Problem with === and Slick

[domdorn]

Hi,

I have a problem which I cannot find the answer to: As soon as I have a prelude Newtype used anywhere in a file, preludes === implicit kicks in and hides the === Operator defined in Slick that are used to lift ordinary values to a Rep[A].
I have not imported anything from prelude in the file, its enough that a parameter in a method is a Newtype.

e.g. the code works, when "projectId" is a UUID:

case class BerechnungsstueckPersistenceSPIImpl (database: Database) extends BerechnungsstueckPersistenceSPI with DBFailureMixin {
  import com.acme.project.adapters.outbound.persistence.slick.DomainIdImplicits._
  import com.acme.project.adapters.outbound.persistence.PostgresProfile.api._


  val berechnungsstuecke: TableQuery[Berechnungsstuecke] = TableQuery[Berechnungsstuecke]
  override def getBerechnungsstueckeForProject(projectId: UUID)(implicit c: CorrelationId): ZIO[Any, Failure, List[Berechnungsstueck]] = {
    val query = berechnungsstuecke.filter(_.projectId.===(projectId)).result

    ZIO.fromFuture(_ => {
        implicit val ec: ExecutionContext = database.db.executor.executionContext
        database.db.run(query)
      }
      ).map(l => l.map(v => Berechnungsstueck(v.id, v.from, v.to, v.enabled)).toList)
      .mapError(e => handleFailure(e))

  }

but if I change projectId to be a object ProjectId extends zio.prelude.Newtype[UUID], the === operator is using the implicit in zio.prelude.EqualSyntax.EqualOps#===

e.g. if the class looks like this:

case class BerechnungsstueckPersistenceSPIImpl (database: Database) extends BerechnungsstueckPersistenceSPI with DBFailureMixin {
  import com.acme.project.adapters.outbound.persistence.slick.DomainIdImplicits._
  import com.acme.project.adapters.outbound.persistence.PostgresProfile.api._


  val berechnungsstuecke: TableQuery[Berechnungsstuecke] = TableQuery[Berechnungsstuecke]
  def getBerechnungsstueckeForProjectNewtype(projectId: ProjectId)(implicit c: CorrelationId): ZIO[Any, Failure, List[Berechnungsstueck]] = {
    val query = berechnungsstuecke.filter(_.projectId.===(projectId)).result

    ZIO.fromFuture(_ => {
        implicit val ec: ExecutionContext = database.db.executor.executionContext
        database.db.run(query)
      }
      ).map(l => l.map(v => Berechnungsstueck(v.id, v.from, v.to, v.enabled)).toList)
      .mapError(e => handleFailure(e))

  }

Is there a way to disable this?

Thanks,
Dominik