Question

Hi I’m learning Play Framework 2 with Java and have a problem. I use MongoDB, and have a simple class User with ObjectId as unique id.

public class User {


    @JsonProperty
    public ObjectId id;

..

in my view I want to add a button to delete current user, something like this :

 @form(routes.Application.deleteUser(user.id)) {
       <input type="submit" value="Delete">
 }

and in my routes file :

POST    /users/:id/delete               controllers.Application.deleteUser(id: org.bson.types.ObjectId)

But now I got an error :

“No URL path binder found for type org.bson.types.ObjectId. Try to implement an implicit PathBindable for this type”

I tried a lot of things, for example I tried to pass only the ObjectId value as a String, but nothing worked for me. Can anyone please help me with this ?

Answer 1

You could use play-salat which have neccessary binders, just add it as a dependency to your project/Build.scala and import it to your routes and templates:

import sbt._
import Keys._
import PlayProject._

object ApplicationBuild extends Build {

  val appDependencies = Seq(
    "se.radley" %% "play-plugins-salat" % "1.2-SNAPSHOT"
  )

  val main = PlayProject(appName, appVersion, appDependencies, mainLang = JAVA).settings(
    resolvers       += "OSS Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots/",
    routesImport    += "se.radley.plugin.salat.Binders._",
    templatesImport += "org.bson.types.ObjectId"
  )
}

Also take a look to this example application.