Play framework 2.4 internationalization

Dominik Sienkiewicz

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Jun 15, 2015, 3:17:48 PM6/15/15

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I have problem with internationalization on play.

My code looks like this.

application.conf

# The application languages
# ~~~~~
play.i18n.langs = [ "en", "pl", "fr" ]

Application.scala

import play.api.mvc._

class Application extends Controller {

  def index = Action { request =>
    val s: String = "Languages: " + request.acceptLanguages.map(_.code).mkString(", ")
    val striner: String = play.i18n.Messages.get("title") + ">>>" + s
    Ok(views.html.index("[[" + striner + "]]"))
  }

}

messages.en

test = en
title = title en
page.lang = en

messages.pl

test = "pl"
title = title pl
page.lang = pl

index.scala.html

@(message: String)

@main("Welcome to Play") {

    @play.i18n.Messages.get("test")
    <br />
    @message

}

main.scala.lang

@(title: String)(content: Html)

<!DOCTYPE html>

<html lang="@play.i18n.Messages.get("page.lang")">
    <head>
        <title>@title</title>
        <link rel="stylesheet" media="screen" href="@routes.Assets.versioned("stylesheets/main.css")">
        <link rel="shortcut icon" type="image/png" href="@routes.Assets.versioned("images/favicon.png")">
        <script src="@routes.Assets.versioned("javascripts/hello.js")" type="text/javascript"></script>
    </head>
    <body>
        @content
    </body>
</html>

And every time when i start this app on my laptop (http://localhost:9000) I have this

"pl"
[[title pl>>>Languages: en, pl, en-US]]

He see polish even when I set english in chrome.

What am I doing wrong ?

Thanks for help

Christian Kaps

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Jun 16, 2015, 2:21:07 AM6/16/15

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Hi,

From the documentation: https://www.playframework.com/documentation/2.4.x/ScalaI18N

If you have a RequestHeader in the implicit scope, it will use the preferred language extracted from the Accept-Language header and matching one of theMessagesApi supported languages. You should add a Messages implicit parameter to your template like this: @()(implicit messages: Messages).

Your controller should look like:

class Application @Inject() (val messagesApi: MessagesApi) extends Controller with I18nSupport {

  def index = Action { implicit request =>
    Ok(views.html.index())
  }
}

Then in your template you can write:

@()(implicit messages: Messages)

@Messages("your.key")

Dominik Sienkiewicz

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Jun 16, 2015, 3:06:47 AM6/16/15

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Hi

I do something like this:

Application.scala

package controllers

import com.google.inject.Inject
import play.api.i18n.{MessagesApi, I18nSupport}
import play.api.mvc._



class Application @Inject() (val messagesApi: MessagesApi) extends Controller with I18nSupport {

  def index = Action { request =>
    val s: String = "Languages: " + request.acceptLanguages.map(_.code).mkString(", ")

    val striner: String = messagesApi("title") + ">>>" + s


    Ok(views.html.index("[[" + striner + "]]"))
  }

}

index.scala.html

@(message: String)(implicit messages: Messages)



@main("Welcome to Play") {

    @Messages("test")
    <br />
    @message

}

main.scala.html

@(title: String)(content: Html)(implicit messages: Messages)

<!DOCTYPE html>

<html lang="@Messages("page.lang")">

    <head>
        <title>@title</title>
        <link rel="stylesheet" media="screen" href="@routes.Assets.versioned("stylesheets/main.css")">
        <link rel="shortcut icon" type="image/png" href="@routes.Assets.versioned("images/favicon.png")">
        <script src="@routes.Assets.versioned("javascripts/hello.js")" type="text/javascript"></script>
    </head>
    <body>
        @content
    </body>
</html>

But still I get this:

"pl"
[[title pl>>>Languages: en-US, en]]

--

Best Regards
Dominik Sienkiewicz
e-mail: dominik.s...@gmail.com

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Christian Kaps

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Jun 16, 2015, 3:42:46 AM6/16/15

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Hi,

The I18nSupport trait has an implicit `request2Messages` method, which gives you the `Messages` (containing the `MessagesApi` and the `Lang`) based on your preferred lang. The `MessagesApi` you inject cannot have the preferred language from your browser because this is contained in the request.

https://github.com/playframework/playframework/blob/5d7adcbc246323310f6c9a9ef26555902e0ba3dc/framework/src/play/src/main/scala/play/api/i18n/I18nSupport.scala#L26

There is also an example in the linked source.

Best regards,

Christian

Dominik Sienkiewicz

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Jun 16, 2015, 6:41:39 AM6/16/15

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Do you have any example project for play 2.4 with internationalization based on browser (request) language?

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Pozdrawiam

Dominik Sienkiewicz

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Christian Kaps

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Jun 16, 2015, 6:50:42 AM6/16/15

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Does it not work with my suggested changes?

https://github.com/mohiva/play-silhouette-seed

Dominik Sienkiewicz

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Jun 16, 2015, 7:04:28 AM6/16/15

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Could You show my how my controller and view should looks like?

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Dominik Sienkiewicz

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Christian Kaps

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Jun 16, 2015, 7:15:24 AM6/16/15

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Please could you post the output from the println() statement.

class Application @Inject() (val messagesApi: MessagesApi) extends Controller with I18nSupport {

  def index = Action { implicit request =>


    println(request2Messages.lang)
    Ok
  }
}

Dominik Sienkiewicz

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Jun 16, 2015, 7:37:44 AM6/16/15

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Lang(en,)

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Best Regards
Dominik Sienkiewicz
e-mail: dominik.s...@gmail.com

To view this discussion on the web visit https://groups.google.com/d/msgid/play-framework/8bb011c5-53fc-4b24-a98d-5a7b2fd7485f%40googlegroups.com.

Christian Kaps

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Jun 16, 2015, 7:50:21 AM6/16/15

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This was your expected lang, wasn't it? Then your controller and your templates must look like as suggested in: https://groups.google.com/d/msg/play-framework/tjNZehtyofI/tOkL76oujZoJ

Dominik Sienkiewicz

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Jun 16, 2015, 8:05:47 AM6/16/15

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Great

Now it works.

Many thanks Christian

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Pozdrawiam

Dominik Sienkiewicz

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