RE: Lost form data after form.validate() and issuing error messages

[Pankaj Borgaonkar]

In the input of second mapping try this /showy.do. Because after
validate, you have to populate the form values again ....

Let me know this works 
 
-----Original Message-----
From: Tuna Vardar [mailto:[EMAIL PROTECTED] 
Sent: Wednesday, July 30, 2003 6:58 PM
To: [EMAIL PROTECTED]
Subject: Lost form data after form.validate() and issuing error messages


Hello,

I lose all form data  if validate returns error for the form input. If
action goes through validation without creating of any errors, 
XAction works fine.
ShowXAction is used to display jsp and jsp posts to XAction. Any
comments? You can see the code below.

cheers,
tuna

*************************

ShowXAction.java looks like follows:

public final class ShowXAction extends Action {

    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception{

        // Update form data
        if (form == null) {
            form = new XForm();
            if ("request".equals(mapping.getScope()))
                request.setAttribute(mapping.getAttribute(), form);
            else
                session.setAttribute(mapping.getAttribute(), form);
        }
       
        XForm f = (XForm)form;
       
        f.setA("...");
        f.setB("...");
     
        //ensure, that form is submited only once
        saveToken(request);       
               
        return mapping.findForward("success");

    }

XAction.java looks like:

public final class XAction extends Action {

    public ActionForward execute(ActionMapping mapping, ActionForm form,
            HttpServletRequest request, HttpServletResponse response)
            throws Exception {
               
       XForm f = (XForm)form;

        XBean b = new XBean(f.getA(), f.getB());
        b.store();
   
        //ensure, that form is submited only once
        saveToken(request);       
               
        return mapping.findForward("success");
}


and struts-config.xml is like follows:

    <!-- -->
    <action path="/showx"
        attribute="XForm"
        scope="request"
        validate="false"
        type="com.xxx.yyy.ShowXAction">
      <forward name="success" path="/x.jsp"/>
    </action>

    <!-- -->
    <action path="/x"
        name="XForm"
        scope="request"
        input="/x.do"
        validate="true"
        type="com.xxx.yyy.XAction">
      <forward name="success" path="/showy.do"/>
    </action>


and finally XForm is like follows:

public final class XForm extends ActionForm {

    private String a = null;
   
    private String b = null;
   
    public String getA() {
        return this.a;
    }

    public void setA(String a) {
        this.a = a;
    }
   
    public String getB() {
        return this.b;
    }
   
    public void setB(String b) {
        this.b = b;
    }
   
    public void reset(ActionMapping mapping, HttpServletRequest request)
{
       
        this.a = null;
        this.b = null;

    }

    public ActionErrors validate(ActionMapping mapping,
                                 HttpServletRequest request) {

        ActionErrors errors = new ActionErrors();
       
        if ((this.a == null) || (this.a.trim().length() == 0)) {
            errors.add(ActionErrors.GLOBAL_ERROR, new 
ActionError("form.a.missing"));
        }
       
        if ((this.b == null) || (this.b.trim().length() == 0)) {
            errors.add(ActionErrors.GLOBAL_ERROR, new 
ActionError("form.b.missing"));
        }
        return errors;
       
    }

    public String toString() {
        StringBuffer sb = new StringBuffer("XForm[");
        sb.append("a=").append(this.a);
        sb.append(",b=").append(this.b);
        return sb.toString();
    }
  
}


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