RE: Form bean is null in pagecontext? - OK let's try this again...

[Kevin Roast]

Title: Message

OK, ignore my witterings :-) Since the object is in request scope it must be accessed thus:

 

BaseForm form = (BaseForm)pageContext.getAttribute(Constants.BEAN_KEY, pageContext.REQUEST_SCOPE);

 

This works fine.

 

My confusion stemmed from the fact that getAttribute() returns null when an item doesn't exist as opposed to throwing an error.

 

Kev

-----Original Message-----
From: Kevin Roast
Sent: 07 October 2002 12:16
To: Struts Users Mailing List
Subject: RE: Form bean is null in pagecontext? - OK let's try this again...

Hi,

 

OK, it appears that I'm using the wrong key here - i.e. I should be using BEAN_KEY to get the Form bean not the form tag (doh).

 

HOWEVER - this doesn't explain why the ALL of the attributes on the request scope are "null" e.g. I've printed them out to the console:

 

org.apache.struts.taglib.html.FORM=null
dataForm=null
org.apache.struts.taglib.html.BEAN=null

 

I've looked at the Struts code that sets the attributes in FormTag.doStartTag() and it looks ok:

 

        // Store this tag itself as a page attribute
        pageContext.setAttribute(Constants.FORM_KEY, this, PageContext.REQUEST_SCOPE);

 

Any ideas what's going on here?

 

Cheers,

 

Kev

-----Original Message-----
From: Kevin Roast
Sent: 07 October 2002 10:28
To: [EMAIL PROTECTED]
Subject: Form bean is null in pagecontext?

Hi,

Does anyone know, at what point does the form bean get added to the pageContext as an attribute? (with the key
org.apache.struts.taglib.html.Constants.FORM_KEY)

The reason I ask, is that I have a custom tag that needs to access the form bean class directly (I have created a base form bean class with methods I require), and I'm trying to do something like this in the tag code:

BaseForm form = (BaseForm)pageContext.getAttribute(Constants.FORM_KEY);

Where "BaseForm" is my form bean base class type.

However this returns null. Any ideas? The form is specified as "request" scope in the config file.

Thanks,

Kev

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