Rails 3 validates验证器
2013-07-13 02:21 张小萌 阅读(185) 评论(0) 编辑 收藏 举报之前:
def validate
if baggage >flight.baggage_allowance
errors.add_to_base("You have too much baggage")
end
if flight.seats.size >= flight.capacity
errors.add_to_base("The flight is fully booked")
end
end
end
Rails 3:
validate :baggage_does_not_exceed_baggage_capacity, :seats_available
def baggage_does_not_exceed_baggage_capacity
errors.add(:baggage, ": The baggage limit is #{flight.baggage_allowance}") if baggage > flight.baggage_allowance
end
def seats_available
errors.add(:flight_id, "The flight is booked") if flight.seats.size >= flight.capacity
end
