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Posted to user@struts.apache.org by Wendy Smoak <ja...@wendysmoak.com> on 2004/10/01 19:41:12 UTC
Re: Presetting Form Data
From: "Tom Holmes Jr." <to...@tomholmes.net>
> So, the way I started to handle this is call the JSP page directly with
> the form. I got the 'member' object from session and I populated the
> value field as follows:
> <html:text property="address1" value="${member.address1}"/>
> Would this be appropriate? It works except for my checkboxes.
No. Set those values in the Action code, before forwarding to the JSP.
The struts-example webapp shows how to do this-- look for the calls to
BeanUtils.copyProperties(...) that copy the values back and forth from the
DTO to the form bean.
Don't forget to write a reset method to handle those checkboxes.
--
Wendy Smoak
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Re: Presetting Form Data (SOLVED)
Posted by "Tom Holmes Jr." <to...@tomholmes.net>.
Ok, I found the problem ... I did some more searching on the Internet,
and it was a previouus, much older message which I did not see at first:
The first Action-Mapping in order to set-up the MemberAddressForm was
defined as:
<action path="/address_update"
type="com.tjh.csaa.beans.MemberAddressAction"
name="MemberAddressForm"
scope="request"
validate="false">
<forward name="choice" path="/membership/membership_choice.jsp"/>
<forward name="success" path="/membership/membership_address.jsp" />
</action>
There is another Action-Mapping that is for when the form is actually
submitted. It is defined as:
<action path="/membership_address"
type="com.tjh.csaa.beans.MemberAction"
name="memberAddressForm"
scope="request"
input="/membership/membership_address.jsp"
validate="true">
<forward name="choice" path="/membership/membership_choice.jsp"/>
<forward name="failure" path="/membership/membership_address.jsp"/>
<forward name="success" path="/membership/membership_updated.jsp"/>
</action>
SOOOOOOOOOOO, the solution is the "name"
name="memberAddressForm"
name="MemberAddressForm"
The correct one is the first one because that matches the form-bean
definition. Problem solved.
Why do my toughest problems have the simplest solution? That question
was rhetorical. Thanks for all the help and being so patient with me.
Thanks again.
Tom
Tom Holmes Jr. wrote:
> I've done a lot more research on this issue and the I found the
> web-site: http://husted.com/struts/catalog.html
> which proved to be an invaluable aid in the best practices of how to
> create a Struts-based wab-application.
>
> I also found this site which seemed to give me all the answers I needed
> or so I thought: http://www.reumann.net/struts/lesson2/step9.do
>
> So, I have a link from a JSP menu that looks like:
> http://www.mydomain.net/update_address.do
>
> The struts-config.xml has the following declared:
> In the form-bean definitions I have:
> <form-bean name="memberAddressForm"
> type="com.tjh.csaa.beans.MemberAddressForm"/>
>
> In the Action Mappings I have:
> <action path="/address_update"
> type="com.tjh.csaa.beans.MemberAddressAction"
> name="MemberAddressForm"
> scope="request"
> validate="false">
> <forward name="choice" path="/membership/membership_choice.jsp"/>
> <forward name="success" path="/membership/membership_address.jsp" />
> </action>
>
> So, the idea is like the example, that is I call the Action
> (MemberAddressAction) which is going to get my "member" (MemberDTO) from
> the session (because the user has previously logged-in) and the
> MemberDTO is now in session. So, MemberAddressAction gets this "member"
> and uses the "populate" method I wrote to transfer the data from this
> "member" into the Form-Bean (MemberAddressForm).
>
> Here is some of the code from the MemberAddressAction:
>
> HttpSession session = request.getSession();
> MemberDTO member = (MemberDTO)session.getAttribute("member");
> if( member == null)
> {
> System.out.println("user has not signed in");
> return (mapping.findForward("choice"));
> }
> else
> {
> MemberAddressForm memberForm = (MemberAddressForm)form;
> copyBeanToForm(member,memberForm);
> }
> return (mapping.findForward("success"));
>
> I can vouch for sure that the "member" (MemberDTO) does exist in session
> correctly ... however, the form does not get created and as a result is
> null. So, question is WHY?
>
> Why does this code not work and how can I correct it?
> MemberAddressForm memberForm = (MemberAddressForm) form;
>
> Thanks again for any help.
>
> Tom
>
> Tom Holmes Jr. wrote:
>
>> Thanks for the info.
>>
>> "membership_address.do" is the Action from the JSP page when I do my
>> submit. If I call the this Action with validate=true, then it's going
>> to call the FormBean Validate method first, and if anything is
>> required, then it would get errors and return to the calling page with
>> a bunch of error codes even though the user wasn't there the first
>> time. I've seen other people ask that question before.
>>
>> The Action you suggest I call, is this a new Action altogether with no
>> validation? This action could either get data from the database, or
>> if that is already done, then I could just take the data from the
>> MemberDTO and put that into the formbean as you suggest, then I would
>> automatically forward to the Membership_Address.jsp page. Is that
>> correct, or do you mean go to the same Action as when I do a submit.
>>
>> So, I won't be a bother to the list, can you re-direct me to the
>> struts-example web-app? Can I download that app from the Struts
>> web-site directly?
>>
>> Thanks again for the help.
>>
>> Tom
>>
>>
>> Wendy Smoak wrote:
>>
>>> From: "Tom Holmes Jr." <to...@tomholmes.net>
>>>
>>>> So, the way I started to handle this is call the JSP page directly with
>>>> the form. I got the 'member' object from session and I populated the
>>>> value field as follows:
>>>> <html:text property="address1" value="${member.address1}"/>
>>>> Would this be appropriate? It works except for my checkboxes.
>>>
>>>
>>>
>>>
>>> No. Set those values in the Action code, before forwarding to the JSP.
>>>
>>> The struts-example webapp shows how to do this-- look for the calls to
>>> BeanUtils.copyProperties(...) that copy the values back and forth
>>> from the
>>> DTO to the form bean.
>>>
>>> Don't forget to write a reset method to handle those checkboxes.
>>>
>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
>> For additional commands, e-mail: user-help@struts.apache.org
>>
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
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Re: Presetting Form Data
Posted by "Tom Holmes Jr." <to...@tomholmes.net>.
I've done a lot more research on this issue and the I found the
web-site: http://husted.com/struts/catalog.html
which proved to be an invaluable aid in the best practices of how to
create a Struts-based wab-application.
I also found this site which seemed to give me all the answers I needed
or so I thought: http://www.reumann.net/struts/lesson2/step9.do
So, I have a link from a JSP menu that looks like:
http://www.mydomain.net/update_address.do
The struts-config.xml has the following declared:
In the form-bean definitions I have:
<form-bean name="memberAddressForm"
type="com.tjh.csaa.beans.MemberAddressForm"/>
In the Action Mappings I have:
<action path="/address_update"
type="com.tjh.csaa.beans.MemberAddressAction"
name="MemberAddressForm"
scope="request"
validate="false">
<forward name="choice" path="/membership/membership_choice.jsp"/>
<forward name="success" path="/membership/membership_address.jsp" />
</action>
So, the idea is like the example, that is I call the Action
(MemberAddressAction) which is going to get my "member" (MemberDTO) from
the session (because the user has previously logged-in) and the
MemberDTO is now in session. So, MemberAddressAction gets this "member"
and uses the "populate" method I wrote to transfer the data from this
"member" into the Form-Bean (MemberAddressForm).
Here is some of the code from the MemberAddressAction:
HttpSession session = request.getSession();
MemberDTO member = (MemberDTO)session.getAttribute("member");
if( member == null)
{
System.out.println("user has not signed in");
return (mapping.findForward("choice"));
}
else
{
MemberAddressForm memberForm = (MemberAddressForm)form;
copyBeanToForm(member,memberForm);
}
return (mapping.findForward("success"));
I can vouch for sure that the "member" (MemberDTO) does exist in session
correctly ... however, the form does not get created and as a result is
null. So, question is WHY?
Why does this code not work and how can I correct it?
MemberAddressForm memberForm = (MemberAddressForm) form;
Thanks again for any help.
Tom
Tom Holmes Jr. wrote:
> Thanks for the info.
>
> "membership_address.do" is the Action from the JSP page when I do my
> submit. If I call the this Action with validate=true, then it's going
> to call the FormBean Validate method first, and if anything is required,
> then it would get errors and return to the calling page with a bunch of
> error codes even though the user wasn't there the first time. I've seen
> other people ask that question before.
>
> The Action you suggest I call, is this a new Action altogether with no
> validation? This action could either get data from the database, or if
> that is already done, then I could just take the data from the MemberDTO
> and put that into the formbean as you suggest, then I would
> automatically forward to the Membership_Address.jsp page. Is that
> correct, or do you mean go to the same Action as when I do a submit.
>
> So, I won't be a bother to the list, can you re-direct me to the
> struts-example web-app? Can I download that app from the Struts
> web-site directly?
>
> Thanks again for the help.
>
> Tom
>
>
> Wendy Smoak wrote:
>
>> From: "Tom Holmes Jr." <to...@tomholmes.net>
>>
>>> So, the way I started to handle this is call the JSP page directly with
>>> the form. I got the 'member' object from session and I populated the
>>> value field as follows:
>>> <html:text property="address1" value="${member.address1}"/>
>>> Would this be appropriate? It works except for my checkboxes.
>>
>>
>>
>> No. Set those values in the Action code, before forwarding to the JSP.
>>
>> The struts-example webapp shows how to do this-- look for the calls to
>> BeanUtils.copyProperties(...) that copy the values back and forth from
>> the
>> DTO to the form bean.
>>
>> Don't forget to write a reset method to handle those checkboxes.
>>
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
> For additional commands, e-mail: user-help@struts.apache.org
>
>
---------------------------------------------------------------------
To unsubscribe, e-mail: user-unsubscribe@struts.apache.org
For additional commands, e-mail: user-help@struts.apache.org
Re: Presetting Form Data
Posted by "Tom Holmes Jr." <to...@tomholmes.net>.
Thanks for the info.
"membership_address.do" is the Action from the JSP page when I do my
submit. If I call the this Action with validate=true, then it's going
to call the FormBean Validate method first, and if anything is required,
then it would get errors and return to the calling page with a bunch of
error codes even though the user wasn't there the first time. I've seen
other people ask that question before.
The Action you suggest I call, is this a new Action altogether with no
validation? This action could either get data from the database, or if
that is already done, then I could just take the data from the MemberDTO
and put that into the formbean as you suggest, then I would
automatically forward to the Membership_Address.jsp page. Is that
correct, or do you mean go to the same Action as when I do a submit.
So, I won't be a bother to the list, can you re-direct me to the
struts-example web-app? Can I download that app from the Struts
web-site directly?
Thanks again for the help.
Tom
Wendy Smoak wrote:
> From: "Tom Holmes Jr." <to...@tomholmes.net>
>
>>So, the way I started to handle this is call the JSP page directly with
>>the form. I got the 'member' object from session and I populated the
>>value field as follows:
>><html:text property="address1" value="${member.address1}"/>
>>Would this be appropriate? It works except for my checkboxes.
>
>
> No. Set those values in the Action code, before forwarding to the JSP.
>
> The struts-example webapp shows how to do this-- look for the calls to
> BeanUtils.copyProperties(...) that copy the values back and forth from the
> DTO to the form bean.
>
> Don't forget to write a reset method to handle those checkboxes.
>
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