Loosing the URL parameters between requests

[vralev]

I am looking for a way to keep the GET params between requests (leading to the same page).

The blog sample app for instance has nice bookmarkable URLs for the posts:
http://localhost:8080/seam-blog/seam/entry.xhtml;jsessionid=81D2CDB39A995308A2E407B5BB2007A3?blogEntryId=book

however, when you change the theme it performs another request the url ends up like this:
http://localhost:8080/seam-blog/seam/entry.xhtml

Any easy fixes?

[pmuir]

I think page parameters should do what you are after?

[robjellinghaus]

The "blogEntryId" *is* a page parameter in the blog example.

I don't understand the theme stuff well enough to know of any easy way to pass the page parameters along with the theme re-request.

[pmuir]

It looks like page parameters don't get added if the page is redisplayed (rather than a navigation performed). Gavin really need to look at this.

[vralev]

Yes, page parameters don't seem to keep it.

My use case is more common than a theme change. The user is browsing some bookmarkable articles, and if he wants to add a comment he has to log in and stay on the same page. After the log-in the GET params disappear.

One workaround is to use a4j login action and rerender the the needed parts, which is a bit more complicated (and bugged with richfaces right now).

[sammy8306]

My approach is to cache the parameters in a page scoped component.

[vralev]

After taking a deeper look I figured it out. It needs some navigation defined in pages.xml. For example in the blog demo entry.xhtml page definition should be:

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

 <param name="blogEntryId"
 value="#{blogEntry.id}"/>

 <action execute="#{entryAction.loadBlogEntry(blogEntry.id)}"/>

 <navigation from-action="#{themeSelector.select}">
 <redirect view-id="/entry.xhtml"/>
 </navigation>

 </page>

It would be possible to automate this in Seam. It needs:

entry.setDefaultNavigation(..);

in Pages.parseActionNavigation for every page, but I see it's specifically coded to avoid creating this default navigation and may be it's better to leave it that way.