Support for Play 3

Author: gmethvin

Diff for: .github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     name: Build and Test
     strategy:
       matrix:
-        scala: [2.12.13, 2.13.5]
+        scala: [2.13.14]
 
     runs-on: ubuntu-latest
     steps:
@@ -26,7 +26,7 @@ jobs:
       - name: Setup Java and Scala
         uses: olafurpg/setup-scala@v10
         with:
-          java-version: adopt@1.8
+          java-version: adopt@1.11
 
       - name: Cache sbt
         uses: actions/cache@v2

Diff for: build.sbt

@@ -10,17 +10,17 @@ developers := List(
   Developer(id = "Iterable", name = "Iterable", email = "[email protected]", url = url("https://iterable.com"))
 )
 
-scalaVersion := "2.13.5"
-crossScalaVersions := Seq(scalaVersion.value, "2.12.13")
+scalaVersion := "2.13.14"
+crossScalaVersions := Seq(scalaVersion.value)
 
-val PlayVersion = "2.8.6"
+val PlayVersion = "3.0.1"
 
 libraryDependencies ++= Seq(
   // Play! framework
-  "com.typesafe.play" %% "play" % PlayVersion,
-  "com.typesafe.play" %% "play-joda-forms" % PlayVersion,
+  "org.playframework" %% "play" % PlayVersion,
+  "org.playframework" %% "play-joda-forms" % PlayVersion,
   // dependencies for tests
-  "org.scalatest" %% "scalatest" % "3.2.5" % Test
+  "org.scalatest" %% "scalatest" % "3.2.18" % Test
 )
 
 parallelExecution in Test := false

Diff for: src/main/scala/com/iterable/play/utils/CaseClassMapping.scala

@@ -64,7 +64,7 @@ object CaseClassMapping extends Logging {
   }
 
   private def generateWrappedMappingForFormatter(fieldName: String, tpe: Type, formatter: Formatter[_]): Mapping[_] = {
-    val mapping = FieldMapping("")(formatter.asInstanceOf[Formatter[Any]])
+    @annotation.nowarn val mapping = FieldMapping("")(formatter.asInstanceOf[Formatter[Any]])
     generateWrappedMappingForMapping(fieldName, tpe, mapping)
   }
 

Diff for: src/test/scala/com/iterable/play/utils/CaseClassMappingSpec.scala

@@ -7,25 +7,25 @@ import play.api.data.{Form, FormError, Mapping}
 
 case class Baz(pls: String, work: Option[Long])
 object Baz {
-  implicit val mapping = CaseClassMapping.mapping[Baz]
+  implicit val mapping: CaseClassMapping[Baz] = CaseClassMapping.mapping
 }
 
 case class Foo(a: String, omg: Option[Seq[Baz]])
 object Foo {
-  implicit def mapping = CaseClassMapping.mapping[Foo]
+  implicit def mapping: CaseClassMapping[Foo] = CaseClassMapping.mapping
 }
 
 case class Bar(firstOne: Option[List[Long]], secondOne: String, third: Option[Foo], fourth: Option[Int]) extends UnbindableToWsRequest[Bar]
 object Bar {
-  implicit val mapping = CaseClassMapping.mapping[Bar]
+  implicit val mapping: CaseClassMapping[Bar] = CaseClassMapping.mapping
 }
 
 class CaseClassMappingSpec extends AnyWordSpec with Matchers {
   // TODO - it breaks on this, because
   //   scala.ScalaReflectionException: class Bar2 is an inner class, use reflectClass on an InstanceMirror to obtain its ClassMirror
   case class Bar2(firstOne: Int)
   object Bar2 {
-    implicit lazy val mapping = CaseClassMapping.mapping[Bar2]
+    implicit lazy val mapping: CaseClassMapping[Bar2] = CaseClassMapping.mapping
   }
 
   "CaseClassMapping" should {

Diff for: src/test/scala/com/iterable/play/utils/UnbindableToWsRequestSpec.scala

@@ -5,7 +5,7 @@ import org.scalatest.wordspec.AnyWordSpec
 
 case class User(name: String, age: Int, email: String, favoriteBands: Seq[String]) extends UnbindableToWsRequest[User]
 object User {
-    implicit val mapping = CaseClassMapping.mapping[User]
+    implicit val mapping: CaseClassMapping[User] = CaseClassMapping.mapping
 }
 
 class UnbindableToWsRequestSpec extends AnyWordSpec with Matchers {