >>>>
> >>>> if (logger.isTraceEnabled()) {
> >>>> logger.trace("inside findDynaActionForm() where
> >>>>
> >>>>
> >dynaForm="
> >
> >
> >>>>+
> >>>> dynaForm + " and formBeanConfig=" +
> >>>>formBeanConfig);
> >>>> }
> >>>>
> >>>> initializeDynaForm(formName, dynaForm, moduleConfig);
> >>>> } catch (Exception e) {
> >>>> logger.error("Exception [" + e + "," + e.getMessage() +
"]",
> >>>>e);
> >>>> // TODO what to do if we get an error initializing the
form?
> >>>> // -> right now we're just returning null
> >>>> dynaForm = null;
> >>>> }
> >>>> return dynaForm;
> >>>> }
> >>>>
> >>>> /**
> >>>> * <p>Initialize all bean properties to their initial values, as
> >>>>specified
> >>>> * in the [EMAIL PROTECTED] FormPropertyConfig} elements associated with the
> >>>> * definition of this <code>DynaActionForm</code>. Based on the
> >>>> * <code>DynaActionForm.initialize()</code> method.
> >>>> * </p>
> >>>> *
> >>>> * @param dynaForm the DynaActionForm to be initialized
> >>>> * @param moduleConfig the ModuleConfig under which this dynaForm
> >>>> *
> >>>> */
> >>>> protected static void initializeDynaForm(String name,
> >>>> DynaActionForm dynaForm,
> >>>> ModuleConfig moduleConfig)
> >>>>
> >>>>
> >{
> >
> >
> >>>> FormBeanConfig config = moduleConfig.findFormBeanConfig(name);
> >>>> if (config == null) {
> >>>> return;
> >>>> }
> >>>> FormPropertyConfig props[] = config.findFormPropertyConfigs();
> >>>> for (int i = 0; i < props.length; i++) {
> >>>> dynaForm.set(props[i].getName(), props[i].initial());
> >>>> }
> >>>> }
> >>>>
> >>>>hth,
> >>>>Hubert
> >>>>
> >>>>--- Danko Desancic <[EMAIL PROTECTED]> wrote:
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>>I am newbie to Struts and have a problem with populating
> >>>>>DynaActionForm. I have two actions: one to set up userForm and one to
> >>>>>process it. 1st one is suposed to grab user info and populate the
form.
> >>>>>The second one updates user info after the form is submitted. The
> >>>>>problem is that the from is not populated. Moreover changing the
scope
> >>>>>to "session" in action "/user/setUp" results in form being populated
> >>>>>with appropriate data. What am I doing wrong in here?
> >>>>>
> >>>>>Thanks
> >>>>>Danko
> >>>>>
> >>>>>
> >>>>>
> >>>>>from struts-config.xml
> >>>>
> >>>>
> >>>>><form-bean name="userForm"
> >>>>>type="org.apache.struts.action.DynaActionForm">that
> >>>>> <form-property name="userName" type="java.lang.String"/>
> >>>>> <form-property name="password" type="java.lang.String"/>
> >>>>> <form-property name="fullName" type="java.lang.String"/>
> >>>>> <form-property name="email" type="java.lang.String"/>
> >>>>> <form-property name="status" type="java.lang.Integer"
> >>>>>initial="0"/>
> >>>>></form-bean>
> >>>>>
> >>>>><action
> >>>>> path="/user/setUp"
> >>>>> type="myPackage.user.SetUpUserAction"
> >>>>> name="userForm"
> >>>>> scope="request"
> >>>>> validate="false">
> >>>>> <forward name="Success"
> >>>>>path="/WEB-INF/jsp/user/userForm.jsp"/>
> >>>>></action>
> >>>>>
> >>>>><action
> >>>>> path="/user/update"
> >>>>> type="myPackage.user.UpdateUserAction"
> >>>>> name="userForm"
> >>>>> scope="request"
> >>>>> validate="true"
> >>>>> input="/WEB-INF/jsp/user/userForm.jsp">
> >>>>> <forward name="Success" path="/user/edit.do"
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>redirect="true"/>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>></action>
> >>>>>
> >>>>>
> >>>>>
> >>>>>from SetUpUserAction.execute()
> >>>>
> >>>>
> >>>>> DynaActionForm userForm = (DynaActionForm)form;
> >>>>>
> >>>>> userForm.set("userName",user.getUserName());
> >>>>> userForm.set("password",user.getPassword());
> >>>>> userForm.set("fullName",user.getFullName());
> >>>>> userForm.set("email",user.getEmail());
> >>>>> userForm.set("status",new Integer(1));
> >>>>>
> >>>>> forward = mapping.findForward("Success");
> >>>>> return forward;
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>from userForm.jsp
> >>>>
> >>>>
> >>>>><html:form action="/user/update.do">
> >>>>><table cellpadding="2" cellspacing="2" border="1" width="800px">
> >>>>> <tr>
> >>>>> <td class="fieldHeader" colspan="4">UPDATE USER</td>
> >>>>> </tr>
> >>>>> <tr>
> >>>>> <td class="fieldName">Username</td>
> >>>>> <td><html:text property="userName"/></td>
> >>>>> </tr>
> >>>>> ......
> >>>>> <tr>
> >>>>> <td class="fieldName">Status</td>
> >>>>> <td><html:radio property="status" value="1"/>Active  
> >>>>><html:radio property="status" value="0"/>Inactive </td>
> >>>>> </tr>
> >>>>> <tr>
> >>>>> <td colspan="4" class="fieldName" align="center">
> >>>>> <html:submit value="UPDATE"/>
> >>>>> </td>
> >>>>> </tr>
> >>>>></table>
> >>>>></html:form>
> >>>>>
> >>>>>
> >>>>>---------------------------------------------------------------------
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> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>>
> >>>>__________________________________
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