Ah, that's clever. I'll switch to that. I forget that if map works at all, the Can is full.
I'm not sure what the problem was. I wrote some more code to fill things in while waiting for a response, and now it's running beautifully. I'm really liking JPA. It's rocking fast and very powerful. Chas. Derek Chen-Becker wrote: > Everything there looks kosher at first glance to me. SessionVars should > stay in the session no matter what. One thing I can think of is if > somehow you're losing the session. Is the session ID being stored in a > cookie, or as part of the URI? If it's part of the URI you may be > dropping it somewhere else in your code if you process the URI at all. > That's just a guess. Also, I would probably write the isAuthenticated > method as: > > def isAuthenticated_? : CurrentUserId.map(true) openOr false > > Derek > > On Thu, Oct 16, 2008 at 5:15 PM, Charles F. Munat <[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]>> wrote: > > > I've got a JPA Lift site and have set up a login in which the User's id > is stored in a session variable thus, as shown below. > > This works just fine. The user can log in and go from page to page. But > after some random number of clicks, whoops! I'm suddenly no longer > logged in. > > Hmmm. I must be doing something wrong. I just love intermittent > failures. > > (My user object is a Member.) > > object CurrentUserId extends SessionVar[Can[Long]](Empty) > object RequestedURL extends SessionVar[Can[String]](Empty) > object CurrentUser extends RequestVar[Can[Member]](Empty) > > object AccessControl { > > def login(): Can[LiftResponse] = { > if (S.post_?) { > try { > val member: Member = Model.createNamedQuery[Member]( > "findMemberByEmailAddress", > "emailAddress" -> > S.param("emailAddress").openOr("")).getSingleResult() > > if (member.authenticate(S.param("password").openOr(""))) { > CurrentUser(Full(member)) > CurrentUserId(Full(member.id <http://member.id>)) > } > else > S.error("Go away!") > > } catch { > case x: NoResultException => > S.error("This thing don't work.") > case _ => S.error("Done broke. Ouch.") > } > } > > val uri = RequestedURL.openOr("/") > RequestedURL(Empty) > Full(RedirectResponse(uri)) > } > > def logout(): Can[LiftResponse] = { > CurrentUser(Empty) > CurrentUserId(Empty) > Full(RedirectResponse(S.param("path").openOr("/"))) > } > > def isAuthenticated_?() : Boolean = CurrentUserId.is match { > case Empty => false > case Full(_) => true > case _ => false > } > > Then: > > Menu(Loc("forum", List("forum", "index"), "Forum", LocGroup("global"), > If(isAuthenticated_?, "Please log in to see this page."))) > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Lift" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/liftweb?hl=en -~----------~----~----~----~------~----~------~--~---
