How to get a value as number from Mongodb, casbah - mongodb

Question

I have a simple code for getting the port number from MongoDB. I use scala and the driver is of course casbah.
def getPortNo : Int {
val query = MongoDBObject("_id" -> "Store")
val data = coll.findOne(query)
return data.get("port")
}
Here my application only has one document that id is equal to "store".
but this is not resolved in IDE.
I have the same code for getting the version.
def getVersion : String = {
val query = MongoDBObject("_id" -> "Store")
val data = coll.findOne(query)
return data.get("version").toString
}
this works well.
I tried data.get("port").toString.toInt and It also does not work.
Can someone tell me how to do this. I think the problem here is the returning value in not either number or a string. what is the return type and how can I cast it into a number.

Answer 1

It depends on how you store "port" field. Try data.as[Number]("value").intValue(). It must work any number format.
And you should consider that findOne returns Option, so you can return Option too:
def getPortNo : Option[Int] = {
val query = MongoDBObject("_id" -> "Store")
val data = coll.findOne(query)
data.map(_.as[Number]("port").intValue)
}
Or use some default value:
def getPortNo : Int = {
val query = MongoDBObject("_id" -> "Store")
val data = coll.findOne(query)
data.map(_.as[Number]("port").intValue).getOrElse(80)
}