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我有一個庫,允許用戶在與Play 2.3一起使用的瀏覽器會話期間在英語和威爾士語之間切換。播放2.5 I18n - 切換語言
切換到Play 2.5後,此庫不再有效。我試過在'https://www.playframework.com/documentation/2.5.x/ScalaI18N'的'文檔',但到目前爲止我沒有運氣。
我實現迄今:含
捻模板開關
@import play.api.Play.current
@import play.api.i18n.Messages.Implicits._
@import uk.my-org.urls.Link
@(langMap : Map[String, Lang], langToCall : (String => Call), customClass: Option[String] = None)(implicit lang: Lang)
<p>Current = @lang</p>
<p class="@if(customClass.isDefined) {@customClass.get}">
@langMap.map { case (key: String, value: Lang) =>
@if(lang.code != value.code) {
@Link.toInternalPage(
id = Some(s"$key-switch"),
url = s"${langToCall(key)}",
value = Some(key.capitalize)
).toHtml
} else {
@key.capitalize
}
@if(key != langMap.last._1) { @Html(" | ") }
}
</p>
頁包含開關
@import uk.my-org.exampleplay25.controllers.LanguageController
@import play.api.Application
@import play.api.i18n.Messages
@()(implicit request: Request[_], application: Application, messages: Messages, lang: Lang, messagesApi: MessagesApi)
<h1 id="message">Hello from example-play-25-frontend !</h1>
<h1>@Messages("test.message")</h1>
@clc = @{ Application.instanceCache[LanguageController].apply(application) }
@uk.my-org.exampleplay25.views.html.language_selection(clc.languageMap, clc.langToCall, Some("custom-class"))
的SwitchingController
package uk.my-org.exampleplay25.controllers
import javax.inject.Inject
import play.api.Play
import play.api.i18n._
import play.api.mvc._
import uk.my-org.play.config.RunMode
class LanguageController @Inject()(implicit val messagesApi: MessagesApi, lang: Langs) extends Controller with I18nSupport with RunMode {
protected def fallbackURL: String = Play.current.configuration.getString(s"$env.language.fallbackUrl").getOrElse("/")
def languageMap: Map[String, Lang] = Map(
"english" -> Lang("en"),
"cymraeg" -> Lang("cy-GB"),
"french" -> Lang("fr")
)
def langToCall(lang: String): Call = routes.LanguageController.switchToLanguage(lang)
def switchToLanguage(language: String) = Action { implicit request =>
val lang = languageMap.getOrElse(language, LanguageUtils.getCurrentLang)
val redirectURL = request.headers.get(REFERER).getOrElse(fallbackURL)
Redirect(redirectURL).withLang(Lang.apply(lang.code)).flashing(LanguageUtils.FlashWithSwitchIndicator)
}
}
Application.conf
play.i18n.langs = [ "en", "cy", "fr" ]
應用路線
GET /hello-world @uk.my-org.exampleplay25.controllers.HelloWorld.helloWorld
GET /language/:lang @uk.my-org.exampleplay25.controllers.LanguageController.switchToLanguage(lang: String)
的Hello World控制器
package uk.my-org.exampleplay25.controllers
import javax.inject.{Inject, Singleton}
import play.api.Play.current
import play.api.i18n.{I18nSupport, MessagesApi}
import play.api.mvc._
import uk.my-org.play.frontend.controller.FrontendController
import scala.concurrent.Future
@Singleton
class HelloWorld @Inject()(implicit val messagesApi: MessagesApi) extends FrontendController with I18nSupport {
val helloWorld = Action.async { implicit request =>
Future.successful(Ok(uk.my-org.exampleplay25.views.html.helloworld.hello_world()))
}
}
有人能看到我在做什麼錯?
它太多的代碼和問題還沒有真正被縮小的。我建議你先遷移到2.4並檢查它是否有效。然後遷移到2.5。如果這不起作用,請嘗試縮小問題範圍,並嘗試確定代碼在哪一點不再按預期運行。 – rethab