scala-news-reader

BlogWriterVideoSnip.scala

(1428B)

 package com.joereader
 package snippet
 
 import lib._
 import config._
 import model._
 
 import net.liftweb._
 import common._
 import http._
 import SHtml._
 import util.Helpers._
 import js._
 import JsCmds._
 import scala.xml._
 
 /**
  * Snippet to change blog writer's youtube video.
  */
 object BlogWriterVideoSnip extends BlogWriterSnip {
 
   // video snippet is located beside categories snippet.
   override def blog = Site.categoriesLoc.currentValue
   
   override def blogWriter: Box[BlogWriter] =
     for {
       blog <- blog
       user <- User.currentUser
       blogWriter <- blog.writers.find(user)
     } yield blogWriter
     
   private def test: Boolean = blogWriter.exists(
     bw => User.currentUser.exists(_.id.get == bw.user.get))
     
   def render(html: NodeSeq) = serve(html) {
     (blog, blogWriter) =>
 
       def check(id: String): JsCmd = {
         import VideoService._, dispatch._
         if (id.isEmpty) Noop
         else {
           Youtube.video.duration(id)() match {
             case Left(msg) => S.error(msg)
             case Right(time) =>
               if (time <= 30) {
                 blogWriter.introVid(id)
                 blog.save
                 Noop
               } else
                 S.error("Video duration must be " +
                 		"30 seconds or less")
           }
         }
       }
       "*" #> ajaxText(blogWriter.introVid.get, {
         s => check(s); Noop
       })
   }(test, NodeSeq.Empty)
 }