Pfthb

I have the next code, fromDateValue, toDateValue are obtained from a string with DB YYYY-MM-DD hh:mm:ss format using Timestamp.valueOf. inv.montYear is declared as Option[String] and has values as "May 2018", etc. The function fromMonthYear2DBformat

def fromMonthYear2DBformat(mydate: Option[String]): java.sql.Timestamp = 

 println("fromMonthYear2DBformat>mydate = " + mydate)

 if (mydate != None) 
 val dateInfo = mydate.getOrElse("").split(" ")
 if (dateInfo.size > 1) 
 val year = dateInfo(1)
 val monthi = monthName2Number(dateInfo(0))
 val answer =
 Timestamp.valueOf(year + "-" + monthi + "-" + "01 " + "00:00:01.01")
 answer
 else
 Timestamp.valueOf("1900-01-01 00:00:00.01")
 else 
 Timestamp.valueOf("1900-01-01 00:00:00.01")
 

will be used to convert dates like "May 2018" to some java.sql.Timestamp. The problem I have is that for some reason through the next code

val predicate = (inv: Invoice) =>
 (inv.project.getOrElse("NULL") === prj.id.getOrElse("NULL")
 && fromDateValue.before(fromMonthYear2DBformat(Some(inv.monthYear.getOrElse("NULL").toString)))
 && toDateValue.after(fromMonthYear2DBformat(Some(inv.monthYear.getOrElse("NULL").toString))))

val projectInvoicesInTimeInterval = Await.result(
 for 
 lInvoicesOfProject <- DomInvoices.getAll(predicate)
 yield lInvoicesOfProject,
 Duration.Inf
)

the parameter mydate of fromMonthYear2DBformat is getting the value: Some(Rep(OptionFold)). I was expecting something like Some("May 2018"). Any ideas on why this is happening?
I want to add that if instead of using

(fromDateValue.before(fromMonthYear2DBformat(Some(inv.monthYear.getOrElse("NULL").toString) )))

I use

(fromDateValue.before(fromMonthYear2DBformat(Some(inv.monthYear) )))

i get the error:

 Type mismatch;
 found : slick.driver.MySQLDriver.api.Rep[Option[String]]
 (which expands to) slick.lifted.Rep[Option[String]]
 required: String

so, maybe the question should be how to satisfy this requirement