如何在Play with Scala和Slick中构建一对多的关系形式？

Question

基于@JacobusR's answer如何在控制器中编写一个表单，允许我将其作为Form类型发送到视图，并且所有单面表列映射和多边表seq-mapping？< / p>

这样的事情：

在控制器

中

private val DirectorateAndItsServiceAreas: Form[???] = Form(
mapping(
  "dirCode" -> nonEmptyText,
  "name" -> text,
  "serviceAreaRow" -> seq( /* don't have and don't want serviceAreasRow in Directorate table */
    mapping(
      "areaCode" -> nonEmptyText,
      "dirCode" -> nonEmptyText,
      "name" -> text
    )(ServiceArea.apply)(ServiceArea.unapply)
  )
)(Directorate.apply)(Directorate.unapply)

）

在视图中

@(DirectorateAndItsServiceAreasForm: Form[Directorate/ServiceArea],...