Conditional navigation in pages.xml

[gmarcus]

I am trying to use navigation in pages.xml.

 <page view-id="/emailvalidate.xhtml" action="#{account.validateEmail}">
 <param name="tk" value="#{token.hash}"/>
 <navigation from-action="#{account.validateEmail}">
 <rule if-outcome="success">
 <render view-id="/login.xhtml"/>
 </rule>
 </navigation>
 </page>

if the action returns "success", seam renders /login.xhtml

This is what I expected.

What I would like to do, is if the outcome is null, render /validate.xhtml

I tried this:

 <page view-id="/emailvalidate.xhtml" action="#{account.validateEmail}">
 <param name="tk" value="#{token.hash}"/>
 <param name="src" value="email"/>
 <navigation from-action="#{account.validateEmail}">
 <rule if-outcome="success">
 <render view-id="/login.xhtml"/>
 </rule>
 <rule>
 <render view-id="/validate.xhtml"/>
 </rule>
 </navigation>
 </page>

For any outcome other than "success", I expected /validate.xhtml to be rendered, but instead, seam renders the original view-id which is /emailvalidate.xhtml

How can I render one page for a specific outcome from an action, and a different page for any other outcome including null?

Glenn

[christian.bauer]

You can't, "null" outcome means re-render.

[gmarcus]

You can't, "null" outcome means re-render.

I was hoping that I could avoid having to put additional outcomes or view logic inside my business layer call to account.validateEmail() (which is a SFSB)

It made sense to me that I should be able to redirect to a view in case of null. Even the Seam Reference Documentation shows an example of this in Section 5.1.1.2:

If you want to perform navigation when a null outcome occurs, use the following form instead:

<page view-id="/editDocument.xhtml">

 <navigation from-action="#{documentEditor.update}">
 <render view-id="/viewDocument.xhtml"/>
 </navigation>

</page>

I thought you can define multiple rules with a naviagation element. How do I specify multiple rules in this case to go to one view on outcome of "success" and another view for anything else?


Glenn