Migration from 0.10.5.0.akka23 to 0.11.7.play23

[David Sanchez]

Hi,

In my 2.3.10 scala-based play application, i'm using "play2-reactivemongo" 0.10.5.0.akka23 and "reactivemongo-extensions-json" 0.10.5.0.0.akka23.

Now, I want to use 0.11.7.play23 stable version.

Is there a migration doc somewhere ?

Because I have now a lot of compilation error...

One of my lot of errors :

case class MyTest(_id: BSONObjectID = BSONObjectID.generate, someField: string)


object MyTest {


 import play.api.libs.json.Json
 import play.modules.reactivemongo.json.BSONFormats._


 implicit val format = Json.format[MyTest]


 def anthoreFormat = new Writes[MyTest] {
 
 implict val overrideBSONObjectIDFormat = MyBSONObjectID.defaultWrite


 def writes(obj: MyTest) = format.writes(obj) ++ Json.obj(
  // Override to just return "_id" -> "stringify"
  "_id" -> obj._id
 )
 }


}


object MyBSONObjectID {


  def defaultWrite = new Writes[BSONObjectID] {


    def writes(obj: BSONObjectID) = JsString(obj.stringify)


  }


}

I have the following error

found   : reactivemongo.bson.BSONObjectID
required: play.api.libs.json.Json.JsValueWrapper
    "_id" -> obj._id

The implicit does not work anymore...

Any idea ?

Thanks !

[David Sanchez]

Ok for this error, I just forgot to specify the return type 

def writes(obj: BSONObjectID):JsValue = JsString(obj.stringify)

...

[David Sanchez]

Now compilation is ok. But not execution.

The BSONObjectID implicit writes is not applied. Any idea on why it is not applied since I use the new module version ?

Thanks

[Cédric Chantepie]

Either the implicit is found at compile time, or you get a compilation error. If runtime exception, I doubt that's related to an implicit.

[David Sanchez]

There is NO runtime exception.

I just notice that my custom implicit write is no more applied (the default one is used ie. the one containing the $oid sub object}...

As if my implicit write is ignored...

[Cédric Chantepie]

Hi, what's the code where the implicit should be used, and what's the implicit code?

[David Sanchez]

With the old version, when I define the given implicit val format 

implicit val overrideBSONObjectIDFormat

the output string

Json.toJson(myTestVal)

was

  {
    "_id": "560b987f81501835022f8162",
"someField": "something"
}

And now, with the same code but new version the output string is

 

 {
    "_id": {
 $oid: "560b987f81501835022f8162"
 },
 "someField": "something"
 }

What am I misunderstanding ?

[Cédric Chantepie]

Please add the type of your implicit val.

[David Sanchez]

You mean 

implicit val overrideBSONObjectIDFormat:Writes[BSONObjectID] = MyBSONObjectID.defaultWrite

?