Oracle decode logic implementation using Slick - oracle

Question

I have following problem - there is sql with DECODE oracle function:
SELECT u.URLTYPE, u.URL
FROM KAA.ENTITYURLS u
JOIN KAA.ENTITY e
ON decode(e.isurlconfigured, 0, e.urlparentcode, 1, e.CODE,
NULL)=u.ENTITYCODE
JOIN CASINO.Casinos c ON e.casinocode = c.code
WHERE e.NAME = $entityName
AND C.NAME = $casinoName
I'm trying to realize this sql in my slick code , like:
val queryUrlsEntityName = for {
entityUrl <- entityUrls
entity <- entities.filter(e => e.name.trim===entityName &&
entityUrl.entityCode.asColumnOf[Option[Int]]==(e.isURLConfigured match
{
case Some(0) => e.urlParentCode
case Some(1) => e.code.asColumnOf[Option[Int]]
case _ => None
}
)
)
casino <- casinos.filter(_.name.trim===casinoName) if
entity.casinoCode==casino.code
} yield (entityUrl)
But I don't understand how can I implement of matching of values in line
case Some(0) => e.urlParentCode
because I'm getting error
constructor cannot be instantiated to expected type;
[error] found : Some[A]
[error] required: slick.lifted.Rep[Option[Int]]
[error] case Some(0) => e.urlParentCode
Thanks for any advice

Answer 1

You should rewrite your code in pattern-matching section so you could compare required Rep[Option[Int]] - to left type, in your case it's Option[Int], or transform Rep[Option[Int]] to Option[Int] type. Rep is only the replacement to the column datatype in slick. I would prefer the first variant - this answer shows how to make the transformation from Rep, or you can use map directly:
map(u => (u.someField)).result.map(_.headOption.match {
case Some(0) => .....
})