D
Size: a a a
D
MD
D
AD
def find_occasion(occasion_id)
occasion = Occasion.find(occasion_id)
occasion ? Success(occasion) : Failure(:occasion_not_found)
end
AD
User.maybe_find(id)
или
repo.root.where(…).limit(1).maybe_one
AD
AD
DA
AD
D
DA
AD
SM
AD
AD
SM
AD
AD
AD