mongodb - efficient way to transform a playframework JsValue to a MongoDBObject -

i'm receiving json graph (payload) client, @ web api jsvalue. want take that, decorate couple of fields , store in mongo. this:

case class plan(_id: objectid, name: string, payload: jsvalue)  {   "_id" = 12345,   "name" : "test model",   "payload" : {a json graph} } 

from jsvalue database...

builder += "payload" -> json.parse(json.stringify(model.payload)) 

from database jsvalue...

payload = json.parse(dbo.as[mongodblist]("payload").tostring)) 

while works go jsvalue -> string -> mongodbobject, have 2 valid typed objects , have use untyped intermediate format go 1 another.

if want store graph string "payload", can of course that.

you may want consider using reactivemongo instead of casbah, along play-reactivemongo, provides direct-to-json capability. have not used play-reactivemongo.