如何在Scala Play 2.5.8中的对象中使用配置

Question

I am migrating from play 2.4.x to play 2.5.8

While migrating I am getting a lot of deprecation related warning that I am trying to resolve. Once such error is method current in object Play is deprecated: This is a static reference to application, use DI instead

below is the object

object Foo{
  def testURL= {
   val test =  Play.current.configuration.getString("test.url")
}

If I try to use config = Configuration.load() I get the error overloaded method value load with alternatives:

(environment: play.api.Environment)play.api.Configuration (environment: play.api.Environment,devSettings: Map[String,AnyRef])play.api.Configuration cannot be applied to ()

I there a way to use the play.api.configuration here ? I don't want to convert object into singleton class.

Answer 1

I'm basing this answer on this group post because it's about as good an answer as you'll get for this topic.

What you're trying to do is an anti-pattern, because something is an object it should not depend on external state. Technically, configuration is based on the state of a file on the filesystem, so it is state in that sense.

To do this cleanly, you should use a class.