如何在多行上拆分Slick插值查询？

Question

有没有办法在代码中的多行上拆分Slick插值查询？我的查询往往会变得很长。

所以我寻找以下内容：

val query = sql"select * from DOCUMENTS " + 
            sql"where language = $lang order by publication_date desc"
query.as[ResearchDocument]

但这会导致

type mismatch;
 found   : scala.slick.jdbc.SQLInterpolationResult[String]
 required: String
          sql"where language = $lang order by publication_date desc"
          ^

Answer 1

好的，看起来像Scala三重引号字符串是要走的路：

val query = sql"""select * from DOCUMENTS
                  where language = $lang order by publication_date desc"""