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我遇到了一个过滤 slick-3 中数字列表的条件。这是我的实体。

    case class Company(id:Long, name: String, companyTypeId: Option[List[Long]] = None)

    implicit def GetResultCompany(implicit e0: GR[Long], e1: GR[String], e2: GR[Option[List[Long]]]): GR[Company] = GR{
        prs => import prs._
          CompanyTest.tupled((<<[Long], <<[String],<<?[List[Long]]))
      }
    class CompanyTable(_tableTag: Tag) extends Table[Company](_tableTag, Some("base"), "Company") {
        def * = (id, name,companyTypeId) <> (CompanyTest.tupled, CompanyTest.unapply)
        def ? = (Rep.Some(id), Rep.Some(name), companyTypeId).shaped.<>({r=>import r._; _1.map(_=> CompanyTest.tupled((_1.get, _2.get _3)))}, (_:Any) =>  throw new Exception("Inserting into ? projection not supported."))
        val id: Rep[Long] = column[Long]("CompanyId", O.AutoInc, O.PrimaryKey)
        val name: Rep[String] = column[String]("Name", O.Length(250,varying=true))
        val companyTypeId: Rep[Option[List[Long]]] = column[Option[List[Long]]]("CompanyTypeId", O.Length(19,varying=false), O.Default(None))
      }
    lazy val companyTable = new TableQuery(tag => new CompanyTable(tag))

在这里我想搜索companyTypeId它是Option[List[Long]]

我尝试通过companyTable.filter(_.companyTypeId === Some(List(1,2)))但得到Vector()并且表中有一行数据，companyTypeId 为 {1}。我正在使用 Postgres DB。

提前致谢。

4

1 回答 1

2

也许你可以这样尝试：

companyTable.filter(_.companyTypeId inSet(Traversable(List(1,2)))) 
// the above query filters rows with values in the given list
于 2015-06-14T11:12:25.177 回答