Slick+play example

  def insert = DBAction { implicit rs =>
    catForm.bindFromRequest.fold(
    badForm =>
      BadRequest(s"Form cannot be parsed, errors: ${badForm.errors}"),
    cat =>
      if (cats.filter(_.name === cat.name).exists.run) {
          BadRequest(s"A cat named ${cat.name} already exists")
      } else {
        cats.insert(cat)
        Redirect(routes.Application.index())
      }
    )
  }