Ok I am getting somewhere now, thanks!
The address goes into the database fine when I get a reference to it
like this:
def getAddress : Address =
address.obj match {
case Full(a) => a
case _ =>
val a = new Address
address(a)
a
}
But the problem now is that the corresponding foreign key on the users
table is not set...
On Aug 11, 11:13 pm, Naftoli Gugenheim <naftoli...@gmail.com> wrote:
> Just on the field, like you have it; not on the mapper.
>
> -------------------------------------
>
> george<geo...@mattandgeorge.com> wrote:
>
> I'm not sure exactly how to implement that.
>
> Like this?
>
> Address.scala
> class Address extends LongKeyedMapper[Address] with IdPK with
> LongMappedForeignMapper[T,Address]
>
> User.scala
> class User extends MegaProtoUser[User] {
> object address extends MappedLongForeignKey(this, Address) with
> LongMappedForeignMapper[User, Address]
>
> }
>
> This was the only docs I could find on the LongMappedForeignMapper:
>
> http://wiki.github.com/dpp/liftweb/how-to-work-with-one-to-many-relat...
>
> How does it work for a 1 - 1 relationship?
>
> On Aug 11, 10:36 pm, Naftoli Gugenheim <naftoli...@gmail.com> wrote:
>
>
>
> > Did you try LongMappedForeignMapper? I created it for this exact purpose,
> > so if it's not working I want to know.
> > Thanks.
>
> > -------------------------------------
>
> > george<geo...@mattandgeorge.com> wrote:
>
> > Hi Steffen, thanks for the thought.
>
> > In your case I think the User object will already be saved in the
> > database when you add an address to it.
>
> > I'm trying to make it so that when a new User signs up, they fill in
> > their address at the same time as the other fields. So there is no
> > User object in the database to add an address to yet.
>
> > On Aug 11, 9:57 pm, Steffen Weißmann
>
> > <steffen.weissm...@googlemail.com> wrote:
> > > I think the problem is the "new Address". You need
> > > Address.create.save. My code is:
>
> > > def addAddress(form: NodeSeq) = {
> > > val user = User.currentUser.open_!
> > > val addr = user.address.obj.openOr {
> > > val newAdr = Address.create
> > > newAdr.save
> > > user.address(newAdr).save
> > > println("Creating new Address for user
> > > "+user.firstName+" "+user.lastName)
> > > newAdr
> > > }
> > > def doBind(form: NodeSeq): NodeSeq =
> > > <table>{bind("form", form,
> > > "table" ->
> > > addr.toForm(Full(S.?("address.submit")), doBind, addr
> > > => addr.save)
> > > )}</table>
> > > doBind(form)
> > > }
>
> > > Steffen.
>
> > > On Tue, Aug 11, 2009 at 10:48 PM, Naftoli Gugenheim<naftoli...@gmail.com>
> > > wrote:
>
> > > > Try mixing in LongMappedForeignMapper to address, or calling
> > > > address.primeObj(addressObj).
> > > > What doesn't work the way you tried?
>
> > > > -------------------------------------
> > > > george<geo...@mattandgeorge.com> wrote:
>
> > > > I have extended MegaProtoUser in order to add a related Address object
> > > > which is a MappedLongForeignKey.
>
> > > > The idea being simply that there is a 1 to 1 relationship between a
> > > > User and their Address.
>
> > > > When a new User object is instantiated (but not yet persisted), I want
> > > > to be able to get the related address object like this:
>
> > > > user.address.obj
>
> > > > But the returned Box is always empty, I guess because nothing has been
> > > > saved yet.
>
> > > > I need to somehow initialise the address if it is Empty otherwise
> > > > return the current Address.
>
> > > > I thought something like this would work, but it doesn't:
>
> > > > user.address.obj.openOr(user.address(new Address).address.obj.open_!)
>
> > > > Anyone know how to do this properly?
>
> > > --
> > > Steffen Weissmann
>
> > > Technische Universitaet Berlin - Math. Department - MA 3-2
>
> > > Str. des 17. Juni 136
> > > 10623 Berlin - Germany
>
> > > Phone: +49 30 314-29278
> > > Mail: weissm...@math.tu-berlin.de
> > > Web:www.math.tu-berlin.de/~weissman
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