Squeryl partial update does not compile - squeryl

Question

I'm not sure what squeryl is trying to tell me here:
Error: Cannot prove that org.squeryl.dsl.fsm.Unconditioned =:= org.squeryl.dsl.fsm.Conditioned.
On:
inTransaction {
update(AppDB.postTable) { p =>
where(p.id === postId)
set(p.upVotes := p.upVotes.~ + 1)
}
The error is on the set clause
schema:
object AppDB extends Schema {
val postTable = table[Post]("post")
val replyTable = table[Reply]("reply")
val postToReplies = oneToManyRelation(postTable, replyTable)
.via((p,r) => p.id === r.postId)
}
case class Post(body: String, image:Option[String]) extends KeyedEntity[Long] {
val id: Long = 0
val posted: Date = new Date()
var upVotes: Long = 0
var downVotes: Long = 0
}
case class Reply(postId: Long, body: String, image:Option[String]) extends KeyedEntity[Long] {
val id: Long = 0
val posted: Date = new Date()
}
Thanks for any help.

Answer 1

Try using () instead of {} around your where and set clauses, like:
inTransaction {
update(AppDB.postTable) ( p =>
where(p.id === postId)
set(p.upVotes := p.upVotes.~ + 1)
)
}
I am not sure why, but I have had issues with {} in the past. When I tested the change against your code, the problem seemed to get resolved.