scala - Slick 3. For Comprehension on query. Can I force to have Option -

when run next query, nothing sometimes. hapens when no associated breeder founded flower sort.

for {   sort <- flowersorts if sort.id === flowersortid   sortdetails <- flowerssortdetails if sortdetails.id === flowersortid   ftype <- flowertypes if sort.flowertypeid === ftype.id   breeder <- breeders if breeder.id === sort.breederid   lastbuy <- flowersortslastbuy if lastbuy.flowersortid === flowersortid } yield (sort, sortdetails, ftype, breeder, lastbuy) 

i`m wondering possible somehow option[] breeder? try achive like:

for {   sort <- flowersorts if sort.id === flowersortid   sortdetails <- flowerssortdetails if sortdetails.id === flowersortid   ftype <- flowertypes if sort.flowertypeid === ftype.id   breeder: option[_] <- breeders if breeder.id === sort.breederid   lastbuy: option[_] <- flowersortslastbuy if lastbuy.flowersortid === flowersortid } yield (sort, sortdetails, ftype, breeder, lastbuy) 

i know how achive want without comprehensions.