Scala Play Framework Json Serializer error - scala

Question

Trying to convert class to Json.
Here is my class, it includes other two classes:
case class GoodEdit(good: Good, data: List[(String, Option[GoodText])])
case class Good(
id: Long,
partnumber: Option[String] = None
)
case class GoodText(
goodid: Long,
languageid: Long,
title: String,
description: Option[String] = None)
And here are my writers:
object GoodWriters {
implicit val goodWrites = new Writes[Good] {
def writes(good: Good) = Json.obj(
"id" -> good.id,
"partnumber" -> good.partnumber
)
}
implicit val goodTextWrites = new Writes[GoodText] {
def writes(goodText: GoodText) = Json.obj(
"goodid" -> goodText.goodid,
"languageid" -> goodText.languageid,
"title" -> goodText.title,
"description" -> goodText.description
)
}
implicit val GoodEditWrites = new Writes[GoodEdit] {
def writes(goodEdit: GoodEdit) = Json.obj(
"good" -> Json.toJson(goodEdit.good),
"data" -> Json.toJson(
for ((lang, goodTextOpt) <- goodEdit.data ) yield Json.obj(lang -> goodTextOpt)
)
)
}
Then, in controller I try it to use like this:
Action {
import jwriters.GoodWriters._
GoodEditAggregate.get(id).map{
a => Ok(Json.toJson(a))
}.getOrElse(Ok(Json.toJson(Json.obj("status" -> "error","message" -> "Can't find good with this id"))))
}
And compilator complaining on this part: Ok(Json.toJson(a))
No Json serializer found for type GoodEdit. Try to implement an
implicit Writes or Format for this type
Can't understand what is wrong. I've imported writers for objects already

Answer 1

Try to Import Goodwrites globally