RE: Missing Struts Form attributes in Action class

[Sri Sankaran]

To retain a form bean across requests, change your action mapping by setting the scope 
to 'session'.

Sri

-----Original Message-----
From: Tuan H. Le [mailto:tuan.le@;phsadc.com] 
Sent: Tuesday, November 05, 2002 4:30 PM
To: Struts Users Mailing List (E-mail)
Subject: Missing Struts Form attributes in Action class


Hi, 

Do you know of the reason why in my case the form data in Struts Form class does not 
get passed to the Action class? When the user clicks on a Submit button, I need to set 
the value in the action and view hidden fields, and submit that HTML form to a Struts 
Action class. But for some reasons, when I retrieve the data from the Struts Form, it 
returned null. 

Below is my code and Struts config file for that form. 

Thanks!
Tuan

---- struts-config.xml ---------

    <!-- Process workflow status tab -->
    <action path="/approveSubmit"
            type="com.phs.ezhr.presentation.action.ApproveSubmitAction"
            validate="false"
            input="/MainMenu.jsp"
            name="approveSubmitForm"
            scope="request" >
            <set-property property="loginRequired" value="true" />
            <forward name="success" path="/MainMenu.jsp" />
            <forward name="failure" path="/login.do" />
    </action>

---- Form class -----

public final class ApproveSubmitForm extends ActionForm
                                     implements IConstants {
  /**
   * User's selected view
   */
  private String view;
  /**
   * submit action
   */
  private String action;

  public void setView( String aView ) {
    this.view = aView;
  }

  public String getView() {
    return this.view;
  }

  public void setAction( String anAction ) {
    this.action = anAction;
  }

  public String getAction() {
    return this.action;
  }

  public void reset( ActionMapping mapping,
                     HttpServletRequest request ) {
    action = null;
    view = null;
  }

  public ActionErrors validate( ActionMapping mapping,
                                HttpServletRequest request ) {
    ActionErrors errors = new ActionErrors();

    return errors;
  }
}

----- Action class  -----------

public final class ApproveSubmitAction extends Action
                                       implements IConstants {
  public ActionForward perform( ActionMapping mapping,
                                ActionForm form,
                                    HttpServletRequest request,
                                HttpServletResponse response )
    throws IOException, ServletException {

    ///
    // ... other code logic
    //

    // get the form handler
    ApproveSubmitForm approveSubmitForm = (ApproveSubmitForm)form;

    // PROBLEM: both of these variables returned null
    String selectedView = approveSubmitForm.getView();
    String selectedAction = approveSubmitForm.getAction();

    // Forward to the appropriate View
    return ( mapping.findForward( target ) );
  }
}



----- JSP (View) ------


<SCRIPT LANGUAGE="JavaScript">
  function saveApproveReject( theForm ) {
     theForm.view.value = theForm.view.options[theForm.view.selectedIndex].value;
     theForm.action.value = 'submit';
     theForm.submit();
  }
</SCRIPT>

<html:form action="/approveSubmit"
           name="approveSubmitForm"
           type="com.phs.ezhr.presentation.form.ApproveSubmitForm"
           method="POST"
           target="_parent">
<input type="hidden" name="action" value="">
<input type="hidden" name="view" value="">

</html:form>

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