scala-news-reader

rss/atom news reader in scala

git clone https://9o.is/git/scala-news-reader.git

ObjectIdRefListFieldExtra.scala

(505B)

      1 package com.joereader.model.field
      2 
      3 import com.mongodb._
      4 import net.liftweb._
      5 import common._
      6 import mongodb.record._
      7 import field._
      8 
      9 
     10 trait ObjectIdRefListFieldExtra[
     11   OwnerType <: BsonRecord[OwnerType], 
     12   RefType <: MongoRecord[RefType] with ObjectIdPk[RefType]]
     13   extends ObjectIdRefListField[OwnerType, RefType] {
     14 
     15   def add(a: RefType): OwnerType =
     16     if (get.exists(_ == a.id.get)) owner
     17     else this(a.id.get :: get)
     18     
     19   def remove(blog: RefType) =
     20     this(get.filterNot(_ == blog.id.get))
     21 }