Play 2.6 I18N API Migration not working

[Emmanuel]

Hello,

I am trying to migrate an existing application to Play 2.6, but fails to do so. If I try to start from scratch from the documentation and use this piece of code:

import javax.inject.Inject
import play.api.i18n._

class MySupportController @Inject()(val controllerComponents: ControllerComponents)
  extends BaseController
    with I18nSupport {

def messages2 = Action { implicit request =>
    // type enrichment through I18nSupport
    val lang: Lang = request.lang
    val message: String = messagesApi("info.error")(lang)
    Ok(message)
  }

}




I get a: value lang is not a member of type parameter R[B]




Any idea ?

[Will Sargent]

I haven't had coffee yet, but I think this might be one of the deprecated implicits:

https://www.playframework.com/documentation/2.6.x/MessagesMigration26#Deprecated-Methods

request.lang should be defined as an implicit conversion from the low priority trait here:

https://github.com/playframework/playframework/blob/2.6.0/framework/src/play/src/main/scala/play/api/i18n/I18nSupport.scala#L79

You can always say request.messages.lang in a pinch.

--

Will Sargent

Engineer, Lightbend, Inc.

will.s...@lightbend.com

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[Emmanuel]

You are right, it works fine with request.messages.lang. Does that mean the doc (https://playframework.com/documentation/2.6.x/ScalaI18N) is not up to date?

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