o

net.liftweb.sitemap.Loc

MatchWithoutCurrentValue

object MatchWithoutCurrentValue extends AnyLocParam with Product with Serializable

If this parameter is included, the Loc will continue to execute even if currentValue is not defined.

By default, Lift will determine that a Loc does not match a given request if its currentValue comes up Empty, and as a result will return an HTTP 404. For situations where this is not the desired, "Not Found" behavior, you can add the MatchWithoutCurrentValue LocParam to a Loc, then use the IfValue LocParam to define what should happen when the currentValue is Empty.

For example, given some class Thing, you could do the following to trigger a redirect when a Thing with a particular ID isn't found.

Menu.param[Thing]("Thing", "Thing", Thing.find(_), _.id) >>
  MatchWithoutCurrentValue >>
  IfValue(_.isDefined, () => RedirectResponse("/page/to/redirect/to"))
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Serializable, Serializable, Product, Equals, LocParam[Any], AnyRef, Any
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  1. final def !=(arg0: Any): Boolean
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  2. final def ##(): Int
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  9. final def getClass(): Class[_]
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  10. final def isInstanceOf[T0]: Boolean
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  11. final def ne(arg0: AnyRef): Boolean
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  12. final def notify(): Unit
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  13. final def notifyAll(): Unit
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  14. def onCreate(loc: Loc[_]): Unit
    Definition Classes
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  15. final def synchronized[T0](arg0: ⇒ T0): T0
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  16. final def wait(): Unit
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  17. final def wait(arg0: Long, arg1: Int): Unit
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  18. final def wait(arg0: Long): Unit
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