CODEWITHSUNDEEP
scalaslick
Reza Sameei
Reza Sameei

Reputation: 838

How I can make a Compiled value from an Slick query wiht non-Rep pure values?

I have a query like this:

def getLatest( limit:Short, v:Rep[String] ) = ( for {
  (_,r) <- T1 join T2 on ( _.id === _.foreingId )
} yield r ).take( limit )

I can't make a "Compiled" value from this query because of "limit" ( A non Rep attribute in in argument-list ). What can I do in this case?

Upvotes: 1

Views: 646

Answers (1)

Reza Sameei
Reza Sameei

Reputation: 838

You shoukd use ConstColumn[_] ( http://slick.typesafe.com/doc/3.1.0/queries.html#compiled-queries ) : 

def getLatest( limit:ConstColumn[Long], v:Rep[String] ) = ( for {
  (_,r) <- T1 join T2 on ( _.id === _.foreingId )
} yield r ).take( limit )

val compiled = Compiled( getLatest _ ) // compiled( 10, "Hello" )

Upvotes: 2

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