Created
February 20, 2012 07:42
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Session composition for action composition
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| val newSession = additionalSessionParams.foldLeft[Session](request.session) { _ + _ } | |
| val r: PlainResult = action(request).asInstanceOf[PlainResult] | |
| // workaround since withSession calls aren't composable it seems | |
| val innerSession = r.header.headers.get(SET_COOKIE).map(cookies => Session.decodeFromCookie(Cookies.decode(cookies).find(_.name == Session.COOKIE_NAME))) | |
| if(innerSession.isDefined) { | |
| // there really should be an API method for adding sessions | |
| val combined = innerSession.get.data.foldLeft(newSession) { _ + _ } | |
| r.withSession(combined) | |
| } else { | |
| r.withSession(newSession) | |
| } |
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Wow, this is awesome. I was just trying to figure out how to do this. If Play! is pushing Action composition they should include this kind of functionality so we can use composition for the way out, not just for the way in.