Ah, the compiler error made me actually look at my code (doh), and here's
what I really use:
def isLoggedIn_? = currentUserIdVar.is.isDefined
I actually have a few things defined around this:
object currentUserIdVar extends SessionVar[Can[Long]](Empty)
def currentUserId = currentUserIdVar.is openOr -1
object currentUserObjVar extends
RequestVar[Can[Member]](currentUserIdVar.map(Model.getReference(classOf[Member],
_)))
def currentUserObj = currentUserObjVar.is
def currentUsername = currentUserObj map {_.userId} openOr "Not logged in"
def login (member : Member) = currentUserIdVar(Full(member.id))
def logout = currentUserIdVar.remove
def isLoggedIn_? = currentUserIdVar.is.isDefined
def isSuperuser_? = currentUserObj map {_.superuser} openOr false
I was thinking of my isSuperuser_? method. Hope this helps!
Derek
On Thu, Oct 16, 2008 at 8:33 PM, Charles F. Munat <[EMAIL PROTECTED]> wrote:
>
> The compiler doesn't like that at all (even after replacing : with =)
>
> error: type mismatch;
> [WARNING] found : Boolean(true)
> [WARNING] required: (Long) => ?
> [WARNING] def isAuthenticated_? = CurrentUserId.map(true) openOr false
> [WARNING] ^
>
> Also, it needs the () after the ?. This works:
>
> def isAuthenticated_?() = CurrentUserId.is.map((Long) => true) openOr false
>
> Thanks!
>
> 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.")))
> >
> >
> >
> >
> > >
>
> >
>
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