Play Framework Anorm withConnection Error

Question

我在Play Framework 2.5中有以下案例类和类。由于DB对象已被弃用，我正在尝试使用新的依赖注入方法，但不理解为什么我的代码不能编译。旧方法工作正常，新方法有编译错误。

隐式连接上缺少参数类型=＆gt;

package models

import javax.inject.{Inject, Singleton}

import play.db._
import anorm.SqlParser._
import anorm._
import play.api.db.DB
import play.api.Play.current


case class Department(id: Int,
                      name: String)

@Singleton
class DepartmentDao @Inject() (dBApi: DBApi) {

  private val db = dBApi.getDatabase("default")

  val simple = {
    get[Int]("department.id") ~
      get[String]("department.name") map {
      case id ~ name => Department(id, name)
    }
  }

  def getDepartments = DB.withConnection { implicit connection =>
    SQL("SELECT * FROM DEPARTMENT")
  }

  def getDepartmentsNew = db.withConnection { implicit connection =>
    SQL("SELECT * FROM DEPARMTMENT")
  }

}

更新：

我之前已经放置了代码看起来像我最初试图让它工作的东西。除非我遗漏了这些代码应该运行的东西。它与我在多个示例项目中看到的代码相同。

@Singleton
class DepartmentDao @Inject() (dBApi: DBApi) {

  private val db = dBApi.getDatabase("default")

  val simple = {
    get[Int]("department.id") ~
      get[String]("department.name") map {
      case id ~ name => Department(id, name)
    }
  }

  def getDepartments: Seq[Department] = db.withConnection { implicit connection =>
    SQL("SELECT * FROM DEPARMTMENT").as(simple.*)
  }
}