core data - NSPredicate with swift -


hello i'm using core data project heres nsfetchedresultscontroller setup

var fetchrequest:nsfetchrequest = nsfetchrequest(entityname: "entry") let positiondescriptor  = nssortdescriptor(key: "position", ascending: true) let iddescriptor  = nssortdescriptor(key: "id", ascending: true) fetchrequest.sortdescriptors = [positiondescriptor, iddescriptor] fetchrequest.predicate  = nspredicate(format: "list = %@", self.list!) self.frc = nsfetchedresultscontroller(fetchrequest: fetchrequest, managedobjectcontext: cdc.context, sectionnamekeypath: nil, cachename: nil) self.frc?.delegate = self

every "entry" entity has lists i'm passing list when i'm creating view controller problem predicate doesn't work 

println(self.list!)

print nothing on console ideas?

thanks!


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