我是Scala的新手,一直在苦苦挣扎,无法看到如何将查询结果返回给调用方法
我有一个简单的UserDto
case class UserDto(val firstName:String,
val lastName:String,
val userName:String,
val isAdmin:Boolean) {}
用户表对象
object User extends Table[(String, String, String, Boolean)]("USER") {
def firstName = column[String]("FIRST_NAME")
def lastName = column[String]("LAST_NAME")
def userName = column[String]("USER_NAME")
def admin = column[Boolean]("IS_ADMIN")
def * = firstName ~ lastName ~ userName ~ admin
}
和查询类
class UserQuerySlickImpl(dataSource:DataSource) {
def getResults(userName:String):Option[UserDto] = {
var resultDto:Option[UserDto] = None
Database.forDataSource(dataSource) withSession {
val q = for {u <- User if u.userName is userName}
yield (u.firstName, u.lastName, u.userName, u.admin) …