I think there is support somewhere in the MappedField hierarchy for a
MappedField that represents to database columns. Take a look at MappedPassword.
-------------------------------------
harryh<har...@gmail.com> wrote:
Make MyMappedTimeSpan a trait:
trait MyMappedTimeSpan[T <:Mapper[T]](val owner: T) {
object from extends MappedTime[MapperType](this.asIntanceOf
[MatterType])
object to extends MappedTime[MapperType](this.asIntanceOf
[MatterType])
}
And then use it like so:
class DBObject extends LongKeyedMapper[Bericht] with IdPK with
MyMappedTimeSpan[DBObject] {
}
-harryh
On Oct 16, 8:08 am, hyperion <hyperion1...@googlemail.com> wrote:
> Hello,
>
> I tried this:
>
> class MyMappedTimeSpan[T <:Mapper[T]](val owner: T){
> import net.liftweb.util._
> import net.liftweb.http.S
> import xml.NodeSeq
>
> val from = new MappedTime(owner)
> val to = new MappedTime(owner)
> }
>
> class DBObject extends LongKeyedMapper[Bericht] with IdPK {
>
> def getSingleton = Bericht
> ...
> object test extends MyMappedTimeSpan(this)
>
> }
>
> and bound this class with:
> "from" -> bt.test.from.toForm,
> "to" -> bt.test.to.toForm,
>
> In html:
> <tr>
> <td><bt:von/></td>
> <td><bt:nach/></td>
> </tr>
>
> Everything worked fine... except that my timespan is completely
> ignored in the database ;). I think the reason is you use reflection
> on class DBObject to find all values that should be stored in the
> dabase?... but I have not inspected the source code jet... I am new to
> lift and also to scala....
>
> My Question: Is it possible to build such Datatypes based on two or
> more DB-Fields of the single table...?... I think even they are
> mapped to the "master"-DB-table, such types could be helpful...
>
> Greetz
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