Play 20 : implicit object in views

[zka]

Hello,

is it possible to pass implicit objects in views ? like request or
flash ?

in Play 1.x whe had renderArgs.

[Drew Hamlett]

It's done like this now.

@(users : Seq[User])(implicit flash: Flash)

Put this at the top of your view.

In Play 1.x, request, session and a few other objects were always
available in the view.

[Brian Nesbitt]

https://github.com/playframework/Play20/wiki/JavaTemplates

Search for "And even implicit parameters" about 1/2 way down the page

@(title: String)(body: => Html)(implicit request: play.api.mvc.Request)

[flurdy]

(I know I am replying to an older thread but it seemed relevant)

Does this mean if I require an implicit object in the core layout template, I then need to add the implicit parameter to it and subsequently every template? And then also add the object to every controller method? It seems that way, but not very DRY.

I am trying to exclude external content in development mode, such as analytics, adsense, twitter calls etc In Play 1.x this was easily done in one place only with either "#{ifnot request.domain=='localhost'}" or "#{ifnot play.Play.mode==play.Play.Mode.DEV}"

[Manuel Bernhardt]

Hi,

You can add an import to an object in your SBT build definition like e.g.

templatesImport += "views.Implicits._"

Then the implicits from there are in scope in all templates

Manuel

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[flurdy]

Nice. Knew there would be a way :)

On Friday, February 24, 2012 7:02:51 AM UTC, Manuel Bernhardt wrote:

Hi,

You can add an import to an object in your SBT build definition like e.g.

    templatesImport += "views.Implicits._"

Then the implicits from there are in scope in all templates

Manuel

[sas]

Hey!

nice tip

should go straight to the docs

[Andriy Zhdanov]

Yeah, nice tip, but I think the question was for this, e.g.:

object Application extends Controller {
implicit def username(implicit request: RequestHeader) =
request.session.get("username").orElse(
request.cookies.get("rememberme").map( _.value ))
}

then your view can use it as request or flash:

@()(implicit flash: Flash, request: RequestHeader, user:
Option[String])

Thank you.

[Steven Wong]

Hi,

Where is views.Implicits? I've tried adding both views.Implicits and views.implicits to my Build.scala and both says

implicits is not a member of package views
import views.Implicits._
             ^

Steve