Alexander Azarov alaz
alaz
/ gist:141463
Created
July 6, 2009 14:41
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| /** | |
| * In reply to http://blog.xebia.com/2009/07/04/real-world-functional-programming-in-scala-comparing-java-clojure-and-scala/ | |
| */ | |
| def opt[T](x: Seq[T]): Seq[T] = if (x == null) Nil else x | |
| def indexed[T](coll: Seq[T]): Seq[(Int, T)] = { | |
| val c = opt(coll) | |
| List.range(0,c.length).zip(c.toList) | |
| } |
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| /* | |
| * IfLoggedIn implementation which redirects to the page a user was going to, | |
| * after his/her successful login | |
| * | |
| * based on http://groups.google.com/group/liftweb/browse_thread/thread/bdd5accd4bb623c9/d56e054c4037470f , | |
| * works with ProtoUser out of the box | |
| */ | |
| // In SiteMap: | |
| lazy val IfLoggedIn = If(User.loggedIn_? _, loginAndComeBack _) |
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